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Thick epitaxial growth of AlN and AlGaN by using controlling molecules of source precursors

Planned Research

Project AreaOptoelectronics Frontier by Nitride Semiconductor -Ultimate Utilization of Nitride Semiconductor Material Potential-
Project/Area Number 18069004
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

KOUKITU Akinori  Tokyo University of Agriculture and Technology, 大学院・工学研究院, 教授 (10111626)

Co-Investigator(Kenkyū-buntansha) KUMAGA Yoshinao  東京農工大学, 大学院・工学研究院, 准教授 (20313306)
MURAKAMI Hajime  東京農工大学, 大学院・工学研究院, 助教 (90401455)
Project Period (FY) 2006 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥67,900,000 (Direct Cost: ¥67,900,000)
Fiscal Year 2010: ¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 2009: ¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 2008: ¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 2007: ¥15,300,000 (Direct Cost: ¥15,300,000)
Fiscal Year 2006: ¥22,900,000 (Direct Cost: ¥22,900,000)
Keywords窒化物半導体 / 厚膜エピタキシー / 自立基板結晶 / Al系窒化物 / 原料分子制御法 / HVPE成 / HVPE成長 / AlN / AlGaN / AIN / AIGaN / A1系窒化物 / A1N / A1GaN / 結晶成長 / エピタキシャル / 結晶工学
Research Abstract

In this project, we have researched the growth of the high-quality and thick epitaxial layer of the group III nitrides by using a new HVPE growth method with controlling the molecules of source precursors. For Al-related nitrides, the molecule which doesn't react with quartz reactor was used and for In-related nitrides, the molecule which has a large formation energy of InN was used. As a result, we succeeded the growth of the high-quality and thick epitaxial layers of AlN, AlGaN and InN.

Report

(7 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report   Self-evaluation Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (210 results)

All 2011 2010 2009 2008 2007 2006 Other

All Journal Article (77 results) (of which Peer Reviewed: 56 results) Presentation (124 results) Book (7 results) Remarks (2 results)

  • [Journal Article] Carrier Gas Dependence at Initial Processes for a-Plane AlN Growth on r-Plane Sapphire Substrates by Hydride Vapor Phase Epitaxy2011

    • Author(s)
      Jumpei Tajima, Chikashi Echizen, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Kazuya Takada, Akinori Koukitu
    • Journal Title

      Jpn., J.Appl.Phys. 50

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Thermodynamic analysis on HVPE growth of InGaN ternary alloy2011

    • Author(s)
      Koshi Hanaoka, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth

      Volume: 318 Pages: 441-445

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of semi-polar InN layer on GaAs (110) surface by MOVPE2011

    • Author(s)
      Hisashi Murakami, Hyun Chol Cho, Mayu Suematsu, Rie Togashi, Yoshinao Kumagai, Ryuichi Toba, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth

      Volume: 318 Pages: 479-482

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semi-polar InN(10-13) dominant growth on GaAs(110) substrate by mixing hydrogen in carrier gas2011

    • Author(s)
      H.C.Cho, M.Suematsu, H.Murakami, Y.Kumagai, R.Toba, A.Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 8(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of in-plane epitaxial relationship of c-plane AlN layers grown on a-plane sapphire substrates by hydride vapor phase epitaxy2011

    • Author(s)
      J.Tajima, R.Togashi, H.Murakami, Y.Kumagai, K.Takada, A.Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 8(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-principles study on the effect of surface hydrogen coverage on the adsorption process of ammonia on InN(0001) surfaces2011

    • Author(s)
      Hikari Suzuki, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 8(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical study on the influence of surface hydrogen coverage on the initial growth process of AlN(0001) surfaces2011

    • Author(s)
      Hikari Suzuki, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 8(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tri-halide vapor phase epitaxy of GaN using GaCl_3 gas as a group III precursor2011

    • Author(s)
      T.Yamane, K.Hanaoka, H.Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 8(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of void formation beneath thin AlN layers by decomposition of sapphire substrates for self-separation of thick AlNlayers grown by HVPE2010

    • Author(s)
      Yoshinao Kumagai, Yuuki Enatsu, Masanari Ishizuki, Yuki Kubota, Jumpei Tajima, Toru Nagashima, Hisashi Murakami, Kazuya Takada, Akinori Koukitu
    • Journal Title

      J.Cryst.Growth 312

      Pages: 2530-2536

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Influence of substrate polarity of (0001) and (0001)GaN surfaces on hydride vapor-phase epitaxy of InN2010

    • Author(s)
      Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      J.Cryst.Growth 312

      Pages: 651-655

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Selective growth of InN on patterned GaAs(111)B substrate-influence of InN decomposition at the interface2010

    • Author(s)
      Hisashi Murakami, Hyun-Chol Cho, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 7 Pages: 2019-2021

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature dependence of InN growth on (0001) sapphire substrates by atmospheric pressure hydride vapor phase epitaxy2010

    • Author(s)
      Yoshinao Kumagai, Hirokazu Adachi, Aya Otake, Yoshihiro Higashikawa, Rie Togashi, Hisashi Murakami, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 7 Pages: 2022-2024

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical investigation of the decomposition mechanism of AlN(0001) surface under a hydrogen atmosphere2010

    • Author(s)
      Hikari Suzuki, Uliana Panyukova, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C

      Volume: 7 Pages: 2265-2267

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of void formation beneath thin AlN layers by decomposition of sapphire substrates for self-separation of thick AlN layers grown by HVPE2010

    • Author(s)
      Yoshinao Kumagai, Yuuki Enatsu, Masanari Ishizuki, Yuki Kubota, Jumpei Tajima, Toru Nagashima, Hisashi Murakami, Kazuya Takada, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth

      Volume: 312 Pages: 2530-2536

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of a crack-free AlN template layer on sapphire substrate by hydride vapor-phase epitaxy at 1450℃2009

    • Author(s)
      Jumpei Tajima, Hisashi Murakami, Yoshinao Kumagai, Kazuya Takada, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth 311

      Pages: 2837-2839

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical investigation on the decomposition process of GaN(0001)surface under a hydrogen atmosphere2009

    • Author(s)
      Hikari Suzuki, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth 311

      Pages: 3103-3105

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ gravimetric monitoring of surface reactions between sapphire and NH_32009

    • Author(s)
      Kazuhiro Akiyama, Yasuhiro Ishii, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth 311

      Pages: 3110-3113

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of misorientation of AIN layer grown on (111)Si for freestanding substrate2009

    • Author(s)
      K.Saito, J.Tajima, Y.Kumagai, M.Ishizuki, K.Takada, H.Morioka, A.Koukitu
    • Journal Title

      Physica Status Solidi C 6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ab initio calculation for an initial growth process of GaN on(0001)and(000-1)surfaces by vapor phase epitaxy2009

    • Author(s)
      Hikari Suzuki, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Physica Status Solidi C 6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of polarity dependent InN{0001}decomposition in N_2 and H_2 ambient2009

    • Author(s)
      R.Togashi, T.Kamoshita, H.Adachi, H. Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      Physica Status Solidi C 6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polarity control and preparation of AlN nano-islands by hydride vapor phase epitaxy2009

    • Author(s)
      Toru Nagashima, Keiichiro Hironaka, Masanari Ishizuki, Yoshinao Kumagai, Akinori Koukitu, Kazuya Takada
    • Journal Title

      Physica Status Solidi C 6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Controlled formation of voids at the AlN/sapphire interface by sapphire decomposition for self-separation of the AlN layer2009

    • Author(s)
      J.Tajima, Y.Kubota, M.Ishizuki, T.Nagashima, R.Togashi, H.Murakami, Y.Kumagai, K.Takada, A.Koukitu
    • Journal Title

      Physica Status Solidi C 6

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ Gravimetric Monitoring of Thermal Decomposition and Hydrogen Etching Rates of 6H-SiC(0001)Si Face2009

    • Author(s)
      Kazuhiro Akiyama, Yasuhiro Ishii, Sohei Abe, Hisashi Murakami, Yoshinao Kumagai, Hironori Okumura, Tsunenobu Kimoto, Jun Suda, Akinori Koukitu
    • Journal Title

      Japanese Journal of Applied Physics 48

    • NAID

      40016743032

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of substrate polarity of(0001)and(000-1)GaN surfaces on hydride vap or-phase epitaxy of InN2009

    • Author(s)
      Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Journal Title

      Journal of Crystal Growth 312

      Pages: 651-6550

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polarity control and preparation of AIN nano-islands by hydride vapor phase epitaxy2009

    • Author(s)
      T. Nagashima, K. Hironaka, M. Ishizuki, Y. Kumagai, A. Koukitu, K. Takada
    • Journal Title

      Physica Status Solidi(c) (印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Self-Separation of a Thick AlN Layer from a Sapphire Substrate via Interfacial Voids Formed by the Decomposition of Sapphire2008

    • Author(s)
      Yoshinao Kumagai, Jumpei Tajima, Masanari Ishizuki, Toru Nagashima, Hisashi Murakami, Kazuya Takada, Akinori Koukitu
    • Journal Title

      Appl.Phys.Express 1

    • NAID

      210000013992

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] In situ Gravimetric Monitoring of Decomposition Rate on Surface of (1012) R-Plane Sapphire for High-Temperature Growth of Nonpolar AlN2008

    • Author(s)
      K. Akiyama, H. Murakami, Y. Kumagai, and A. Koukitu
    • Journal Title

      Jpn. J. Appl. Phys 47

      Pages: 3434-3437

    • Related Report
      2008 Self-evaluation Report
  • [Journal Article] Self-Separation of a Thick AIN Layer from a Sapphire Substratevia Interfacial Voids Formed by the Decomposition of Sapphire2008

    • Author(s)
      Y. Kumagai, J. Tajima, M. Ishizuki, T. Nagashima, H. Murakami, K. Takada, A. Koukitu
    • Journal Title

      Applied Physics Express 1

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of hydrogen input partial pressure on the polarity of InN on GaAs (111) A grown by metalorganic vapor phase epitaxy2008

    • Author(s)
      H. Murakami, J. Torii, H.-C. Cho, Y. Kumagai, A. Koukitu
    • Journal Title

      Journal of Crystal Growth 310

      Pages: 1602-1606

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ab initio calculation for the decomposition process of_GaN (0001) and (000-1) surfaces2008

    • Author(s)
      H. Suzuki, R. Togashi, H. Murakami, Kumagai, A. Koukitu
    • Journal Title

      Journal of Crystal Growth 310

      Pages: 1632-1636

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ Gravimetric Monitoring of Decomposition Rate on Surface of (1012) R-Plane Sapphire for High-Temperature Growth of Nonpolar AIN2008

    • Author(s)
      K. Akiyama, H. Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Japanese Journal of Applied Physics 47

      Pages: 3434-3437

    • NAID

      40016057214

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of a freestanding AIN substrate prepared by hydride vapor phase epitaxy2008

    • Author(s)
      Y. Kumagai, T. Nagashima, H. Murakami, K. Takada, A. Koukitu
    • Journal Title

      Physica Status Solidi(c) 5

      Pages: 1512-1514

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of thin protective AIN layers on sapphire substrates at 1065℃ for hydride vapor phase epitaxy of AIN above 1300 ℃2008

    • Author(s)
      J. Tajima, Y. Kubota, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Physica Status Solidi(c) 5

      Pages: 1515-1517

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental and ab-initio studies of temperature dependent InN decomposition in various ambient2008

    • Author(s)
      R. Togashi, T. Kamoshita, Y. Nishizawa, H. Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Physica Status Solidi(c) 5

      Pages: 1518-1521

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-temperature growth of thick AIN layers on sapphire (0001) substrates by solid source halide vapor-phase epitaxy2008

    • Author(s)
      K. Eriguchi, T. Hiratsuka, H. Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Journal of Crystal Growth 310

      Pages: 4016-4019

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improvements in the crystalline quality of MOVPE-InN layers by facet controlling with hydrogen partial pressure2008

    • Author(s)
      H. Murakami, H.-C. Cho, Y. Kumagai, A Koukitu
    • Journal Title

      Journal of Crystal Growth 310

      Pages: 4954-4958

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First principles study of the decomposition processes of AIN in ahydrogen atmosphere2008

    • Author(s)
      U. Panyukova, H. Suzuki, R. Togashi, Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Physica Status Solidi(c) 5

      Pages: 3042-3044

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ Gravimetric Monitoring of Decomposition Rate on Surface of (1012) R-Plane Sapphire for High-temperature Growth of Nonpolar AIN2008

    • Author(s)
      K. Akiyama, H. Murakami, Y. Kumagai, and A. Koukitu
    • Journal Title

      Jpn. J. Appl. Phys. 47

      Pages: 3434-3437

    • NAID

      40016057214

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HVPE growth of AlxGa1-xN ternary alloy using AlCl3 and GaCl2007

    • Author(s)
      Akinori Koukitu, Fumitaka Satoh, Takayoshi Yamane, Hisashi Murakami, Yoshinao Kumagai
    • Journal Title

      J.Cryst.Growth 305

      Pages: 335-339

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of a Freestanding AlN Substrate by Hydride Vapor Phase Epitaxy at 1230℃ Using (111)Si as a Starting Substrate2007

    • Author(s)
      Yoshinao Kumagai, Toru Nagashima, Akinori Koukitu
    • Journal Title

      Jpn.J.Appl.Phys. 46

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Hydride vapor phase epitaxy of InN by the formation of InCl3 using In metal and Cl22007

    • Author(s)
      Yoshinao Kumagai, Jun Kikuchi, Yuuki Nishizawa, Hisashi Murakami, Akinori Koukitu
    • Journal Title

      J.Cryst.Growth 300

      Pages: 57-61

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical Analysis for Surface Reconstruction of AIN and InN in the Presence of Hydrogen2007

    • Author(s)
      H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, and A. Koukitu
    • Journal Title

      Jpn. J. Appl. Phys. 46

      Pages: 5112-5115

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analyses of GaN (0001) and surfaces by highly-charged ions2007

    • Author(s)
      K.Motohashi, K. Hosoya, M. Imano, S. Tsurubuchi and A.Koukitu
    • Journal Title

      Surface Science 601

      Pages: 5304-5308

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Properties of Fe-dopcd semi-insulating GaN substrates for high-frequency device fabrication2007

    • Author(s)
      J.A. Freitas Jr., J.G. Tischler, J.-H. Kim, , Y. Kurnagai and A. Koukitu
    • Journal Title

      Journal of Crystal Growth 305

      Pages: 403-407

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Al- and N-polar AIN laters layers on c-plane sapphire substrates by modified flow-modulation MOCVD2007

    • Author(s)
      M. Takeuchi, H. Shimizu, R.Kajitami, K. Kawasaki, T.Kinoshita, K. Takada, H. Murakami, Y.Kumagai, Y. Kumagai, A. Koukitu, T. Koyama, S.F.Chichibue, Y. Aoyagi
    • Journal Title

      Jpn. J. Appl. Phys. 305

      Pages: 360-365

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improvement of AIN crystalline quality with high epitaxial growth ratc by hydridc vapor phase epitaxy2007

    • Author(s)
      T. Nagashima, M. Harada, A. Hakomori, H, Yanagi, H. Fukuyama, Y. Kumagai, A. Koukitu, K. Takada
    • Journal Title

      Journal of Crystal Growth 305

      Pages: 355-359

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polarity dependence of AIN {0001} decomposition in flowing H22007

    • Author(s)
      Y. Kumagai, K. Akiyama, R. Togashi, H. Murakami, M. Takeuchi, T. Kinoshita, K. Takada, Y. Aoyagi, A. Koukitu
    • Journal Title

      Journal of Crystal Growth 305

      Pages: 366-371

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HVPE growth of AlxGal-xN tcrnory alloy using ALCl3 and GaCl2007

    • Author(s)
      Akinori Koukitu, Takayoshi Yamane, Fumitaka Satoh, Hisashi Murakami, Yoshinao Kumagai
    • Journal Title

      Journal of Crystal Growth 305

      Pages: 335-339

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical study of the relationship between growth condition and atomic arrangement of InGaN2007

    • Author(s)
      Y. Kangawa, K. Kakimoto, T. Ito, A. Koukitu
    • Journal Title

      Physica status solide(b) 224

      Pages: 1784-1788

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of hydrogen coverage on Si{111} substrate on the growth of GaN buffer layer2007

    • Author(s)
      Y. Matsuo, Y. Kangawa Rie Togashi, K. Kakimoto and A. Koukitu
    • Journal Title

      Journal of Crystal Growth 300

      Pages: 66-69

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-speed epitaxial growth AIN above 1200 ºC by hydride vapor phase epitaxy2007

    • Author(s)
      T. Nagashima, M. Harada, H. yanagi, Y. kumagai, A. Koukitu, K.Takada
    • Journal Title

      Journal of Crystal Growth 300

      Pages: 42-44

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of thick AlxGal-xN ternary alloy by hydride vapor phase epitaxy2007

    • Author(s)
      T. Yamane, F. Satoh, H. Murakami, Y. Kumagai and A. Koukitu
    • Journal Title

      Journal of Crystal Growth 300

      Pages: 164-167

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydride vapor phase epitaxy of InN by the formation of InCl3 using In metal and Cl22007

    • Author(s)
      Y. Kumagai, J. Kikuchi, Y. Nishizawa, H; Murakami, and A Koukitu
    • Journal Title

      Journal of Crystal Growth 300

      Pages: 57-61

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ab initio calculation for the decomposition proces of GaN (0001) and (000-1) surfaces2007

    • Author(s)
      H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai and A. Koukitu
    • Journal Title

      Journal of Crystal Growth 310

      Pages: 1632-1636

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-Principles Calculation and X-ray Absorption Fine Structure Analys is of Fc Doping Mcchanism for Scomi-Inaulating CaN Crowth on GaAs Substrates2007

    • Author(s)
      R. Togashi, F. Sato, H. Murakami, J. Iihara, K. Yamaguchi, Y. Kumagai, A. Koukitu
    • Journal Title

      Pysica State Solide 244

      Pages: 1862-1866

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ GraVimetric Monitoring of Decomposition Rate on the Surface of (0001) c-plane Sapphire for the High Temperature Growth of AIN2007

    • Author(s)
      K. Akiyama, T. Araki, H. Murakami, Y. kumagai, and A. koukitu
    • Journal Title

      Pysica State Solide 4

      Pages: 2297-2300

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new system for growing thick InN layers by hydride vapor phase epitaxy2007

    • Author(s)
      J. Kikuchi, Y. Nishizawa, H. Murakami, Y. Kumagai, A. Koukitu
    • Journal Title

      Pysica State Solide 4

      Pages: 2419-2422

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] MOVPE-like HVPE of AIN using solid aluminum trichloride source2007

    • Author(s)
      K.Eriguchi, H.Murakami, U.Panyukova, Y.Kumagai, S.Ohira, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.298

      Pages: 332-335

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Influence of surface atom arrangement on the growth of InN layers on GaAs (111)A and (111)B surfaces by metalorganic vapor phase epitaxy2007

    • Author(s)
      H.Murakami, J.Torii, Y.Kumagai, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.298

      Pages: 387-389

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Analysis of compositional instability of InGaN by Monte Carlo simulation2007

    • Author(s)
      Y.Kangawa, K.Kakimoto, T.Ito, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.298

      Pages: 190-192

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Hydride vapor phase epitaxy of InN by the formation of InCl_3 using In metal and Cl_22007

    • Author(s)
      Y.Kumagai, J.Kikuchi, Y.Nishizawa, H.Murakami, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.300

      Pages: 57-61

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Growth of thick Al_xGa_<1-x>N ternary alloy by hydride vapor phase epitaxy2007

    • Author(s)
      T.Yamane, F.Satoh, H.Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.300

      Pages: 164-167

    • Related Report
      2006 Annual Research Report
  • [Journal Article] High-speed epitaxial growth of AlN above 1200℃ by hydride vapor phase epitaxy2007

    • Author(s)
      T.Nagashima, M.Harada, H.Yanagi, Y.Kumagai, A.Koukitu, K.Takada
    • Journal Title

      Journal of Crystal Growth Vol.300

      Pages: 42-44

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Influence of hydrogen coverage on Si(111) substrate on the growth of GaN buffer layer2007

    • Author(s)
      Y.Matsuo, Y.Kangawa, R.Togashi, K.Kakimoto, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.300

      Pages: 66-69

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermodynamic study on the role of hydrogen during hydride vapor phase epitaxy of Al_x Ga_<1-x>N2006

    • Author(s)
      H.Murakami, J.Kikuchi, Y.Kumagai, A.Koukitu
    • Journal Title

      physica status solidi (c) Vol.3

      Pages: 1457-1460

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermodynamics on hydride vapor phase epitaxy of AlN using AlCl_3 and NH_32006

    • Author(s)
      Y.Kumagai, K.Takemoto, J.Kikuchi, T.Hasegawa, H.Murakami, A.Koukitu
    • Journal Title

      physica status solidi (b) Vol.243

      Pages: 1431-1435

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Thermodynamic analysis of various types of hydride vapor phase epitaxy systems for high-speed growth of InN2006

    • Author(s)
      J.Kikuchi, Y.Nishizawa, H.Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      Japanese Journal of Applied Physics Vol.45

    • NAID

      10018632545

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Fe-doped semi-insulating GaN substrates prepared by hydride vapor-phase epitaxy using GaAs starting substrates2006

    • Author(s)
      Y.Kumagai, F.Satoh, R.Togashi, H.Murakami, K.Takemoto, J.Iihara, K.Yamaguchi, A.Koukitu
    • Journal Title

      Journal of Crystal Growth Vol.296

      Pages: 11-14

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A new system for growing thick InN layers by hydride vapor phase epitaxy

    • Author(s)
      J.Kikuchi, Y.Nishizawa, H.Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      physica status solidi (c) (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] In situ Gravimetric Monitoring of Decomposition Rate on the Surface of (0001) c-plane Sapphire for the High Temperature Growth of AIN

    • Author(s)
      K.Akiyama, T.Araki, H.Murakami, Y.Kumagai, A.Koukitu
    • Journal Title

      physica status solidi (c) (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] First-Principles Calculation and X-ray Absorption Fine Structure Analysis of Fe Doping Mechanism for Semi-Insulating GaN Growth on GaAs Substrates

    • Author(s)
      R.Togashi, F.Sato, H.Murakami, J.Iihara, K.Yamaguchi, Y.Kumagai, A.Koukitu
    • Journal Title

      physica status solidi (c) (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] HVPE growth of Al_xGa_<1-x>N ternary alloy using AlCl_3 and GaCl

    • Author(s)
      A.Koukitu, T.Yamane, F.Satoh, H.Murakami, Y.Kumagai
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Polarity dependence of AlN {0001} decomposition in flowing H_2

    • Author(s)
      Y.Kumagai, K.Akiyama, R.Togashi, H.Murakami, M.Takeuchi, T.Kinoshita, K.Takada, Y.Aoyagi, A.Koukitu
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Improvement of AlN crystalline quality with high epitaxial growth rate by hydride vapor phase epitaxy

    • Author(s)
      T.Nagashima, M.Harada, A.Hakomori, H, Yanagi, H.Fukuyama, Y.Kumagai, A.Koukitu, K.Takada
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Properties of Fe-doped semi-insulating GaN substrates for high-frequency device fabrication

    • Author(s)
      J.A.Freitas, Jr., J.G Tischler, J-H.Kim, Y.Kumagai, A.Koukitu
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] RF-MBE growth of 2H-AlN templates by using a mode change MEE on Si(111) for HVPE growth

    • Author(s)
      T.Ohachi, H.Shimomura, N.Yamabe, T.Yamane, Y.Kumagai, A.Koukitu
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Improvement of crystalline quality for Al- and N-polar AlN layers by modified flow-modulation MOCVD growth

    • Author(s)
      M.Takeuchi, H.Shimizu, R.Kajitani, K Kawasaki, T.Kinoshita, K.Takada, H.Murakami, Y.Kumagai, A.Koukitu, Y.Aoyagi
    • Journal Title

      Journal of Crystal Growth (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Presentation] Self epitaxial lateral overgrowth of HVPE-AlN layers on 6H-SiC(0001) substrates by the intentional formation of non c-axis oriented AlN grains2011

    • Author(s)
      H.Murakami, S.Sekiguchi, M.Ishizuki, R.Togashi, K.Takada, Y.Kumagai, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-VII) S3-4
    • Place of Presentation
      Koyasan, Wakayama, Japan 招待講演
    • Year and Date
      2011-06-16
    • Related Report
      2010 Final Research Report
  • [Presentation] GaAs(110)上半極性InN(10-13)成長における窒化及びバッファ層の効果2011

    • Author(s)
      趙賢哲, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第58回応用物理学関係連合講演会
    • Place of Presentation
      神奈川工科大学(神奈川県)
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] Crack in HVPE grown 2H-AlN films on AlN templates prepared by PA-MBE using AM-MEE2011

    • Author(s)
      T.Ohachi, N.Yamabe, Y.Yamamoto, H.Murakami, Y.Kumagai, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-18
    • Related Report
      2010 Annual Research Report
  • [Presentation] Formation of AlN on sapphire surface by high temperature heating in the mixed flow of H2 and N22011

    • Author(s)
      Y.Kumagai, T.Igi, M.Ishizuki, R.Togashi, H.Murakami, K.Takada, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-VII) S3-6
    • Place of Presentation
      Koyasan, Wakayama, Japan 招待講演
    • Year and Date
      2011-03-16
    • Related Report
      2010 Final Research Report
  • [Presentation] Possibility of InGaN HVPE growth with the high growth rate and the wide composition control2011

    • Author(s)
      A.Koukitu, K.Hanaoka, H.Murakami, Y.Kumagai
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Properties of thick freestanding AlN films prepared by hydride vapor phase epitaxy2011

    • Author(s)
      J.A.Freitas Jr., J.C.Culbertson, Y.Kumagai, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Preparation of freestanding AlN substrates by hydride vapor phase epitaxy using hybrid seed substrates2011

    • Author(s)
      T.Nagashima, A.Hakomori, T.Shimoda, K.Hironaka, Y.Kubota, T.Kinoshita, R.Yamamoto, H.Yanagi, Y.Kumagai, A.Koukitu, K.Takada
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Self epitaxial lateral overgrowth of HVPE-AlN layers on 6H-SiC (0001) substrates by the intentional formation of non c-axis oriented AlN grains2011

    • Author(s)
      H.Murakami, S.Sekiguchi, M.Ishizuki, R.Togashi, K.Takada, Y.Kumagai, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Formation of AlN on sapphire surface by high temperature heating in the mixed flow of H_2 and N_22011

    • Author(s)
      Y.Kumagai, T.Igi, M.Ishizuki, R.Togashi, H.Murakami, K.Takada, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Measurement of temperature dependent lattice constants of single crystal AlN and various starting substrates for the growth of AlN2011

    • Author(s)
      R.Togashi, M.Sakai, T.Nagashima, J.Tajima, H.Murakami, H.Morioka, T.Yamauchi, K.Saito, Y.Kumagai, K.Takada, A.Koukitu
    • Organizer
      7th International Workshop on Bulk Nitride Semiconductors (IWBNS-7)
    • Place of Presentation
      高野山大学(和歌山県)(招待講演)
    • Year and Date
      2011-03-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] 水素・窒素混合雰囲気における高温熱処理がc面sapphire基板表面に与える影響2010

    • Author(s)
      猪木孝洋, 石附正成, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      応用物理学会結晶工学分科会年末講演会
    • Place of Presentation
      学習院大学(東京都)
    • Year and Date
      2010-12-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] ハライド気相成長法を用いたsapphire(0001)基板上ZnO二段階成長2010

    • Author(s)
      篠塚俊克, 増田塁, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      応用物理学会結晶工学分科会年末講演会
    • Place of Presentation
      学習院大学(東京都)
    • Year and Date
      2010-12-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] 第一原理計算による窒化物表面へのV族原料吸着過程の解析2010

    • Author(s)
      鈴木ひかり, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      東北大学多元物質科学研究所窒化物ナノ・エレクトロニクス材料研究センター講演会
    • Place of Presentation
      東北大学(宮城県)
    • Year and Date
      2010-11-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] Control of in-plane Epitaxial Relationship of c-plane AlN Layers Grown on a-plane Sapphire Substrates by Hydride Vapor Phase Epitaxy2010

    • Author(s)
      Jumpei Tajima, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Kazuya Takada, Akinori Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2010 (IWN2010) A1.8
    • Place of Presentation
      Tampa, FL, U.S.A. 口頭発表
    • Year and Date
      2010-09-22
    • Related Report
      2010 Final Research Report
  • [Presentation] Control of in-plane Epitaxial Relationship of c-plane AlN Layers Grown on a-plane Sapphire Substrates by Hydride Vapor Phase Epitaxy2010

    • Author(s)
      Jumpei Tajima, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Kazuya Takada, Akinori Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2010 (IWN2010)
    • Place of Presentation
      Florida (USA)
    • Year and Date
      2010-09-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] First-principle Study on the Effect of Surface Hydrogen Coverage on the Adsorption Process of Ammonia on the InN(0001) Surfaces2010

    • Author(s)
      Hikari Suzuki, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2010 (IWN2010)
    • Place of Presentation
      Florida (USA)
    • Year and Date
      2010-09-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Influence of Hydrogen Gas on the Growth of Semi-polar InN2010

    • Author(s)
      Hyunchol Cho, Mayu Suematsu, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2010 (IWN2010)
    • Place of Presentation
      Florida (USA)
    • Year and Date
      2010-09-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] ハライド気相成長法によるc面sapphire基板上ZnO二段階成長2010

    • Author(s)
      篠塚俊克, 増田塁, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] 第一原理計算によるAlN(0001)表面へのV族原料吸着過程の解析2010

    • Author(s)
      鈴木ひかり, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] AlN及びAlN成長用初期基板の格子定数の温度依存性測定2010

    • Author(s)
      酒井美希, 永島徹, 田島純平, 富樫理恵, 村上尚, 森岡仁, 山内剣, 斎藤啓介, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] GaCl_3を用いたGaNのHVPE成長2010

    • Author(s)
      山根貴好, 花岡幸史, 近藤秀昭, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] a面sapphire基板上c面AlN HVPE成長における面内配向性の制御2010

    • Author(s)
      田島純平, 越前史, 富樫理恵, 村上尚, 高田和哉, 熊谷義直, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 非c軸配向AlNグレインを利用した6H-SiC(0001)基板上AlNのSelf-ELO2010

    • Author(s)
      関口修平, 石附正成, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 高温熱処理によるc面sapphire基板表面の窒化2010

    • Author(s)
      猪木孝洋, 石附正成, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] GaAs(110)基板上半極性InNのMOVPE成長2010

    • Author(s)
      村上尚, 趙賢哲, 末松真友, 富樫理恵, 熊谷義直, 纐纈明伯
    • Organizer
      第71回応用物理学会学術講演会
    • Place of Presentation
      長崎大学(長崎県)
    • Year and Date
      2010-09-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Growth of InN Films by Hydride Vapor Phase Epitaxy2010

    • Author(s)
      Yoshinao Kumagai, Rie Togashi, Hisashi Murakami, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth in Conjunction with The 14th International Conference on Vapor Growth and Epitaxy (ICCG-16/ICVGE-14) DK1
    • Place of Presentation
      Beijing, China 招待講演
    • Year and Date
      2010-08-12
    • Related Report
      2010 Final Research Report
  • [Presentation] Growth of InN Films by Hydride Vapor Phase Epitaxy2010

    • Author(s)
      Yoshinao Kumagai, Rie Togashi, Hisashi Murakami, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)(招待講演)
    • Year and Date
      2010-08-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] Effect of High NH_3 Input Partial Pressure on HVPE of InN on (0001) Sapphire Substrates2010

    • Author(s)
      Rie Togashi, Aya Otake, Yoshihiro Higashikawa, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2010-08-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] Thermodynamic Analysis on HVPE Growth of InGaN Ternary Alloy2010

    • Author(s)
      Koshi Hanaoka, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2010-08-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] Two-Step Growth of (0001) ZnO Single Crystal Layers on (0001) Sapphire Substrates by Halide Vapor Phase Epitaxy2010

    • Author(s)
      Rui Masuda, Rie Togashi, Hisashi Murakami Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2010-08-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] In situ gravimetric monitoring of hydrogen etching rates of GaN, sapphire and SiC2010

    • Author(s)
      Akinori Koukitu, Hisashi Murakami, Yoshinao Kumagai
    • Organizer
      The 16th International Conference on Crystal Growth in Conjunction with The 14th International Conference on Vapor Growth and Epitaxy (ICCG-16/ICVGE-14)
    • Place of Presentation
      Beijing, China 基調講演
    • Year and Date
      2010-08-09
    • Related Report
      2010 Final Research Report
  • [Presentation] In situ gravimetric monitoring of hydrogen etching rates of GaN, sapphire and SiC2010

    • Author(s)
      Akinori Koukitu, Hisashi Murakami, Yoshinao Kumagai
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)(基調講演)
    • Year and Date
      2010-08-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Growth of Semi-Polar InN Layer on GaAs(110) Surface by MOVPE2010

    • Author(s)
      Hisashi Murakami, Hyun-Chol Cho, Mayu Suematsu, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 16th International Conference on Crystal Growth (ICCG-16)
    • Place of Presentation
      Beijing (China)
    • Year and Date
      2010-08-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Hydride vapor-phase epitaxy of GaN using GaCl_32010

    • Author(s)
      Hisashi Murakami, Hyun-Chol Cho, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-16
    • Related Report
      2010 Annual Research Report
  • [Presentation] Temperature dependence of the lattice constants of single crystal AlN2010

    • Author(s)
      M.Sakai, J.Tajima, T.Nagashima, R.Togashi, H.Murakami, H.Morioka, T.Yamauchi, K.Saito, Y.Kumagai, K.Takada, A.Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Carrier Gas Dependence of a-Plane AlN Layer Growth on r-Plane Sapphire Substrates at Initial Stage by Hydride Vapor Phase Epitaxy2010

    • Author(s)
      Jumpei Tajima, Chikashi Echizen, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Kazuya Takada, Akinori Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] Effects of growth temperature on the crystal orientation of InN on GaAs(110) by metalorganic vapor phase epitaxy2010

    • Author(s)
      Hisashi Murakami, Hyun-Chol Cho, Mayu Suematsu, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Influence of GaN substrate polarity on InN growth by hydride vapor phase epitaxy2010

    • Author(s)
      R.Togashi, A.Otake, Y.Higashikawa, H.Murakami, Y.Kumagai, A.Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Influence of nucleation behavior in the initial growth stage on the HVPE growth of InN on sapphire (0001) substrates2010

    • Author(s)
      Y.Higashikawa, A.Otake, R.Togashi, H.Murakami, Y.Kumagai, A.Koukitu
    • Organizer
      29th Electronic Materials Symposium (EMS-29)
    • Place of Presentation
      ラフォーレ修善寺(静岡)
    • Year and Date
      2010-07-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Tri-halide vapor-phase epitaxy of GaN2010

    • Author(s)
      Takayoshi Yamane, Hisashi Murakami, Koshi Hanaoka, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 3rd International Symposium on Growth of III-Nitrides (ISGN-3)
    • Place of Presentation
      Montpellier, France
    • Year and Date
      2010-07-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] Theoretical study on the influence of surface hydrogen coverage on the initial growth process of AlN(0001) surface2010

    • Author(s)
      Hikari Suzuki, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 3rd International Symposium on Growth of III-Nitrides (ISGN-3)
    • Place of Presentation
      Montpellier, France
    • Year and Date
      2010-07-05
    • Related Report
      2010 Annual Research Report
  • [Presentation] Hydride Vapor Phase Epitaxy of AlN at High Temperatures on Freestanding (0001)AlN Substrates2010

    • Author(s)
      Y.Kumagai, J.Tajima, Y.Kubota, M.Ishizuki, R.Togashi, H.Murakami, T.Nagashima, K.Takada, A.Koukitu
    • Organizer
      2010 International Conference on Indium Phosphide and Related Materials (22nd IPRM) WeB3-3
    • Place of Presentation
      Kagawa, Japan 口頭発表
    • Year and Date
      2010-06-02
    • Related Report
      2010 Final Research Report
  • [Presentation] Hydride Vapor Phase Epitaxy of AlN at High Temperatures on Freestanding (0001)AlN Substrates2010

    • Author(s)
      Y.Kumagai, J.Tajima, Y.Kubota, M.Ishizuki, R.Togashi, H.Murakami, T.Nagashima, K.Takada, A.Koukitu
    • Organizer
      2010 International Conference on Indium Phosphide and Related Materials (22nd IPRM)
    • Place of Presentation
      高松シンボルタワー(香川県)
    • Year and Date
      2010-06-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Lattice constants of AlN in the range 25-1600℃ investigated by using a quasi-bulk crystal grown by hydride vapor phase epitaxy2010

    • Author(s)
      Yoshinao Kumagai, Miki Sakai, Jumpei Tajima, Toru Nagashima, Rie Togashi, Hisashi Murakami, Hitoshi Morioka, Tsutomu Yamauchi, Keisuke Saito, Kazuya Takada Akinori Koukitu
    • Organizer
      The 37th International Symposium on Compound Semiconductors (ISCS2010)
    • Place of Presentation
      高松シンボルタワー(香川県)
    • Year and Date
      2010-06-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 第一原理計算による気相成長法におけるGaN(0001)へのV族原料吸着過程の解析2010

    • Author(s)
      鈴木ひかり, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] InGaN三元混晶のHVPE成長に関する熱力学的考察2010

    • Author(s)
      花岡幸史, 田口悠嘉, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] サファイア(0001)基板上InN HVPE成長における成長初期核制御の効果2010

    • Author(s)
      東川義弘, 大竹斐, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-15
    • Related Report
      2010 Annual Research Report
  • [Presentation] 窒化物半導体のHVPE成長-表面反応解析から結晶成長へ-2010

    • Author(s)
      纐纈明伯, 村上尚, 熊谷義直
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)(基調講演)
    • Year and Date
      2010-05-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 単結晶AlNの格子定数の温度依存性2010

    • Author(s)
      酒井美希, 田島純平, 永島徹, 富樫理恵, 村上尚, 森岡仁, 山内剣, 斎藤啓介, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] r面sapphire基板上a面AlN HVPE成長初期過程におけるキャリアガスの影響2010

    • Author(s)
      田島純平, 富樫理恵, 村上尚, 高田和哉, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] GaN自立基板上InNハイドライド気相成長における基板極性の影響2010

    • Author(s)
      富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会第2回窒化物半導体結晶成長講演会
    • Place of Presentation
      三重大学(三重県)
    • Year and Date
      2010-05-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] r面sapphire基板上a面AlN HVPE成長におけるキャリアガスの影響2010

    • Author(s)
      田島純平, 越前史, 富樫理恵, 村上尚, 高田和哉, 熊谷義直, 纐纈明伯
    • Organizer
      第57回応用物理学関係連合講演会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      2010-03-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] 高温その場X線回折による単結晶AlNの格子定数の温度依存性測定2010

    • Author(s)
      酒井美希, 田島純平, 永島徹, 富樫理恵, 村上尚, 森岡仁, 山内剣, 斎藤啓介, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第57回応用物理学関係連合講演会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      2010-03-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] サファイア(0001)基板上InN HVPE成長におけるNH_3供給分圧変調効果2010

    • Author(s)
      東川義弘, 大竹斐, 足立裕和, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第57回応用物理学関係連合講演会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      2010-03-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] ハイドライド気相成長法によるGaN自立基板上InN成長の極性依存性2010

    • Author(s)
      富樫理恵, 足立裕和, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第57回応用物理学関係連合講演会
    • Place of Presentation
      東海大学(神奈川県)
    • Year and Date
      2010-03-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] HVPE Growth of Nitrides2010

    • Author(s)
      纐纈明伯, 熊谷義直
    • Organizer
      Growth of Bulk Nitrides
    • Place of Presentation
      東北大学(宮城県)
    • Year and Date
      2010-01-07
    • Related Report
      2009 Annual Research Report
  • [Presentation] AlN/sapphire界面ボイドの形成を利用したfreestanding AlN基板の作製2009

    • Author(s)
      内田健悟, 江夏悠貴, 石附正成, 田島純平, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      応用物理学会結晶工学分科会2009年年末講演会
    • Place of Presentation
      学習院創立百周年記念会館(東京都)
    • Year and Date
      2009-12-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] ハイドライド気相成長法によるsapphire(0001)基板上InN成長の成長温度依存性2009

    • Author(s)
      大竹斐, 足立裕和, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      応用物理学会結晶工学分科会2009年年末講演会
    • Place of Presentation
      学習院創立百周年記念会館(東京都)
    • Year and Date
      2009-12-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] 熱力学解析による化合物半導体の気相成長2009

    • Author(s)
      纐纈明伯, 熊谷義直
    • Organizer
      ワイドギャップ半導体の結晶成長技術-高度環境・エネルギー社会に向けて-
    • Place of Presentation
      東北大学(宮城県)
    • Year and Date
      2009-11-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] 水素雰囲気下におけるAlN(0001)面の分解過程の理論解析2009

    • Author(s)
      鈴木ひかり, ウリアナ・パニュコワ, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第39回結晶成長国内会議(NCCG-39)
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2009-11-14
    • Related Report
      2009 Annual Research Report
  • [Presentation] Si汚染の低減を目指したAlN-HVPE成長のための原料探索2009

    • Author(s)
      田口悠嘉, 鈴木ひかり, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第39回結晶成長国内会議(NCCG-39)
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2009-11-14
    • Related Report
      2009 Annual Research Report
  • [Presentation] AlN/sapphire界面ボイドの形成制御により自発分離したAlN自立基板の特性2009

    • Author(s)
      内田健悟, 江夏悠貴, 石附正成, 田島純平, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第39回結晶成長国内会議(NCCG-39)
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2009-11-13
    • Related Report
      2009 Annual Research Report
  • [Presentation] HVPE法を用いたsapphire(0001)基板上InN成長における成長温度の影響2009

    • Author(s)
      大竹斐, 足立裕和, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第39回結晶成長国内会議(NCCG-39)
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2009-11-13
    • Related Report
      2009 Annual Research Report
  • [Presentation] Temperature dependence of InN growth on(0001)sapphire substrates by atmospheric pressure hydride vapor phase epitaxy2009

    • Author(s)
      熊谷義直, 足立裕和 大竹斐, 東川義弘, 富樫理恵, 村上尚, 纐纈明伯
    • Organizer
      The 8th International Conference on Nitride Semiconductors(ICNS-8)
    • Place of Presentation
      ICC Jeju, Korea
    • Year and Date
      2009-10-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] Selective growth of InN on patterned GaAs(111)B substrate-Influence of InN decomposition at the interface-2009

    • Author(s)
      Hisashi Murakami, Hyun-Chol Cho, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      The 8th International Conference on Nitride Semiconductors(ICNS-8)
    • Place of Presentation
      ICC Jeju, Korea
    • Year and Date
      2009-10-19
    • Related Report
      2009 Annual Research Report
  • [Presentation] Theoretical investigation of the decomposition mechanism of AlN(0001)surface under a hydrogen atmosphere2009

    • Author(s)
      鈴木ひかり, ウリアナ・パニュコワ, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      The 8th International Conference on Nitride Semiconductors(ICNS-8)
    • Place of Presentation
      ICC Jeju, Korea
    • Year and Date
      2009-10-19
    • Related Report
      2009 Annual Research Report
  • [Presentation] XPS spectra of(0001)and(000-1)GaN surfaces2009

    • Author(s)
      Kazuyuki Noguchi, Tadashi Nozaki, Naoyuki Sakai, Yoshinao Kumagai, Akinori Koukitu, Tohru Honda
    • Organizer
      The 8th International Conference on Nitride Semiconductors(ICNS-8)
    • Place of Presentation
      ICC Jeju, Korea
    • Year and Date
      2009-10-19
    • Related Report
      2009 Annual Research Report
  • [Presentation] 高品位厚膜InGaN三元混晶成長の検討2009

    • Author(s)
      纐纈明伯
    • Organizer
      東北大プロジェクト研究会プログラム
    • Place of Presentation
      東北大学(宮城県)
    • Year and Date
      2009-10-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] 気相成長法におけるGaN(0001)の成長初期過程の理論解析2009

    • Author(s)
      鈴木ひかり, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第70回応用物理学会学術講演会
    • Place of Presentation
      富山大学(富山県)
    • Year and Date
      2009-09-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] sapphke(0001)基板上InN HVPE成長における成長温度依存性2009

    • Author(s)
      纐纈明伯, 田口悠嘉, 鈴木ひかり, 村上尚, 熊谷義直
    • Organizer
      第70回応用物理学会学術講演会
    • Place of Presentation
      富山大学(富山県)
    • Year and Date
      2009-09-10
    • Related Report
      2009 Annual Research Report
  • [Presentation] Investigation of source precursor for AlN-HVPE to decrease Si-contamination2009

    • Author(s)
      纐纈明伯, 田口悠嘉, 鈴木ひかり, 村上尚, 熊谷義直
    • Organizer
      6th International Workshop on Bulk Nitride Semiconductors(IWBNS-VI)
    • Place of Presentation
      Galindia Mazurski Eden, Poland
    • Year and Date
      2009-08-25
    • Related Report
      2009 Annual Research Report
  • [Presentation] Investigation of void formation beneath thin AlN layers by decomposition of sapphire substrates for self-separation of thick AlN layers grown by HVPE2009

    • Author(s)
      熊谷義直, 江夏悠貴, 石附正成, 富樫理恵, 田島純平, 村上尚, 高田和哉, 纐纈明伯
    • Organizer
      6th International Workshop on Bulk Nitride Semiconductors(IWBNS-VI)
    • Place of Presentation
      Galindia Mazurski Eden, Poland
    • Year and Date
      2009-08-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] Growth of 2H-AlN films on Si(111)grown by RF-MBE using an interface reaction epitaxy and AM-MEE for HVPE growth2009

    • Author(s)
      T.Ohachi, N.Yamabe, K.Ohkusa, H.Murakami, Y.Kumagai, A.Koukitu
    • Organizer
      6th International Workshop on Bulk Nitride Semiconductors(IWBNS-VI)
    • Place of Presentation
      Galindia Mazurski Eden, Poland
    • Year and Date
      2009-08-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] Spontaneous polarization effects in XPS spectra of GaN2009

    • Author(s)
      野口和之, 野崎理, 渡邉謙二, 纐纈明伯, 熊谷義直, 本田徹
    • Organizer
      第28回電子材料シンポジウム(EMS-28)
    • Place of Presentation
      ラフォーレ琵琶湖(滋賀県)
    • Year and Date
      2009-07-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] Two step growth of InN layer on SiO_2 patterned GaAs(111)B2009

    • Author(s)
      趙賢哲, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第28回電子材料シンポジウム(EMS-28)
    • Place of Presentation
      ラフォーレ琵琶湖(滋賀県)
    • Year and Date
      2009-07-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] Control of indium composition in coherently grown InGaN thin films2009

    • Author(s)
      屋山巴, 寒川義裕, 柿本浩一, 纐纈明伯
    • Organizer
      第28回電子材料シンポジウム(EMS-28)
    • Place of Presentation
      ラフォーレ琵琶湖(滋賀県)
    • Year and Date
      2009-07-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] HVPE AlN厚膜自発分離の最適化に向けたAlN/sapphire(0001)界面ボイドの拡張制御2009

    • Author(s)
      江夏悠貴, 石附正成, 田島純平, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会 第1回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京農工大学(東京都)
    • Year and Date
      2009-05-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] AlN-HVPE成長のための原料探索-熱力学解析-2009

    • Author(s)
      田口悠嘉, 鈴木ひかり, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会 第1回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京農工大学(東京都)
    • Year and Date
      2009-05-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] XPSを用いたGaN結晶の表面改質評価2009

    • Author(s)
      野口和之, 野崎理, 渡邉謙二, 纐纈明伯, 熊谷義直, 本田徹
    • Organizer
      日本結晶成長学会ナノエピ分科会 第1回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京農工大学(東京都)
    • Year and Date
      2009-05-15
    • Related Report
      2009 Annual Research Report
  • [Presentation] 成長モード制御によるMOVPE-InNの高品質化の検討2009

    • Author(s)
      趙賢哲, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会 第1回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京農工大学(東京都)
    • Year and Date
      2009-05-15
    • Related Report
      2009 Annual Research Report
  • [Presentation] 第一原理計算による水素雰囲気下におけるGaN(0001)の分解過程の解析2009

    • Author(s)
      鈴木ひかり, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      日本結晶成長学会ナノエピ分科会 第1回窒化物半導体結晶成長講演会
    • Place of Presentation
      東京農工大学(東京都)
    • Year and Date
      2009-05-15
    • Related Report
      2009 Annual Research Report
  • [Presentation] sapphire(0001)基板上HVPE AlN厚膜自発分離のための界面ボイド拡張制御2009

    • Author(s)
      江夏悠貴, 久保田有紀, 石附正成, 田島純平, 富樫理恵, 村上尚, 熊谷義直, 高田和哉, 纐纈明伯
    • Organizer
      第56回応用物理学関係連合講演会
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2009-04-01
    • Related Report
      2009 Annual Research Report
  • [Presentation] 熱力学解析によるAlN-HVPE成長のための原料探索-Si汚染の低減を目指して-2009

    • Author(s)
      田口悠嘉, 鈴木ひかり, 熊谷義直, 纐纈明伯
    • Organizer
      第56回応用物理学関係連合講演会
    • Place of Presentation
      筑波大学(茨城県)
    • Year and Date
      2009-04-01
    • Related Report
      2009 Annual Research Report
  • [Presentation] Investigation of Polarity Dependent InN{0001} Decomposition in N_2 and H_2 Ambient2008

    • Author(s)
      R. Togashi, H. Adachi, T. Kamoshita, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 20089
    • Place of Presentation
      Montreux, Switzerland
    • Year and Date
      2008-10-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Progress in Preparation of Freestanding AlN Substrates by Hydride Vapor Phase Epitaxy2008

    • Author(s)
      Y.Kumagai, J.Tajima, Y.Kubota, M.Ishizuki, R.Togashi, H.Murakami, T.Nagashima, K.Takada, A.Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2008 (IWN2008) We2b-C1
    • Place of Presentation
      Montreux Music and Convention Center, Montreux, Switzerland 招待講演
    • Year and Date
      2008-10-08
    • Related Report
      2010 Final Research Report
  • [Presentation] Progress in Preparation of Freestanding AIN Substrates by Hydride Vapor Phase Epitaxy2008

    • Author(s)
      Y. Kumagai, J. Tajima, Y Kubota, M. Ishizuki, R. Togashi, H. Murakami, T. Nagashima, K. Takada, A. Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2008
    • Place of Presentation
      Montreux, Switzerland
    • Year and Date
      2008-10-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] Controlled Formation of Voids at the AIN and Sapphire Interface by the Sapphire Decomposition for Self-Separation of AIN Layers2008

    • Author(s)
      J. Tajima, Y. Kubota, M. Ishizuki, T. Nagashima, R. Togashi, H. Murakami, Y. Kumagai, K. Takada, A. Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2008
    • Place of Presentation
      Montreux, Switzerland
    • Year and Date
      2008-10-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] Ab Initio Calculation for an Initial Growth Process of GaN on (0001) and (000-1) Surfaces by Vapor Phase2008

    • Author(s)
      H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      International Workshop on Nitride Semiconductors 2008
    • Place of Presentation
      Montreux, Switzerland
    • Year and Date
      2008-10-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] In situ gravimetric monitoring of surface reactions between sapphire and NH_<3>2008

    • Author(s)
      K. Akiyama, Y. Ishii, H. Murakami, Y., Kumagai, A. Koukitu
    • Organizer
      2nd International Symposium on Growth of III-Nitrides
    • Place of Presentation
      ラフォーレ修善寺, 伊豆, 静岡
    • Year and Date
      2008-07-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] Theoretical investigation on the decomposition process of GaN(0001) surface under a hydrogen atmosphere2008

    • Author(s)
      H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      2nd International Symposium on Growth of III-Nitrides
    • Place of Presentation
      ラフォーレ修善寺, 伊豆, 静岡
    • Year and Date
      2008-07-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] Preparation of a crack-free AIN template layer on sapphire substrate by hydride vapor phase epitaxy at 1450℃2008

    • Author(s)
      J. Tajima, H. Murakami, Y. Kumagai, K. Takada, A. Koukitu
    • Organizer
      2nd International Symposium on Growth of III-Nitrides
    • Place of Presentation
      ラフォーレ修善寺, 伊豆, 静岡
    • Year and Date
      2008-07-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] Improvements in crystalline quality of MOVPE-InN layers by facet controlling with hydrogen partial pressure2008

    • Author(s)
      H. Murakami, H.-C. Cho, Y. Kumagai, A. Koukitu
    • Organizer
      14th International Conference of Metalorganic Vapor Phase Epitaxy
    • Place of Presentation
      Metz, France
    • Year and Date
      2008-06-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] In situグラヴィメトリック法によるNH3雰囲気下(ooo1)c面サファイア表面反応メカニズム2008

    • Author(s)
      秋山和博, 石井泰寛, 村上 尚, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      千葉県、日本大学
    • Year and Date
      2008-03-29
    • Related Report
      2007 Annual Research Report
  • [Presentation] Theoretical study of the decomposition of AIN in a hydrogen atmospher2007

    • Author(s)
      U. Panyukova, H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      結晶工学分科会2007年年末講演会
    • Place of Presentation
      東京、学習院大学
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] NH_3雰囲気下(0001)c面サファイア表面反応過程のグラヴィメトリック法によるその場測定2007

    • Author(s)
      秋山和博, 石井泰寛, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      結晶工学分科会2007年年末講演会
    • Place of Presentation
      東京、学習院大学
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 第一原理計算による水素雰囲気下におけるGaN(0001)および(000-1)面の分解過程の解析2007

    • Author(s)
      鈴木ひかり, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      結晶工学分科会2007年年末講演会
    • Place of Presentation
      東京、学習院大学
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] 固体AICI_3を用いた光加熱HVPEによるAINの高温成長2007

    • Author(s)
      江里口健一, 平塚貴子, 村上尚, 熊谷義直, 大平重男, 纐纈明伯
    • Organizer
      結晶工学分科会2007年年末講演会
    • Place of Presentation
      東京、学習院大学
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] In situグラヴィメトリック法によるNH_3雰囲気下(ooo1)c面サファイア表面反応メカニズム2007

    • Author(s)
      秋山和博, 石井泰寛, 村上谷義直, 纐纈明伯
    • Organizer
      結晶工学分科会2007年年末講演会
    • Place of Presentation
      東京、学習院大学
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] Theoretical study of AlN decomposition processes in hydrogen atmosphere2007

    • Author(s)
      U. Panyukova, H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-10-17
    • Related Report
      2008 Self-evaluation Report
  • [Presentation] Theoretical study of AIN decomposition processes in hydrogen atmosphere2007

    • Author(s)
      U. Panyukova, H. Suzuki, R. Togashi, H. Murakami, Y. Kumagai, A. Koukitu
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-10-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] High temperature growth of AIN by solid source HVPE with local heating system2007

    • Author(s)
      Hisashi Murakami, Ken-ichi Eriguchi, Takako Hiratsuka, Uliana Panyukova, Yoshinao Kumagai, Akinori Koukutu
    • Organizer
      5th Intemational Workshop on Bulk Nitride Semiconductors
    • Place of Presentation
      Bahia, Brazil
    • Year and Date
      2007-09-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Hydride Vapor phase epitaxy of Al_xGa<1_x>N layers on GaN substrates2007

    • Author(s)
      Fumitaka Satoh, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      5th Intemational Workshop on Bulk Nitride Semiconductors
    • Place of Presentation
      Bahia, Brazil
    • Year and Date
      2007-09-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Polarity Control of 2H-AIN templates on Si (111) grown by RF-MBE using a mode change MEE for HVPE growth2007

    • Author(s)
      T. Ohachi, H. Shimomura, N. Yamabe, K. Oride, H. Murakami, Y. Kumagai, and A. Koukitu
    • Organizer
      5th Intemational Workshop on Bulk Nitride Semiconductors
    • Place of Presentation
      Bahia, Brazil
    • Year and Date
      2007-09-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Polarity-dependent growth of InN on Ga-and N-polar GaN surfaces byhydride vapor phase epitaxy2007

    • Author(s)
      Y. Kumagai, R. Togashi, T. Kamoshita, Y. Nishizawa, H. Murakami, A. Koukitu
    • Organizer
      5th Intemational Workshop on Bulk Nitride Semiconductors
    • Place of Presentation
      Bahia, Brazil
    • Year and Date
      2007-09-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] N-polar AIN sacrificial layers grown by MOCVD for free-standing AIN substrates2007

    • Author(s)
      Misaichi Takeuchi, Yoshinao Kumagai, Akinori Koukitsu, Yoshinobu Aoyagi
    • Organizer
      5th Intemational Workshop on Bulk Nitride Semiconductors
    • Place of Presentation
      Bahia, Brazil
    • Year and Date
      2007-09-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] Experimental and Ab-Initio Studies of Temperature Dependent InN Decomposition in Various Ambient2007

    • Author(s)
      Rie Togashi, Tomoki Kamoshita, Yuuki Nishizawa, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      7th International Conference on Nitride Semiconductors (ICNS-7)
    • Place of Presentation
      Nevada, Lasvegas, USA
    • Year and Date
      2007-09-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] Groth of thin Protective AIN Layers on Sapphire Substrates at 1065℃ for Hydride Vapor Phase Epitaxy of AIN above 1300℃2007

    • Author(s)
      Junpei Tajima, Yuki Kubota, Rie Togashi, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      7th International Conference on Nitride Semiconductors (ICNS-7)
    • Place of Presentation
      Nevada, Lasvegas, USA
    • Year and Date
      2007-09-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] Characterization of a Freestanding AIN Substrate Prepared by Hydride Vapor Phase Epitaxy2007

    • Author(s)
      Yoshinao Kumagai, Toru Nagashima, Hisashi Murakami. Kazuya Takada, Akinori Koukitu
    • Organizer
      7th International Conference on Nitride Semiconductors (ICNS-7)
    • Place of Presentation
      Nevada, Lasvegas, USA
    • Year and Date
      2007-09-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] HVPE法によるGaN基板上高品質Al_XGa_<1-x>N成長2007

    • Author(s)
      村上尚, 佐藤史隆, 秋山和博, 武藤弘, 柴田克幸, 山下宗修, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] in situ グラヴィメトリック法によるNH3雰囲気下(0001)c面サファイア分解速度の測定2007

    • Author(s)
      秋山和博, 石井泰寛, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] si(111)基板を初期基板に用いたHvPE法によるAIN自立基板の作製2007

    • Author(s)
      熊谷義直, 永嶋徹, 村上尚, 高田和哉, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] HVPE法によるSi-doped AlN成長の検討2007

    • Author(s)
      久保田有紀, 田島純平, 永嶋徹, 富樫理恵, 村上尚, 熊谷義直, 柳裕之, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] HVPE法によるsapphire基板上AIN高温成長における中間層導入の効果2007

    • Author(s)
      田島純平, 久保田有紀, 永嶋徹, 樫理恵, 村上尚, 熊谷義直, 柳裕之, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] 第一原理計算による水素雰囲気下におけるGaN(0001)および(000-1)面の分解過程の解析2007

    • Author(s)
      鈴木ひかり, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] 様々な雰囲気下におけるN極性lnN分解の温度依存性2007

    • Author(s)
      富樫理恵, 鴨下朋樹, 西澤雄樹, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] GaN{0001}基板を用いたInNHVPE成長における極性制御2007

    • Author(s)
      鴨下朋樹, 西澤雄樹, 富樫理恵, 村上尚, 熊谷義直, 纐纈明伯
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-06
    • Related Report
      2007 Annual Research Report
  • [Presentation] 原料分子制御HVPE法によるAIN,AIGaNおよびlnN成長2007

    • Author(s)
      纐纈明伯, 熊谷義直, 村上尚
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道、北海道工業大学
    • Year and Date
      2007-09-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] In situ Gravimetric Monitoring of Decomposition Rate on the Surface of (10-12)r-plane Sapphire for the High Temperature Growth of non-polar AIN2007

    • Author(s)
      Kazuhiro Akiyama, Hisashi Murakami, Yoshinao Kumagai, Akinori Koukitu
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-08-16
    • Related Report
      2007 Annual Research Report
  • [Presentation] HVPE growth of AIN and AIGaN2007

    • Author(s)
      Akinori Koukitu, Hisashi Murakami, Yoshinao Kumagai
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-08-16
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ab initio calculation of decomposition GaN (0001) and (000-1) Surfaces2007

    • Author(s)
      Hikari Suzuki, Rie Togashi, His ashi Murakami, Yoshinao Kumagai and Akinori Koukitu
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-08-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] Influence of hydrogen inputpartial pressure on the polarity of InN on GaAs (111)A grown by metalorganic vapor phase epitaxy2007

    • Author(s)
      Hisashi MURAKAMI, Jun-ichi TORII, Yoshinao KUMAGAI and Akinori KOUKITU
    • Organizer
      15th International Conference on Crystal Growth
    • Place of Presentation
      Utah, USA
    • Year and Date
      2007-08-13
    • Related Report
      2007 Annual Research Report
  • [Presentation] Decomposition Rate on the Surface of (10-12)r-plane Sapphire Monitored by in situ Gravimetric Monitoring Method for the High Temperature Growth of non-polar AIN2007

    • Author(s)
      Kazuhiro Akiyama, Hisashi Murakami, Yoshinao Kumagai and Akinori Koukitu
    • Organizer
      26th Electronic Materials Symposium (EMS-26)
    • Place of Presentation
      滋賀県ラフォーレ琵琶湖
    • Year and Date
      2007-07-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] High Temperature Growth of High-Quality AIN by Sohd-Source HVPE2007

    • Author(s)
      Ken-ichi Eriguchi, Hisashi Murakami, Uliana Panyukova, Yoshinao Kumagai, Shigeo Ohira, Akinori Koukitu
    • Organizer
      26th Electronic Materials Symposium (EMS-26)
    • Place of Presentation
      滋賀県ラフォーレ琵琶湖
    • Year and Date
      2007-07-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] Effect of hydrogen partial pressure on the growth of InN layers on GaAs (111)A surfaces by metalorganic vapor phase epitaxy2007

    • Author(s)
      Hisashi MURAKAMI, Hyun-Chol CH0, Yoshinao KUMAGAI and Akinori KOUKITU
    • Organizer
      26th Electronic Materials Symposium (EMS-26)
    • Place of Presentation
      滋賀県、ラフォーレ琵琶湖
    • Year and Date
      2007-07-05
    • Related Report
      2007 Annual Research Report
  • [Book] Technology of Gallium Nitride Crystal Growth Hydride Vapor Epitaxy of GaN2010

    • Author(s)
      A. Koukitu, Y. Kumagai
    • Publisher
      Springer
    • Related Report
      2010 Final Research Report
  • [Book] Springer Handbook of Crystal Growth2010

    • Author(s)
      Carl Hemmingsson, Bo Monemar, Yoshinao Kumagai, Akinori Koukitu
    • Publisher
      Springer
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Book] Technology of Gallium Nitride Crystal Growth Hydride Vapor Epitaxy of GaN2010

    • Author(s)
      A.Koukitu, Y.Kumagai
    • Total Pages
      326
    • Publisher
      Springer
    • Related Report
      2010 Annual Research Report
  • [Book] 熱力学解析による化合物半導体の気相成長 第79巻,第11号2009

    • Author(s)
      纐纈明伯, 熊谷義直
    • Publisher
      金属
    • Related Report
      2010 Final Research Report
  • [Book] 室化物基板および格子整合成長とデバイス特性(天野浩編集)・室化ガリウムのハイドライド気相成長2009

    • Author(s)
      纐纈明伯、熊谷義直
    • Total Pages
      225
    • Publisher
      シーエムシー出版
    • Related Report
      2009 Annual Research Report
  • [Book] 薄膜ハンドブック (第2版)2008

    • Author(s)
      日本学術振興会 薄膜第131委員会編
    • Total Pages
      1235
    • Publisher
      オーム社
    • Related Report
      2007 Annual Research Report
  • [Book] 電子物性・材料の事典2006

    • Author(s)
      纐纈明伯, (共著, 森泉豊栄, 岩本光正, 小田俊理, 山本寛, 川名明夫編)
    • Total Pages
      696
    • Publisher
      朝倉書店
    • Related Report
      2006 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://epitcs.chem.tuat.ac.jp/

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://www.tuat.ac.jp/

    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2018-03-28  

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