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Versatile and Quantitative Spectrometer of Nonradiative recombination centers by Using Two-Wavelength Excitation method

Research Project

Project/Area Number 14350002
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionSaitama University

Principal Investigator

KAMATA Norihiko  Saitama University, Faculty of Engineering, Prof., 工学部, 教授 (50211173)

Co-Investigator(Kenkyū-buntansha) ARAKAWA Yasuhiko  University of Tokyo, RCAST, Prof., 先端科学技術研究センター, 教授 (30134638)
SOMEYA Takao  University of Tokyo, Grad.Engineering, Assoc.Prof, 工学系研究科, 助教授 (90292755)
HONDA Zentaroh  Saitama University, Faculty of Engineering, Research Assoc., 工学部, 助手 (30332563)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 2004: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2003: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2002: ¥3,800,000 (Direct Cost: ¥3,800,000)
Keywordsphotoluminescence / nonradiative recombination center / GaN / UV-and blue-light emitting materials / quantum well / quantum dot / 量子井戸構造
Research Abstract

We exemplified the following research results during the project :
(1)By combining a tunable below-gap excitation source (Optical Parametric Oscillator) and a sensitive CCD camera etc., we realized more versatile system of two-wavelength excited photoluminescence(TWEPL) for wider materials.
(2)Inserting buffer layers with sufficient thickness, increasing quantum-well periods and utilizing modulation-doping were found to be effective for improving light emission efficiency through the characterization of GaN/AlGaN quantum wells grown by plasma-assisted MBE in Hannover University (Germany) and by our MOCVD technique.
(3)We observed directly the formation of a trap-level due to an UV light irradiation during the measurement. The BGE effect after the trap formation was explained well by our two-levels model.
(4)First detection of nonradiative centers in an InAs quantum dot has been done. Its temperature dependence is important for analyzing carrier dynamics in the quantum dot. In addition, a new trap level in a Y_2O_2S:Eu phosphor was resolved clearly by combining TWEPL with thermo-luminescence technique.
Thus our TWEPL spectrometer became a versatile way to characterize belowgap states in wider range of light emitting materials.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (22 results)

All 2005 2004 2003 2002 Other

All Journal Article (14 results) Book (1 results) Publications (7 results)

  • [Journal Article] Nonradiative centers InAs quantum dots revealed by two-wavelength excited photoluminescence2005

    • Author(s)
      N.Kamata, S.Saravanan, J.M.Z.Ocampo, Y.Arakawa
    • Journal Title

      Int.Conf.on Defects in Semiconductors

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effect of modulation-doping on luminescence properties of plasma assisted MBE-grown GaN/AlGaN quantum well2004

    • Author(s)
      N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.
    • Journal Title

      The European Phys.J.-Applied Physics 27

      Pages: 271-273

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] BaMgAl_<10>O_<17>:Eu^<2+>蛍光体の熱及び光ルミネッセンス2004

    • Author(s)
      馬峰治, 鎌田憲彦, 木島直人, 下村康夫, 小原秀彦
    • Journal Title

      埼玉大学地域共同研究センター紀要 No.4

      Pages: 75-78

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Effect of modulation-doping on luminescence properties of plasma assisted MBE-grown GaN/AlGaN quantum well2004

    • Author(s)
      N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.
    • Journal Title

      The European Phys.J.-Applied Phys. 27

      Pages: 271-273

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effect of Modulation-Doping on Luminescence Properties of Plasma Assisted MBE-Growm GaN/AlGaN Quantum Well2004

    • Author(s)
      N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.
    • Journal Title

      The European Phys.J.-Appl.Phys. 27

      Pages: 271-273

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Formation of Eu^<2+> in SiO_2 Al_2O_3 Glass During Thermal Treatment in Sol-Gel Process2004

    • Author(s)
      N.Kamata, K.Tosaka, Z.Honda, K.Yamada
    • Journal Title

      Jpn.J.Appl.Phys. 43

    • NAID

      10012705011

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence2003

    • Author(s)
      H.Klausing, N.Kamata, T.Someya, T.Arakawa et al.
    • Journal Title

      Techn.Digest,5^<th> Int, Conf.on Nitride Semiconductors 5

      Pages: 253-253

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Effect of modulation-doping on luminescence properties of plasma assisted MBE-grown GaN/AlGaN quantum well2003

    • Author(s)
      N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.
    • Journal Title

      10^<th> Int.Conf.on Defects : Recognition, Imaging and Physics in Semiconductors 10

      Pages: 35-35

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence2003

    • Author(s)
      H.Klausing, N.Kamata, T.Someya, Y.Arakawa et al.
    • Journal Title

      Phys.Stat.Sol.(c) 0

      Pages: 2658-2661

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence2003

    • Author(s)
      H.Klausing, N.Kamata, T.Someya, Y.Arakawa et al.
    • Journal Title

      Techn.Digest, 5^<th> Int, Conf.on Nitride Semiconductors 5

      Pages: 253-253

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Below-gap recombination dynamics in GaN revealed by time-resolved and two-wavelength excited photoluminescence2002

    • Author(s)
      N.Kamata, J.M.Z.Ocampo, T.Someya, Y.Arakawa et al.
    • Journal Title

      Materials Science and Engineering B91-92

      Pages: 290-293

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Temperature dependence of photoluminescence intensity change due to below-gap excitation in GaN2002

    • Author(s)
      N.Kamata, J.M.Z.Ocampo, T.Someya
    • Journal Title

      Inst.Phys.Conf.Ser. No.170

      Pages: 843-848

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Temperature dependence of photoluminescence intensity change due to below-gap excitation in GaN2002

    • Author(s)
      N.Kamata, J.M.Z.Ocampo, T.Someya, et al.
    • Journal Title

      Inst.Phys.Conf.Ser. No.170

      Pages: 843-848

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Nonradiative centers InAs quantum dots revealed by two-wavelength excited photoluminescence

    • Author(s)
      N.Kamata, S.Saravanan, J.M.Z.Ocampo, Y.Arakawa
    • Journal Title

      Proc.Int.Conf.on Defects in Semiconductors (accepted)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] 電子材料ハンドブック(木村忠正, 八百隆文, 奥村次徳, 豊田太郎編集)2005

    • Author(s)
      鎌田憲彦(3章編集主査)
    • Publisher
      朝倉書店(現在編集校正中)(編集中)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] H.Klausing, N.Kamata, T.Someya, Y.Arakawa et al.: "Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence"Techn.Digest, 5^<th> Int.Conf. on Nitride Semiconductors. 5. 253 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.: "Effect of modulation-doping on luminescence properties of plasma assisted MBE-grown GaN/AlGaN quantum well"10^<th> Int.Conf.on Defects : Recognition, Imaging and Physics in Semiconductors. 10. 35 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Klausing, N.Kamata, T.Someya, Y.Arakawa et al.: "Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence"Phys.Stat.Sol. (c). 0. 2658-2661 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Kamata, H.Klausing, T.Someya, Y.Arakawa et al.: "Effect of modulation-doping on luminescence properties of plasma assisted MBE-grown GaN/AlGaN quantum well"The European Phys.J.-Applied Physics. (in Print). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Kamata, J.M.Z.Ocampo, T.Someya, Y.Arakawa et al.: "Below-gap recombination dynamics in GaN revealed by time-resolved and two-wavelength excited photoluminescence"Materials Science and Engineering. B91-92. 290-293 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Kamata, J.M.Z.Ocampo, T.Someya: "Temperature dependence of photoluminescence intensity change due to below-gap excitation in GaN"Inst. Phys. Conf. Ser.. No.170. 843-848 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Kamata, J.M.Z.Ocampo, T.Someya, Y.Arakawa et al.: "Improved quality of plasma assisted MBE-grown GaN/AlGaN quantum wells revealed by two-wavelength excited photoluminescence"Int. Conf. on Nitride Semiconductors 2003. (to be presented).

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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