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III族窒化物半導体及び酸化亜鉛単結晶を接合した高輝度発光素子の開発

Research Project

Project/Area Number 05J11748
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionKanagawa Academy of Science and Technology (2007)
The University of Tokyo (2005-2006)

Principal Investigator

小林 篤  Kanagawa Academy of Science and Technology, フレキシブルデバイスプロジェクト, 研究員

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2005: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords窒化ガリウム / 酸化亜鉛 / PLD
Research Abstract

本研究の目的は、原子レベルで平坦化した酸化亜鉛(ZnO)基板上に高品質なIII族窒化物半導体(窒化ガリウム(GaN)、窒化インジウム(lnN)、窒化アルミニウム(AlN)、およびそれらの混晶)を成長し、高輝度紫外線発光素子や高効率照明への応用可能性を見出すことである。近年、短波長光デバイスへの応用が期待されているIII族窒化物半導体薄膜の高品質化を目指し、ZnOなどの格子整合基板上への窒化物薄膜成長に関する研究が精力的に行われている。しかしながら、ZnO基板表面構造、および窒化物薄膜/ZnOの界面構造を制御して窒化物薄膜を作製したという報告はほとんどない。我々は、パルスレーザー堆積法(PLD法)も用いることでZnO基板上に室温という従来の成長温度よりも1000℃程度低い成長温度でGaNのエピタキシャル成長が可能であることを見出した。室温においてエピタキシャル成長したGaNは極めて平坦な表面を有していることが分かった。このPLD法による室温成長技術は他のIII属窒化物半導体にも適用できることも見出し、紫外線発光を呈するAlNやAlGaN、緑〜赤色発光を呈するInGaNの高品質化にも成功した。さらに、室温成長技術はデバイス特性に優れた「無極性面、半極性面」GaNの結晶成長においても適用でき、過去に報告されている結晶品質を大きく凌駕する結晶を作製することに成功した。従来高品質化が困難であると考えられていた無極性面・半極性面GaNを利用した発光デバイス実用化への可能性を見出した。

Report

(3 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (28 results)

All 2007 2006 2005

All Journal Article (22 results) (of which Peer Reviewed: 3 results) Presentation (3 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Structural properties of GaN grown on Zn-face ZnO at room temperature2007

    • Author(s)
      小林篤
    • Journal Title

      Journal of Crystal Growth 305

      Pages: 70-73

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of a-plane GaN on lattice-matched ZnO substrates using a room-temperature buffer layer2007

    • Author(s)
      小林篤
    • Journal Title

      Applied Physics Letters 91

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Epitaxial growth of nonpolar AIN films on ZnO substrates using room temperature grown GaN buffer layers2007

    • Author(s)
      上野耕平
    • Journal Title

      Applied Physics Letters 91

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Room temperature epitaxial growth of m-plane GaN on lattice-matched Zn0 substrates2007

    • Author(s)
      小林篤
    • Journal Title

      Applied Physics Letters 90

      Pages: 41908-41908

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Polarity control of GaN grown on Zn0 (000-1) surfaces2006

    • Author(s)
      小林篤
    • Journal Title

      Applied Physics Letters 88

      Pages: 181907-181907

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Low temperature epitaxial growth of In0.25Ga0.75N on lattice-matched Zn0 by pulsed laser deposition2006

    • Author(s)
      小林篤
    • Journal Title

      Journal of Applied Physics 99

      Pages: 123513-123513

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Characteristics of InGaN with High In Concentrations Grown on Zn0 at Low Temperatures2006

    • Author(s)
      小林篤
    • Journal Title

      Japanese Journal of Applied Physics 45

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Characteristics of Single Crystal Zn0 Annealed in a Ceramic Zn0 Box and Its Application for Epitaxial Growth of GaN2006

    • Author(s)
      小林篤
    • Journal Title

      Japanese Journal of Applied Physics 45

      Pages: 5724-5724

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Room temperature epitaxial growth of AlGaN on Zn0 by pulsed laser deposition2006

    • Author(s)
      小林篤
    • Journal Title

      Applied Physics Letters 89

      Pages: 111918-111918

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Room-Temperature Epitaxial Growth of GaN on Atomically Flat MgA12204 Substrates by Pulsed-Laser Deposition2006

    • Author(s)
      李国強
    • Journal Title

      Japanese Journal of Applied Physics 45

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Investigation of the initial stage o fGaN epitaxial growth on 6H-SiC (0001) at room temperature2006

    • Author(s)
      金明姫
    • Journal Title

      Applied Physics Letters 89

      Pages: 31916-31916

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Heteroepitaxial growth of GaN on atomically flat LiTa03(0001) using low-temperature AIN buffer layers2006

    • Author(s)
      土屋洋輔
    • Journal Title

      Journal of Crystal Growth 293

      Pages: 22-22

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Growth temperature dependence of structural properties for single crystalline GaN films on MgA1204 substrates by pulsed laser deposition2006

    • Author(s)
      李国強
    • Journal Title

      Semiconductor Science and Technology 21

      Pages: 1026-1026

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Characteristics of GaN/ZrB2 Heterointerfaces Prepared by Pulsed Laser Deposition2006

    • Author(s)
      川口祐司
    • Journal Title

      Japanese Journal of Applied Physics 45

      Pages: 6893-6893

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effects of low-temperature-grown buffers on pulsed-laser deposition2006

    • Author(s)
      土屋洋輔
    • Journal Title

      Journal of Vacuum Science & Technology A 24

      Pages: 2021-2021

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Room-temperature epitaxial growth of AIN on atomically flat MgA1204 substrates2006

    • Author(s)
      李国強
    • Journal Title

      Applied Physics Letters 89

      Pages: 182104-182104

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Layer-by-Layer Growth of AIN on Zn0 (000-1) substrates at Room Temperaure2006

    • Author(s)
      上野耕平
    • Journal Title

      Japanese Journal of Applied Physics 45

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Epitaxial growth of InN on nearly lattice-matched (Mn,Zn)Fe_2O_42006

    • Author(s)
      太田実雄
    • Journal Title

      Solid, State Communications 137

      Pages: 208-208

    • Related Report
      2005 Annual Research Report
  • [Journal Article] GaN heteroepitaxial growth on LiNbO_3 (0001) step substrates with AlN buffer layers2005

    • Author(s)
      土屋洋輔
    • Journal Title

      Physica Status Solidi (a) 202

    • Related Report
      2005 Annual Research Report
  • [Journal Article] GaN heteroepitaxial growth on LiTaO_3 (0001) step substrates by pulsed laser deposition2005

    • Author(s)
      土屋洋輔
    • Journal Title

      Japanese Journal of Applied Physics 44 44

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Room-temperature epitaxial growth of GaN on lattice-matched ZrB_2 substrates by pulsed-laser deposition2005

    • Author(s)
      川口祐司
    • Journal Title

      Applied Physics Letters 87

      Pages: 221907-221907

    • Related Report
      2005 Annual Research Report
  • [Journal Article] III族窒化物室温成長バッファー層の評価2005

    • Author(s)
      太田実雄
    • Journal Title

      日本結晶成長学会誌 32

      Pages: 82-82

    • Related Report
      2005 Annual Research Report
  • [Presentation] High quality nonpolar and semipolar GaN films grown on lattice matched ZnO substrates2007

    • Author(s)
      小林篤
    • Organizer
      7th International conference on nitride semiconductors
    • Place of Presentation
      米国・ラスベガス
    • Year and Date
      2007-09-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] 格子整合ZnO基板上に成長した無極性面・半極性面GaNの特性評価2007

    • Author(s)
      小林篤
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道工業大学
    • Year and Date
      2007-09-04
    • Related Report
      2007 Annual Research Report
  • [Presentation] 格子整合ZnO基板上への無極性面GaN室温成長2007

    • Author(s)
      小林篤
    • Organizer
      第26回電子材料シンポジウム
    • Place of Presentation
      ラフォーレ琵琶湖
    • Year and Date
      2007-07-05
    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] III-V族 窒素化物層およびその製造方法2006

    • Inventor(s)
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Industrial Property Rights Holder
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Industrial Property Number
      2006-231031
    • Filing Date
      2006-08-28
    • Related Report
      2006 Annual Research Report
  • [Patent(Industrial Property Rights)] III-V族 窒素化物層およびその製造方法2006

    • Inventor(s)
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Industrial Property Rights Holder
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Industrial Property Number
      2006-231274
    • Filing Date
      2006-08-28
    • Related Report
      2006 Annual Research Report
  • [Patent(Industrial Property Rights)] AIN層およびAIGaN層並びにそれらの製造方法2006

    • Inventor(s)
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Industrial Property Rights Holder
      藤岡洋, 小林篤, 堀江秀善, 天内英貴, 長尾哲
    • Filing Date
      2006-07-28
    • Related Report
      2006 Annual Research Report

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Published: 2005-04-01   Modified: 2024-03-26  

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