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Novel molecular layer epitaxy on a step-free III-nitride surface

Research Project

Project/Area Number 16H03862
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Crystal engineering
Research InstitutionNTT Basic Research Laboratories

Principal Investigator

Akasaka Tetsuya  日本電信電話株式会社NTT物性科学基礎研究所, 機能物質科学研究部, 主任研究員 (90393735)

Co-Investigator(Kenkyū-buntansha) 熊倉 一英  日本電信電話株式会社NTT物性科学基礎研究所, 機能物質科学研究部, 特別研究員 (00393736)
後藤 秀樹  日本電信電話株式会社NTT物性科学基礎研究所, 量子光物性研究部, 主席研究員 (10393795)
西中 淳一  日本電信電話株式会社NTT物性科学基礎研究所, 機能物質科学研究部, 研究員 (40774625)
鈴木 恭一  福岡工業大学, 工学部, 准教授 (20393770)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsエピタキシャル成長 / 半導体物性 / 量子井戸 / 窒化物半導体 / 結晶成長 / 光デバイス / 電子デバイス
Outline of Final Research Achievements

We have proposed a novel molecular layer epitaxy for fabricating group-III-nitride-based hetero-structures having atomically smooth hetero-interfaces. We have also optimized growth conditions of InN thin films in metalorganic vapor phase epitaxy and succeeded in fabricating N-face GaN/InN/GaN double hetero-structures. We have fabricated GaN/AlN hetero-structures and observed the Landau level quantization by gate tuning, which is a clear evidence showing the high-quality hetero-interface in the GaN/AlN hetero-structure.

Academic Significance and Societal Importance of the Research Achievements

窒化物半導体結晶は、シリコン等の従来の半導体結晶と比較して転位等の結晶欠陥密度が高いという問題があり、窒化物半導体薄膜の表面やヘテロ界面の平坦性が損なわれていた。本研究では、超平坦なヘテロ界面を形成可能な新原理に基づく結晶成長方法を提案した。また、結晶成長が極めて難しい窒化インジウムの結晶成長条件の最適化も行った。窒化インジウムと窒化ガリウム、および、窒化アルミニウムと窒化ガリウムとの組み合わせからなる高品質なヘテロ構造も作製した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (12 results)

All 2018 2017 2016 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] N-face (000-1) GaN/InN/GaN double heterostructures emitting near-infrared photoluminescence grown by metalorganic vapor phase epitaxy2018

    • Author(s)
      Akasaka Tetsuya、Schied Monika、Kumakura Kazuhide
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 8 Pages: 081001-081001

    • DOI

      10.7567/apex.11.081001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Landau level quantization with gate tuning in an AlN/GaN single heterostructure2018

    • Author(s)
      Suzuki Kyoichi、Akasaka Tetsuya
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 57 Issue: 11 Pages: 111001-111001

    • DOI

      10.7567/jjap.57.111001

    • NAID

      210000149750

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surface supersaturation in flow-rate modulation epitaxy of GaN2017

    • Author(s)
      T. Akasaka, C. H. Lin, H. Yamamoto, and K. Kumakura
    • Journal Title

      J. Cryst. Growth

      Volume: 印刷中 Pages: 821-826

    • DOI

      10.1016/j.jcrysgro.2016.11.107

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] N-face (000-1) GaN/InN/GaN double heterostructures emitting near-IR photoluminescence grown by metalorganic vapor phase epitaxy2018

    • Author(s)
      Akasaka Tetsuya、Schied Monika、Kumakura Kazuhide
    • Organizer
      International Workshop on Nitride Semiconductors 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] One-or two-monolayer-thick InN single quantum wells fabricated on step-free GaN surfaces by MOVPE2018

    • Author(s)
      Akasaka Tetsuya、Berry Andy、Lin Chia-Hung、Yamamoto Hideki
    • Organizer
      19th International Conference on Metalorganic Vapor Phase Epitaxy
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AlN/GaN単一ヘテロ接合の量子ホール効果とゲート制御2018

    • Author(s)
      鈴木 恭一、赤坂 哲也
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 窒素極性InN(000-1)ダブルヘテロ構造のMOVPE成長2018

    • Author(s)
      赤坂哲也,Monika Schied,熊倉一英
    • Organizer
      2017年第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] N-Face InN/GaN (000-1) Double Heterostructures Grown by Metalorganic Vapor Phase Epitaxy2016

    • Author(s)
      T. Akasaka, M. Schied, H. Yamamoto and K. Kumakura
    • Organizer
      International Workshop on Nitride Semiconductors (IWN2016)
    • Place of Presentation
      Orlando (USA)
    • Year and Date
      2016-10-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 窒素極性InN(000-1)薄膜結晶性のMOVPE成長温度依存性2016

    • Author(s)
      赤坂哲也,Monika Schied,熊倉一英
    • Organizer
      2016年秋季第77回応用物理学会秋季学術講演会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Surface supersaturation in flow-rate modulation epitaxy of GaN2016

    • Author(s)
      T. Akasaka, C. H. Lin, Y. Yamamoto, and K. Kumakura
    • Organizer
      18th International Conference on Crystal Growth and Epitaxy (ICCGE-18)
    • Place of Presentation
      名古屋国際会議場(愛知県名古屋市)
    • Year and Date
      2016-08-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Remarks] http://www.brl.ntt.co.jp/J/index.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所ホームページ

    • URL

      http://www.brl.ntt.co.jp/J/index.html

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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