• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Innovative research on electronic properties in alloy semiconductors

Research Project

Project/Area Number 17K05498
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics I
Research InstitutionWakayama University

Principal Investigator

Shinozuka Yuzo  和歌山大学, 学内共同利用施設等, 名誉教授 (30144918)

Co-Investigator(Kenkyū-buntansha) 秋元 郁子  和歌山大学, システム工学部, 准教授 (00314055)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords化合物半導体 / 混晶 / バンド構造制御 / 電子状態理論 / キャリア / 有効質量 / サイクロトロン共鳴 / 電子状態の理論 / 電子状態 / バンド構造 / キャリア移動度
Outline of Final Research Achievements

By extending the IQB theory proposed by the applicant, we have developed a theory that can calculate the electronic states of a novel mixed crystal system (II-VI) 1-x (III-V) x. Specifically, the composition ratio dependence of the pseudo-band structure in the electronic state was determined for (ZnO) 1-x (InN) x. The results could explain to some extent the experimental results obtained by Itagaki et al. of Kyushu University. In addition, the initial growth mechanism of the thin film was theoretically investigated based on the first-principles calculation. We have shown that the cyclotron resonance method using X-band (9.6 GHz) and Q-band (34 GHz) microwaves can derive the carrier scattering time up to the high temperature side. It was also confirmed that high-frequency microwaves can be used for observation up to higher temperatures.

Academic Significance and Societal Importance of the Research Achievements

III-V族などの化合物半導体は混晶化することで、電子状態を連続的に制御することが可能となる材料系である。しかしながら混晶化による電子状態バンドの現れ方やキャリアの特性変化については未だに統一的な理解ができていない。本研究では、波動関数の振幅を組成比に応じて統計的に変動させるInteracting Quasi-Band (IQB)理論を基に価電子帯と伝導帯の変容を統一した枠組みの中で解析した。種閃亜鉛鉱型およびウルツ鉱型混晶の電子状態は3種のタイプに分類できることを示し、素子応用の際に要求される最適な物性値をもつ混晶半導体材料を作り出すバンドエンジニアリングの指導原理の基礎が得られた。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Study on Initial Growth Mechanism of (ZnO)1-x(InN)x Using First-Principles Calculation2020

    • Author(s)
      R. Furuki, M. Oda, Y. Shinozuka
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 59 Issue: SG Pages: SGGK11-SGGK11

    • DOI

      10.7567/1347-4065/ab658e

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electronic structure of (ZnO)1?x (InN) x alloys calculated by interacting quasi-band theory2019

    • Author(s)
      Furuki Ryota、Oda Masato、Shinozuka Yuzo
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 58 Issue: 2 Pages: 0210021-8

    • DOI

      10.7567/1347-4065/aaf56f

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Note on Electronic Structures in Alloy Semiconductors2021

    • Author(s)
      Yuzo Shinozuka
    • Organizer
      The 8th Asian Conference on Crystal Growth and Crystal Technology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on Initial Growth Mechanism of (ZnO)1-x(InN)x Using First principles Calculation2019

    • Author(s)
      R. Furuki, M. Oda, Y. Shinozuka
    • Organizer
      2019 International Conference on Solid State Devices and Material
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] (ZnO)1-x(InN)xの結晶成長初期段階の第一原理計算による研究2019

    • Author(s)
      古木凌太、小田将人、篠塚雄三
    • Organizer
      第 80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Q-band ESR装置を用いた光キャリアのサイクロトロン共鳴2019

    • Author(s)
      秋元郁子、中暢子、松岡秀人
    • Organizer
      第58回電子スピンサイエンス学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Electronic structure of (ZnO)1-x(InN)x alloys calculated using IQB theory2018

    • Author(s)
      Ryota Furuki, Masato Oda, and Yuzo Shinozuka
    • Organizer
      CSW2018(Compound Semiconductor Week 2018, Boston, USA)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] (ZnO)1-x(InN)x混晶半導体の電子状態の理論2018

    • Author(s)
      古木凌太、小田将人、篠塚雄三
    • Organizer
      ワイドギャップ半導体光・電子デバイス162委員会第110回研究会・特別公開シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] (ZnO)x(InN)1-x混晶半導体の電子状態の理論2018

    • Author(s)
      古木 凌太、小田 将人、篠塚 雄三
    • Organizer
      2018年応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 化合物半導体電子状態の混晶化による変容2018

    • Author(s)
      篠塚 雄三
    • Organizer
      第13回励起ナノプロセス研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Electronic Structure of (ZnO)1-x(InN)x Alloys Calculated Using IQB Theory2018

    • Author(s)
      Ryota Furuki, Masato Oda and Yuzo Shinozuka
    • Organizer
      Compound semiconductor Week 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] General Trends in Electronic Structures of III-V and II-VI Alloys Based on the Interacting-Quasi-Band Theory2017

    • Author(s)
      Yuzo Shinozuka
    • Organizer
      Compound Semiconductor Week 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi