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Development of Alkaline Earth Metal-Mediated Molecular Beam Epitaxy Method and Construction of Novel Group IV Low-Dimensional Structures

Research Project

Project/Area Number 18K04883
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionThe University of Tokyo

Principal Investigator

Yasutake Yuhsuke  東京大学, 大学院総合文化研究科, 講師 (10526726)

Co-Investigator(Kenkyū-buntansha) 深津 晋  東京大学, 大学院総合文化研究科, 教授 (60199164)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsゲルマニウム / ゲルマナン / 分子線エピタキシー / インターカレート / トランジスタ / ゲルマネン / 分子線エピタキシ / インターカラント / 直接遷移 / カルシウム介在エピタキシ / Hexagonal / インターカラント介在エピタキシ / Germanene / Germanane / 電気二重層トランジスタ / Hexagonalゲルマニウム / Electron mobility / トポタクティック / 原子層構造 / Ⅳ族半導体 / カルシウム
Outline of Final Research Achievements

The search for electrical and optical functions of germanium (Ge), a group IV element with high affinity to the silicon platform, has been required. In this study, we have investigated the fabrication and characterization of novel low-dimensional Ge structures by the Ca-mediated molecular beam epitaxy (MBE) method, aiming to enhance Ge functions by constructing novel crystal structures. Through these researches, we have established (1) a method to fabricate chemically modified Ge atomic layer (germanane) structures by topotactic reaction using calcium-mediated Ge molecular beam epitaxy as a core technology, (2) fabrication and operation verification of germanane channel electric double-layer transistors, and (3) optical evaluation method for inter-valley scattering-mediated Ge-based materials. We have explored the functions of novel Ge low-dimensional structures through these studies.

Academic Significance and Societal Importance of the Research Achievements

次世代電子・光学材料として期待されているゲルマニウム(Ge)のさらなる機能探索として、化学修飾ゲルマニウム原子層(ゲルマナン)構造の作製手法の確立と物性評価を行った。作製したゲルマナン結晶はバルク単結晶に匹敵する優れた電気特性を示し、直接遷移型の光学特性を示した。これらの成果はGeのみならずシリコンを含めたⅣ族材料の高い潜在能力を示し、応用デバイス展開のみならず、新規Ⅳ族低次元に関する学理構築につながるものである。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (31 results)

All 2022 2021 2020 2019 2018 Other

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (20 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Remarks (8 results)

  • [Journal Article] Near‐Infrared‐III‐Absorbing and ‐Emitting Dyes: Energy‐Gap Engineering of Expanded Porphyrinoids via Metallation2020

    • Author(s)
      Wang Yue、Ogasahara Koki、Tomihama Daisuke、Mysliborski Radomir、Ishida Masatoshi、Hong Yongseok、Notsuka Yusuke、Yamaoka Yoshihisa、Murayama Tomotaka、Muranaka Atsuya、Uchiyama Masanobu、Mori Shigeki、Yasutake Yuhsuke、Fukatsu Susumu、Kim Dongho、Furuta Hiroyuki
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 59 Issue: 37 Pages: 16161-16166

    • DOI

      10.1002/anie.202006026

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Synthesis of a Black Dye with Absorption Capabilities Across the Visible-to-Near-Infrared Region: A MO-Mixing Approach via Heterometal Coordination of Expanded Porphyrinoid2020

    • Author(s)
      Wang Yue、Kai Hiroto、Ishida Masatoshi、Gokulnath Sabapathi、Mori Shigeki、Murayama Tomotaka、Muranaka Atsuya、Uchiyama Masanobu、Yasutake Yuhsuke、Fukatsu Susumu、Notsuka Yusuke、Yamaoka Yoshihisa、Hanafusa Mamiko、Yoshizawa Michito、Kim Gakhyun、Kim Dongho、Furuta Hiroyuki
    • Journal Title

      Journal of the American Chemical Society

      Volume: 142 Issue: 14 Pages: 6807-6813

    • DOI

      10.1021/jacs.0c01824

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ambipolar transistor action of germanane electric double layer transistor2019

    • Author(s)
      Yumiko Katayama, Ryoto Yamauchi, Yuhsuke Yasutake, Susumu Fukatsu, Kazunori Ueno
    • Journal Title

      Applied Physics Letters

      Volume: 115 Issue: 12

    • DOI

      10.1063/1.5094817

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Spectroscopic Study of Quantum-confinement in Ultrathin-body GeOI2022

    • Author(s)
      Y. Yasutake, T. Kohei, W. H. Chang, H. Ishii, T. Irisawa, T. Maeda, and S. Fukatsu
    • Organizer
      9th International SYmposium on Control of Semiconductor Interfaces
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光学的に捕らえたGe中の非平衡電子の超高速緩和過程とそれにともなう特異な物性2022

    • Author(s)
      安武裕輔、金崎順一、深津 晋
    • Organizer
      シリコン材料・デバイス研究会・有機エレクトロニクス研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 低密度光に誘起される有機無機ペロブスカイトCH3NH3PbBr3の構造相転移2021

    • Author(s)
      岩_ 悠、田中 陽、安武 裕輔、深津 晋
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スピン敏感フェムト秒蛍光励起相関分光2021

    • Author(s)
      安武 裕輔、深津 晋
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 有機無機ペロブスカイトの光誘起構造相転移2021

    • Author(s)
      田中 陽、安武 裕輔、深津 晋
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report 2020 Research-status Report
  • [Presentation] UTB-GeOIの量子化準位の顕微フォトリフレクタンス測定2021

    • Author(s)
      公平 拓見、安武 裕輔、張 文馨、石井 裕之、入沢 寿史、前田 辰郎、深津 晋
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Ultrathin-body GeOIにおける量子閉じ込め電子ラマン散乱2020

    • Author(s)
      公平 拓見、安武 裕輔、張 文馨、石井 裕之、入沢 寿史、内田 紀行、前田 辰郎、深津 晋
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Ge電子ラマン遷移の励起波長依存性2020

    • Author(s)
      安武 裕輔、深津 晋
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Ultrathin-body GeOIの円偏光フォトルミネセンス2020

    • Author(s)
      公平 拓見、安武 裕輔、張 文馨、石井 裕之、入沢 寿史、内田 紀行、前田 辰郎、深津 晋
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 有機無機ペロブスカイトにおける光誘起局所構造相転移2020

    • Author(s)
      田中 陽、安武 裕輔、深津 晋
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Relevance of hidden Valleys in the Dequenching of Room-temperature-emitting Ge Layers2019

    • Author(s)
      Tetsuya Sakamoto, Yuhsuke Yasutake, Junichi Kanasaki, Susumu Fukatsu
    • Organizer
      AVS 66th International Symposium & Exhibition
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hot Carrier Dynamics in Multi-valleyed Semiconductors2019

    • Author(s)
      Susumu Fukatsu
    • Organizer
      The 7th?International Conference on Small Science
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 伸長歪制御した面直ファブリペロー共振器中Geからの発光2019

    • Author(s)
      安武 裕輔、一色 史雄、 深津 晋
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Ultrathin-body GeOI の量子閉じ込め直接遷移端蛍光2019

    • Author(s)
      公平 拓見、安武 裕輔、張 文馨、石井 裕之、入沢 寿史、内田 紀行、前田 辰郎、深津 晋
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 有機無機ペロブスカイトのアンチストークス蛍光の温度依存性2019

    • Author(s)
      田中 陽、安武 裕輔、深津 晋
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 有機無機ペロブスカイト単結晶への光学的スピン注入2019

    • Author(s)
      Ren Zhaoli、安武 裕輔、深津 晋
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 一軸伸長歪印加によるGe電子ラマン遷移増強のその場観察2018

    • Author(s)
      安武 裕輔、一色 史雄、深津 晋
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 電気二重層トランジスタ(EDLT)を用いたゲルマナン薄膜の金属的伝導2018

    • Author(s)
      山内 遼斗、佐藤 洋平、片山 裕美子、安武 裕輔、深津 晋、上野 和紀
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Ge直接遷移化の試みと光機能探索2018

    • Author(s)
      安武 裕輔
    • Organizer
      第6回フォトニクスのための材料研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Electronic Raman Scattering in Ge Studied by Circular-Polarized Femtosecond Excitation Correlation Photoluminescence2018

    • Author(s)
      Yuhsuke Yasutake, Susumu Fukatsu
    • Organizer
      2018 MRS Fall Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] Google Scholar

    • URL

      https://scholar.google.com/citations?hl=ja&user=rGsaSy0AAAAJ&view_op=list_works&sortby=pubdate

    • Related Report
      2021 Annual Research Report
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/stm

    • Related Report
      2021 Annual Research Report
  • [Remarks] UTokyo FOCUS 二次元半導体ゲルマナンで高移動度のトランジスタを実現

    • URL

      https://www.u-tokyo.ac.jp/focus/ja/articles/z0508_00141.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] Publications

    • URL

      http://park.itc.u-tokyo.ac.jp/fkatz/Publications.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] グループホームページ

    • URL

      http://park.itc.u-tokyo.ac.jp/fkatz/index.html

    • Related Report
      2020 Research-status Report
  • [Remarks] 申請者Google Scholar個人ページ

    • URL

      https://scholar.google.co.jp/citations?user=rGsaSy0AAAAJ&hl=ja

    • Related Report
      2019 Research-status Report
  • [Remarks] 研究成果・情報発信用ホームページ

    • URL

      http://park.itc.u-tokyo.ac.jp/fkatz/

    • Related Report
      2019 Research-status Report
  • [Remarks] 研究室ホームページ

    • URL

      http://park.itc.u-tokyo.ac.jp/fkatz/members.html

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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