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Sensitive optical sensors using amorphous oxide semiconductors

Research Project

Project/Area Number 21K18814
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionTokyo Institute of Technology

Principal Investigator

Ide Keisuke  東京工業大学, 元素戦略MDX研究センター, 助教 (70752799)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywordsアモルファス酸化物半導体 / ショットキーバリアダイオード / フォトダイオード / ダイオード
Outline of Research at the Start

申請者はこれまで、アモルファス酸化物半導体(AOS)の欠陥について基礎研究を行い、最近ではその理解に基づいて新規AOS材料の開発などを行ってきました。またそのように独自開発したAOSを用いることによって発光ダイオードの低温形成にも成功し、新たな応用先を提案してきました。本研究ではそれをさらに発展させ、独自のAOS材料を使った超高感度のフレキシブル光センサを実証することを目指します。

Outline of Final Research Achievements

Amorphous oxide semiconductors (AOS), such as amorphous In-Ga-Zn-O (a-IGZO), are known to have good semiconductor properties even fabricated at room temperature. We previously demonstrated that ultra-wide-gap amorphous semiconductors exceeding 4 eV can be fabricated at room temperature using gallium oxide. In a recent study, we have also succeeded in fabricating novel light-emitting diodes using ultra-wide-gap AOS. In this study, the a-GaO diodes were extended to fabricate high-voltage diodes and their photoresponsive characteristics were evaluated. AOS-based diodes with breakdown voltages exceeding -20V were realized, and quantum efficiencies exceeding 100 were observed.

Academic Significance and Societal Importance of the Research Achievements

本研究で高い量子効率の光センサをアモルファス半導体でも実現できることを示した。アモルファス半導体は、大面積に作ることが容易であるため、例えば超高感度なフラットパネルディテクタの実現につながる可能性がある。またメカニズムの詳細な検討から、さらに理想的なデバイスを作る指針も得ており学術的な意義のある研究となった。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (22 results)

All 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (15 results) (of which Int'l Joint Research: 9 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] Fudan University(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] National Sun Yat-sen University(その他の国・地域 台湾)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Fudan university(中国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Low-temperature-processable amorphous-oxide-semiconductor-based phosphors for durable light-emitting diodes2022

    • Author(s)
      Ide Keisuke、Watanabe Naoto、Katase Takayoshi、Sasase Masato、Kim Junghwan、Ueda Shigenori、Horiba Koji、Kumigashira Hiroshi、Hiramatsu Hidenori、Hosono Hideo、Kamiya Toshio
    • Journal Title

      Applied Physics Letters

      Volume: 121 Issue: 19 Pages: 192108-192108

    • DOI

      10.1063/5.0115384

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low Residual Carrier Density and High In-Grain Mobility in Polycrystalline Zn3N2 Films on a Glass Substrate2022

    • Author(s)
      Kaiwen Li, Atsushi Shimizu, Xinyi He, Keisuke Ide*, Kota Hanzawa, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Qun Zhang*, and Toshio Kamiya
    • Journal Title

      ACS Applied Electronic Materials

      Volume: 4 Issue: 4 Pages: 2026-2031

    • DOI

      10.1021/acsaelm.2c00181

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] アモルファス酸化物半導体における機能開拓の最前線2023

    • Author(s)
      井手啓介, 細野秀雄, 神谷利夫
    • Organizer
      第70回応用物理学会 春季学術講演会 シンポジウム
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 超高真空スパッタリング装置を用いた高移動度多結晶 Zn3N2 薄膜2022

    • Author(s)
      清水篤,井手啓介,片瀬貴義,平松秀典,細野秀雄,神谷利夫
    • Organizer
      薄膜材料デバイス研究会 第19回研究集会「新半導体材料・デバイス:SDGs実現へ向けて」
    • Related Report
      2022 Annual Research Report
  • [Presentation] ZnO中の水素複合欠陥2022

    • Author(s)
      HeXinyi,片瀬貴義,井手啓介,細野秀雄,神谷利夫
    • Organizer
      薄膜材料デバイス研究会 第19回研究集会「新半導体材料・デバイス:SDGs実現へ向けて」
    • Related Report
      2022 Annual Research Report
  • [Presentation] アモルファス 12CaO・7Al2O3 を用いた ReRAM2022

    • Author(s)
      門野太助,井手啓介,片瀬貴義,平松秀典,細野秀雄,神谷利夫
    • Organizer
      薄膜材料デバイス研究会 第19回研究集会「新半導体材料・デバイス:SDGs実現へ向けて」
    • Related Report
      2022 Annual Research Report
  • [Presentation] スパッタリング法によるアモルファス酸化ガリウム薄膜の作製とダイオー ド特性の評価2022

    • Author(s)
      嵯峨野太一,井手啓介,片瀬貴義,平松秀典,細野秀雄,神谷利夫
    • Organizer
      薄膜材料デバイス研究会 第19回研究集会「新半導体材料・デバイス:SDGs実現へ向けて」
    • Related Report
      2022 Annual Research Report
  • [Presentation] Suppressing Hydrogen Diffusion and Enhancing Reliability of Short-Channel InGaZnO Thin Film Transistors by Bottom-Gate Oxide Engineering2022

    • Author(s)
      K. Zhou,井手啓介,片瀬貴義,神谷利夫,B. Huang,P. Yen,T. Chang,S. M. Sze
    • Organizer
      薄膜材料デバイス研究会 第19回研究集会「新半導体材料・デバイス:SDGs実現へ向けて」
    • Related Report
      2022 Annual Research Report
  • [Presentation] Local bonding structures in amorphous oxide semiconductors studied by DFT and machine-learning potential2022

    • Author(s)
      Liwei Li,井手啓介,片瀬貴義,細野秀雄,神谷利夫
    • Organizer
      第60回日本セラミックス協会 セラミックス基礎科学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Electronic Structures and Defects Analysis of Amorphous Oxide Semiconductor toward IGZO Display Application2022

    • Author(s)
      Keisuke Ide
    • Organizer
      International Display Workshops
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Transport properties of Zn3N2 investigated by ionic liquid gated electric-double-layer transistors2021

    • Author(s)
      Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Zhang Qun, Toshio Kamiya
    • Organizer
      Materials Research Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication and characterization of resistive random-access memory device using amorphous 12CaO Al2O32021

    • Author(s)
      Tasuke Kadono, Keisuke Ide, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya
    • Organizer
      Materials Research Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Room-temperature fabrication of ionic liquid gated Zn3N2 electric double layer transistors with non-degenerate channel electron density2021

    • Author(s)
      Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Zhang Qun, Toshio Kamiya
    • Organizer
      2021 International Conference on Solid State Devices and Materials (SSDM 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of hydrogen doping on transport property of ultrawide bandgap amorphous oxide semiconductor, amorphous Ga-O2021

    • Author(s)
      Keisuke Ide, Yukari Kasai, Akihiro Kato, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya
    • Organizer
      The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Zn3N2 electric double layer transistor by ionic liquid gating2021

    • Author(s)
      Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Qun Zhang, Toshio Kamiya
    • Organizer
      The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rare-earth and transition metal doping for amorphous oxide semiconductor2021

    • Author(s)
      K. Ide, H. Hosono, T. Kamiya
    • Organizer
      Material Research Meeting 2021,
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Present status of amorphous oxide semiconductor: Electronic defects and material development2021

    • Author(s)
      K. Ide, H. Hosono, T. Kamiya
    • Organizer
      ISPlasma/IC-PLANTS2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 神谷研究室

    • URL

      https://www.msl.titech.ac.jp/~tkamiya

    • Related Report
      2022 Annual Research Report
  • [Remarks] 神谷研究室HP

    • URL

      https://www.msl.titech.ac.jp/~tkamiya/

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2024-01-30  

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