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Clarification of mechanisms for photo-induced large conductivity change of graphene/diamond junctions and their device application

Research Project

Project/Area Number 21H01388
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionWaseda University

Principal Investigator

Kenji Ueda  早稲田大学, 理工学術院(情報生産システム研究科・センター), 教授 (10393737)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
Keywordsダイヤモンド半導体 / グラフェン / 光伝導度変調 / メモリスタ / 脳型光記憶 / ダイヤモンド / リザバー計算 / 光伝導度 / 光記憶 / 光認識 / デバイス / 光デバイス / 脳型記憶
Outline of Research at the Start

本研究は、近年申請者らが新規に見出した垂直配向グラフェン/ダイヤモンド接合
における巨大光伝導度変調現象に関して、その発現機構について接合界面の炭素構造や結合状態変化の観点から明らかにすると共に、その特徴的な光伝導特性を生かした新規光デバイスの開発を行う。

Outline of Final Research Achievements

Recently, we newly found that photoconductivity of vertically aligned graphene (VG)/diamond interfaces was drastically changed by photo-irradiation, and their photoconductivity values were memorized nonvolatility. In this study, we have tried clarifying the mechanism of the large photoconductivity change of VG/diamond interfaces and making their application for novel photo-devices.
As principal results for this study, following things were obtained. (1) interfacial structures of the VG/diamond junctions were clarified by high-resolution TEM measurements and their large photoconductivity change was found to be originated from redox reaction at the VG/diamond interfaces by movements of oxygen ions by electric field with light irradiation. (2) The VG/diamond interfaces were found to be used as novel neuromorphic devices which have photosensing, memory, and processing functions together.

Academic Significance and Societal Importance of the Research Achievements

本成果により、グラフェン(VG)/ダイヤモンド界面で多種多様な新機能・物性が現れる事及び、これらの新機能・物性を基にした新規デバイスの創製に繋がる事を示せた。また、本VG/ダイヤ素子を配列させてアレイ化する事で重要な画像(光)情報のみを記憶する脳機能模倣イメージセンサとして使える事も分かった為、本素子を更に改良して行く事で、将来的には重要な情報のみを選択的に記録する新型カメラ等の開発に繋がり、社会的にもインパクトが大きいと思われる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (27 results)

All 2024 2023 2022 2021 Other

All Journal Article (6 results) (of which Peer Reviewed: 5 results) Presentation (15 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results) Book (1 results) Remarks (5 results)

  • [Journal Article] Physical reservoir computing using vertically aligned graphene/diamond photomemristors2023

    • Author(s)
      Ito Yuga、Iwane Haruki、Jia Siyu、Ueda Kenji
    • Journal Title

      Applied Physics Express

      Volume: 16 Issue: 7 Pages: 071004-071004

    • DOI

      10.35848/1882-0786/ace8ef

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ダイヤモンド/グラフェン(炭素sp3-sp2)接合を用いたリザバー計算2023

    • Author(s)
      植田 研二
    • Journal Title

      ニューダイヤモンド

      Volume: 152 Pages: 24-26

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Dirac semimetal like transport features in high-quality Bi0.96Sb0.04 thin films2023

    • Author(s)
      Hadate Y.、Asano H.、Ueda K.
    • Journal Title

      Thin Solid Films

      Volume: 768 Pages: 139691-139691

    • DOI

      10.1016/j.tsf.2023.139691

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural insight using anomalous XRD into Mn2CoAl Heusler alloy films grown by magnetron sputtering, IBAS, and MBE techniques2022

    • Author(s)
      Tajiri Hiroo、Kumara Loku Singgappulige Rosantha、Sakuraba Yuya、Chen Zixi、Wang Jian、Zhou Weinan、Varun Kushwaha、Ueda Kenji、Yamada Shinya、Hamaya Kohei、Hono Kazuhiro
    • Journal Title

      Acta Materialia

      Volume: 235 Pages: 118063-118063

    • DOI

      10.1016/j.actamat.2022.118063

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optoelectronic synapses using vertically aligned graphene/diamond heterojunctions2021

    • Author(s)
      Mizuno Y.、Ito Y.、Ueda K.
    • Journal Title

      Carbon

      Volume: 182 Pages: 669-676

    • DOI

      10.1016/j.carbon.2021.06.060

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-Orbit-Torque Switching of Noncollinear Antiferromagnetic Antiperovskite Manganese Nitride Mn 3 Ga N2021

    • Author(s)
      T. Hajiri, K. Matsuura, K. Sonoda, E. Tanaka, K. Ueda, H. Asano
    • Journal Title

      Phys. Rev. Applied

      Volume: 16 Issue: 2 Pages: 024003-024003

    • DOI

      10.1103/physrevapplied.16.024003

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Direct growth of graphene nanostructures on stainless steel by plasma CVD2024

    • Author(s)
      S. Jia, J. Kameoka, F. Maeda, K. Ueda
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ダイヤモンド半導体の特徴とウェハ・デバイスの作製技術及び開発事例 第2講 ダイヤモンド半導体を用いた耐高温パワーデバイスの作製2023

    • Author(s)
      植田研二
    • Organizer
      And Tech Webセミナー講師
    • Related Report
      2023 Annual Research Report
  • [Presentation] グラフェン/ダイヤモンド光メモリスタによるセンサ内リザバーコンピューティング2023

    • Author(s)
      岩根東輝、植田研二
    • Organizer
      2023年 第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] グラフェン/ダイヤモンド光メモリスタを用いたニューロモルフィックデバイス開発2023

    • Author(s)
      植田研二
    • Organizer
      第40回 「センサマイクロマシンと応用システム」シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Graphene nanostructures grown on stainless steel by plasma chemical vapor deposition2023

    • Author(s)
      S. Jia, J. Kameoka, and K. Ueda
    • Organizer
      Workshop on Next-generation technology for AI application strategic industries, MASR 2023 (jointed to 17th International collaboration Symposium on Information, Production and Systems (ISIPS 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diamond/Graphene (carbon sp3-sp2) Heterojunctions for Neuromorphic Electronic Devices2023

    • Author(s)
      K. Ueda
    • Organizer
      MRS-fall meetings 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] グラフェン/ダイヤモンド光メモリスタを用いたリザバー計算2022

    • Author(s)
      伊藤 悠河、中水流 秋穂、植田 研二
    • Organizer
      2022年度第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 中水流 秋穂、畑野 敬史、生田 博志、植田 研二2022

    • Author(s)
      バリア高さ可変型パワーショットキーダイオード作製に向けたグラフェン/ダイヤモンド積層構造の作製
    • Organizer
      2022年度第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Reservoir computing using vertically aligned graphene/diamond heterojunctions2022

    • Author(s)
      Y. Ito, A. Nakazuru, and K. Ueda
    • Organizer
      2022 MRS fall meeting, On-site, virtual hybrid conference (Boston, USA)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Various optoelectronic memory functions of vertically aligned graphene/diamond heterojunctions2021

    • Author(s)
      K. Ueda, Y. Mizuno, and Y. Ito
    • Organizer
      International conference on new diamond and nano carbons 2020/2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optically-controllable synaptic characters of vertically aligned graphene/diamond junctions2021

    • Author(s)
      K. Ueda, Y. Mizuno, and Y. Ito
    • Organizer
      Memrisys 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Brain-mimic optoelectronic memory functions of vertically aligned graphene/diamond heterojunctions2021

    • Author(s)
      Y. Ito, Y. Mizuno, and K. Ueda
    • Organizer
      2021 MRS fall meeting,
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直配向グラフェン/ダイヤモンド接合の光記憶特性制御2021

    • Author(s)
      伊藤 悠河、水野 雄貴、植田 研二
    • Organizer
      2021年度第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 逆ペロブスカイト窒化物ノンコリニア反強磁性体 Mn3AN(A= Ga, Sn)薄膜における異常ホール効果2021

    • Author(s)
      加藤 大雅, 園田 航, 松浦 健人, 強 博文, 羽尻 哲也, 植田 研二, 浅野 秀文
    • Organizer
      2021年度第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ノンコリニア反強磁性体逆ペロブスカイト窒化物薄膜における異常ホール効果2021

    • Author(s)
      園田 航,加藤大雅,松浦健人,強 博文,羽尻哲也,植田研二,浅野秀文
    • Organizer
      第45回日本磁気学会学術講演会
    • Related Report
      2021 Annual Research Report
  • [Book] 次世代パワー半導体の開発・評価と実用化2022

    • Author(s)
      岩室 憲幸
    • Total Pages
      414
    • Publisher
      エヌ・ティー・エス
    • ISBN
      9784860437671
    • Related Report
      2022 Annual Research Report
  • [Remarks] 植田研究室ホームページ

    • URL

      https://k-ueda.w.waseda.jp/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 早稲田大学情報生産システム研究科内植田分紹介ページ

    • URL

      https://www.waseda.jp/fsci/gips/other/2022/04/01/22680/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 植田研究室ホームページ

    • URL

      http://www.f.waseda.jp/k-ueda/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] 早稲田大学情報生産システム研究科ホームページ

    • URL

      https://www.waseda.jp/fsci/gips/other/2022/04/01/22680/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Remarks] 早稲田大学研究者データベース

    • URL

      https://w-rdb.waseda.jp/html/100003275_ja.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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