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Correlated oxides/atomically thin semiconductors heterostructures for steep-slope transistors applications

Research Project

Project/Area Number 17K14658
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Electronic materials/Electric materials
Research InstitutionOsaka University

Principal Investigator

Yamamoto Mahito  大阪大学, 産業科学研究所, 助教 (00748717)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords原子薄膜半導体 / 強相関酸化物 / 二次元材料 / 急峻スロープトランジスタ / ヘテロ構造 / 相転移材料 / 二酸化バナジウム / 遷移金属ダイカルコゲナイド / 六方晶窒化ホウ素 / スティープスロープ / 電子デバイス / 強相関エレクトロニクス / ナノ材料
Outline of Final Research Achievements

Steep-slope switching is one of the most important challenges toward the realization of the low power consumption transistors. Here we demonstrated steep-slope transistors based on heterostructures of correlated oxides that show a large resistance change due to the phase transition and atomically thin semiconductors that can be transferred onto any surfaces. In particular, we fabricated transistors by employing vanadium dioxide as an contact electrode and tungsten diselenide as a channel. In the heterostructure transistor, we observed steep-slope switching, resulting from the thermal phase transition of vanadium dioxide.

Academic Significance and Societal Importance of the Research Achievements

今後テクノロジーが持続的に発展するためには、テクノロジーの根幹であるトランジスタのさらなる低消費電力化が必要不可欠である。しかし、従来のシリコンを基盤としたMOSFETではその低消費電力化に理論的限界があった。本研究では、強相関酸化物と原子薄膜半導体とのヘテロ構造を用いた新原理トランジスタにおいて、将来的に社会実装に資する低消費電力動作を実現したことに社会的意義がある。一方、強相関酸化物/原子薄膜半導体ヘテロ構造は新奇物性の発現と場となる可能性も大いにあり、本研究はその作製指針を提示した点において学術的に意義がある。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (24 results)

All 2019 2018 2017

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (16 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Broad range thickness identification of hexagonal boron nitride by colors2019

    • Author(s)
      Yuto Anzai, Mahito Yamamoto, Shingo Genchi, Kenji Watanabe, Takashi Taniguchi, Shuhei Ichikawa, Yasufumi Fujiwara, Hidekazu Tanaka
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 5 Pages: 055007-055007

    • DOI

      10.7567/1882-0786/ab0e45

    • NAID

      210000135695

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of vanadium dioxide thin films on hexagonal boron nitride flakes as transferrable substrates2019

    • Author(s)
      Shingo Genchi, Mahito Yamamoto, Koji Shigematsu, Shodai Aritomi, Ryo Nouchi, Teruo Kanki, Kenji Watanabe, Takashi Taniguchi, Yasukazu Murakami, Hidekazu Tanaka
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 2857-2857

    • DOI

      10.1038/s41598-019-39091-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gate-Tunable Thermal Metal-Insulator Transition in VO2 Monolithically Integrated into a WSe2 Field-Effect Transistors2019

    • Author(s)
      M. Yamamoto, R. Nouch, T. Kanki, A. N. Hattori, K. Watanabe, T. Taniguchi, K. Ueno and H. Tanaka
    • Journal Title

      ACS Appl. Mater. and Inter.

      Volume: 11 Issue: 3 Pages: 3224-3230

    • DOI

      10.1021/acsami.8b18745

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Correlation between Ni Valence and Resistance Modulation on a SmNiO3 Chemical Transistor2019

    • Author(s)
      D. Kawamoto, A. N. Hattori, M. Yamamoto, X. L. Tan, K. Hattori, H. Daimon, and H. Tanaka
    • Journal Title

      ACS Appl. Electron. Mater. 1 (2019) 82-87

      Volume: 1 Issue: 1 Pages: 82-87

    • DOI

      10.1021/acsaelm.8b00028

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Layer-by-Layer Oxidation Induced Electronic Properties in Transition-Metal Dichalcogenides2018

    • Author(s)
      Soumya Ranjan Das, Katsunori Wakabayashi, Mahito Yamamoto, Kazuhito Tsukagoshi, Sudipta Dutta
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 122 Issue: 29 Pages: 17001-17007

    • DOI

      10.1021/acs.jpcc.8b05857

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pronounced photogating effect in atomically thin WSe2 with a self-limiting surface oxide layer2018

    • Author(s)
      Mahito Yamamoto, Keiji Ueno, Kazuhito Tsukagoshi
    • Journal Title

      Applied Physics Letters

      Volume: 112 Issue: 18 Pages: 181902-181902

    • DOI

      10.1063/1.5030525

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 酸化物・原子層物質ハイブリッドによる新奇デバイスの創製2018

    • Author(s)
      山本真人、田中秀和
    • Journal Title

      金属

      Volume: 88 Pages: 112-117

    • Related Report
      2017 Research-status Report
  • [Journal Article] Virtual substrate method for nanomaterials characterization2017

    • Author(s)
      Da Bo、Liu Jiangwei、Yamamoto Mahito、Ueda Yoshihiro、Watanabe Kazuyuki、Cuong Nguyen Thanh、Li Songlin、Tsukagoshi Kazuhito、Yoshikawa Hideki、Iwai Hideo、Tanuma Shigeo、Guo Hongxuan、Gao Zhaoshun、Sun Xia、Ding Zejun
    • Journal Title

      NATURE COMMUNICATIONS

      Volume: 8 Issue: 1 Pages: 15629-15629

    • DOI

      10.1038/ncomms15629

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 六方晶窒化ホウ素上VO2の金属絶縁体相転移に伴う抵抗変化の素子サイズ依存性2019

    • Author(s)
      玄地真悟、山本真人、神吉輝夫、渡邊賢司、谷口尚、田中秀和1
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Growth and characterization of VO2 on hexagonal boron nitride2019

    • Author(s)
      S. Genchi , M. Yamamoto, T. Kanki, K. Watanabe, T. Taniguchi and H. Tanaka
    • Organizer
      22th SANKEN International Symposium 2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] Carrier injection from VO2 into MoS2 and WSe22019

    • Author(s)
      Mahito Yamamoto, Ryo Nouchi, Teruo Kanki, Azusa N. Hattori, Shu Nakaharai, Kenji Watanabe, Takashi Taniguchi, Yutaka Wakayama, Keiji Ueno, Hidekazu Tanaka
    • Organizer
      Annual Meeting of the Physical Society of Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Color thickness identification of hexagonal boron nitride supportedo on a transfer polymer2019

    • Author(s)
      Shingo GENCHI, Koji SHIGEMATSU, Shodai ARITOMI, Mahito YAMAMOTO, Teruo KANKI, Kenji WATANABE, Takashi TANIGUCHI, Yasukazu MURAKAMI, Hidekazu Tanaka
    • Organizer
      The 22nd SANKEN International Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth and characterization of VO2 on hexagonal boron nitride2018

    • Author(s)
      S. Genchi , M. Yamamoto, T. Kanki, K. Watanabe, T. Taniguchi and H. Tanaka
    • Organizer
      5th Interactive Materials Science Cadet International Symposium 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Steep-Slope Transistors Based on 2D Semiconductors Contacted with the Phase-Change Material VO22018

    • Author(s)
      Mahito Yamamoto,Teruo Kanki, Azusa Hattori, Ryo Nouchi, Kenji Watanabe, Takashi Taniguchi, Keiji Ueno, Hidekazu Tanaka
    • Organizer
      2018 MRS Spring Meeting and Exbit
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 転写用ポリマー上における六方晶窒化ホウ素膜厚の光学的同定2018

    • Author(s)
      安西勇人、山本真人、渡邊賢司、谷口尚、田中秀和
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 六方晶窒化ホウ素上におけるVO2薄膜の成長と評価(II)2018

    • Author(s)
      玄地真悟、重松晃次、有冨翔太、山本真人、神吉輝夫、渡邊賢司、谷口尚、村上恭和、田中秀和
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effective resistance modulation in VO2 by gating through hexagonal boron nitride2018

    • Author(s)
      Yuto ANZAI, Mahito YAMAMOTO, Teruo KANKI, Kenji WATANABE, Takashi TANIGUCHI, Hidekazu TANAKA
    • Organizer
      The 21st Sanken International Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Growth and characterization of VO2 on hexagonal boron nitride2018

    • Author(s)
      Shingo GENCHI, Mahito YAMAMOTO, Teruo KANKI, Kenji WATANABE, Takashi TANIGUCHI, Hidekazu TANAKA
    • Organizer
      The 21st Sanken International Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Non-Thermionic Switching in an Atomically Thin WSe2 Transistor with the Phase-Change Material VO2 Contact2018

    • Author(s)
      Mahito Yamamoto, Teruo Kanki, Azusa Hattori, Ryo Nouchi, Kenji Watanabe, Takashi Taniguchi, Keiji Ueno, Hidekazu Tanaka
    • Organizer
      APS March Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 六方晶窒化ホウ素上におけるVO2薄膜の成長と評価2018

    • Author(s)
      玄地 真悟、山本 真人、神吉 輝夫、渡邊 賢司、谷口 尚、田中 秀和
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 六方晶窒化ホウ素をゲート絶縁体として用いたVO2 FETにおける高効率抵抗変調2018

    • Author(s)
      安西 勇人、山本 真人、神吉 輝夫、渡邊 賢司、谷口 尚、松本 和彦、田中 秀和
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] SmNiO3-EDLTにおけるワイドレンジ精密抵抗変調制御2018

    • Author(s)
      川本 大喜、服部 梓、山本 真人、田中 秀和
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] 自己制御表面酸化によるWSe2原子層トランジスタの高受光感度化2017

    • Author(s)
      山本 真人、上野 啓司、塚越 一仁
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
  • [Presentation] VO2/原子層半導体ヘテロ構造を用いた急峻スロープトランジスタ2017

    • Author(s)
      山本 真人、神吉 輝夫、服部 梓、野内 亮、谷口 尚、渡邉 賢司、上野 啓司、田中 秀和
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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