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2020 年度 実績報告書

ダンベル型グラフェンナノリボンの電子物性解析に基づく高感度ひずみセンサの開発

研究課題

研究課題/領域番号 19J12755
研究機関東北大学

研究代表者

張 秦強  東北大学, 工学研究科, 特別研究員(DC2)

研究期間 (年度) 2019-04-25 – 2021-03-31
キーワードdumbbell-shape / graphene nanoribbon / strain-controlled / Schottky barrier / interface / strain sensor
研究実績の概要

The gradient Schottky barrier around the atomic seamless interface can be controlled by applying appropriate strain and the stable electronic performance of dumbbell-shape graphene nanoribbon (DS-GNR)-base strain sensors can be obtained regardless of the width of the graphene nanoribbon (GNR) in the sensing segment of DS-GNR. The optimized structure of DS-GNR with metallic-metallic interface around the jointed area exhibits stable piezoresistive property in the narrow segment at lower strain range. It is deemed to the disappearance of the Schottky barrier. However, the complicated strain-induced change behavior appeared in the metallic-semiconductive interface due to the existence of the gradient Schottky barrier around the jointed area at low strain range. The single GNR possesses a large strain range as proved by several previous researchers. In this study, the author found that the large gradient Schottky barrier can be minimized by applying an appropriate tensile strain and the stable performance of DS-GNR with metallic-semiconductive interface can be attained at a larger strain range.
The analysis results in this study indicate that it has a great potential to apply DS-GNRs for development of highly sensitive, stable, and reliable next-generation wearable strain sensors for real time health monitoring and smart point of care devices. The strain-induced change of electronic properties of DS-GNR can be applied on other specific applications such as bio-chemical sensors for gas- and viruses- detecting and artificial neuro network by mimicking the human synapse signal.

現在までの達成度 (段落)

令和2年度が最終年度であるため、記入しない。

今後の研究の推進方策

令和2年度が最終年度であるため、記入しない。

  • 研究成果

    (6件)

すべて 2020

すべて 雑誌論文 (3件) (うち査読あり 3件) 学会発表 (3件) (うち国際学会 2件)

  • [雑誌論文] THEORETICAL STUDY OF HETEROJUNCTION-LIKE ELECTRONIC PROPERTIES BETWEEN A SEMICONDUCTIVE GRAPHENE NANORIBBON AND A METALLIC GRAPHENE FOR HIGHLY SENSITIVE STRAIN SENSORS2020

    • 著者名/発表者名
      Qinqiang Zhang, Xiangyu Qiao, Masasuke Kobayashi, Ken Suzuki
    • 雑誌名

      Proceedings of The International Mechanical Engineering Congress and Exposition (IMECE) 2020

      巻: 2020-23782 ページ: 1-7

    • DOI

      10.1115/IMECE2020-23782

    • 査読あり
  • [雑誌論文] DEVELOPMENT OF A STRAIN-CONTROLLED GRAPHENE-BASED HIGHLY SENSITIVE GAS SENSOR2020

    • 著者名/発表者名
      Xiangyu Qiao, Qinqiang Zhang, Ken Suzuki
    • 雑誌名

      Proceedings of The International Mechanical Engineering Congress and Exposition (IMECE) 2020

      巻: 2020-23581 ページ: 1-7

    • DOI

      10.1115/IMECE2020-23581

    • 査読あり
  • [雑誌論文] 10.1115/IMECE2020-23782A First-principles Study on the Strain-induced Localiz10.1115/IMECE2020-23782ed Electronic Properties of Dumbbell-shape Graphene Nanoribbon for Highly Sensitive Strain Sensors2020

    • 著者名/発表者名
      Qinqiang Zhang, Ken Suzuki, Hideo Miura
    • 雑誌名

      Proceedings of 2020 International Conference on Simulation of Semiconductor Processes and Devices

      巻: 20116221 ページ: 379-38

    • DOI

      10.23919/SISPAD49475.2020.9241686

    • 査読あり
  • [学会発表] Theoretical Study of Heterojunction-Like Electronic Properties Between a Semiconductive Graphene Nanoribbon and a Metallic Graphene for Highly Sensitive Strain Sensors2020

    • 著者名/発表者名
      Qinqiang Zhang
    • 学会等名
      International Mechanical Engineering Congree and Exposition, American Society of Mechanical Engineers 2020
    • 国際学会
  • [学会発表] A First-principles Study on the Strain-induced Localized Electronic Properties of Dumbbell-shape Graphene Nanoribbon for Highly Sensitive Strain Sensors2020

    • 著者名/発表者名
      Qinqiang Zhang
    • 学会等名
      2020 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)
    • 国際学会
  • [学会発表] 第一原理解析に基づくダンベル型グラフェンナノリボン電子密度分布の歪み依存性の支配因子の検討2020

    • 著者名/発表者名
      張秦強
    • 学会等名
      日本機械学会2020年度年次大会

URL: 

公開日: 2021-12-27  

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