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2021 年度 実施状況報告書

Development of Flexible Graphene-nanoribbon-base Biochemical Sensors with Highly Strain-controllable Selectivity and Reliability

研究課題

研究課題/領域番号 21K20393
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, 特任助教 (90911082)

研究期間 (年度) 2021-08-30 – 2023-03-31
キーワードGraphene nanoribbon / Biochemical sensor / Strain-induced / First-principles
研究実績の概要

The objective of this research project is to develop a theoretical model utilizing multi-scale simulation methods for clarifying the sensing mechanism under various gas environments and large range of cycled strain for designing highly sensitive and selective graphene nanoribbon based biochemical sensors with high reliability and long-term lifetime. This theoretical model is not only for clarifying the sensing mechanism and predicting the lifetime of graphene nanoribbon based biochemical sensors but also capable for analyzing other two-dimensional materials and thin metal films-based applications under the applying of cycled strain with different gas environments. The applicant has found the gradient Schottky barrier appeared around the interface between a metallic graphene nanoribbon and a semiconductive graphene nanoribbon. The gradient Schottky barrier shows an enhanced electronic performance on static properties and the dynamic properties of gradient Schottky barrier can be controlled by applying appropriate strain. The theoretical model possessing the behavior of localized gradient Schottky barrier based on the first-principles calculations was developed for investigating the charge transfer or electronic polarity of the electric field arise from the group of individual carbon atoms and adsorbed target molecules. The model was developed to understand the underlying sensing mechanism around the localized strain-field of target molecules and help for developing other low-dimensional biochemical sensors with high selectivity and sensitivity.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

Inspired by the group theory and field theory, a simple theoretical model was considered and developed to investigate the gas sensing mechanism at the localized adsorbed region of the graphene. The simple model was based on the simulation results by utilizing the first-principles calculations method. The strain-induced properties at the localized region were understood by considering the developed simple model. The simple model was applied on other atomic system as well and the analyzed results were reasonable. The simple model is believed to be available for other low dimensional biochemical sensing systems.

今後の研究の推進方策

The applicant is going to discovery a new type of low dimensional materials for further development of biochemical sensors with strain-controlled selectivity, mainly in experiments. Based on the developed simple model, not only the strain-induced change of sensing behavior of a new low dimensional materials would be investigated, but also the probability of understanding the synthesizing behavior of low dimensional materials would be considered.

  • 研究成果

    (5件)

すべて 2021

すべて 雑誌論文 (3件) (うち査読あり 2件) 学会発表 (2件) (うち国際学会 1件、 招待講演 1件)

  • [雑誌論文] Theoretical study on strain-controllable gradient Schottky barrier of dumbbell-shape graphene nanoribbon for highly sensitive strain sensors2021

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

      IEEE, 2021 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)

      巻: 1 ページ: 171-174

    • DOI

      10.1109/SISPAD54002.2021.9592548

    • 査読あり
  • [雑誌論文] Development of Highly Sensitive Strain Sensor Using Area-Arrayed Graphene Nanoribbons2021

    • 著者名/発表者名
      Suzuki Ken、Nakagawa Ryohei、Zhang Qinqiang、Miura Hideo
    • 雑誌名

      Nanomaterials

      巻: 11 ページ: 1701~1701

    • DOI

      10.3390/nano11071701

    • 査読あり
  • [雑誌論文] Electronic Band-Engineering of a Dumbbell-shaped Graphene Nanoribbon by the Application of Uniaxial Tensile Strain2021

    • 著者名/発表者名
      Goundar Jowesh Avisheik、Zhang Qinqiang、Suzuki Ken、Miura Hideo
    • 雑誌名

      IEEE, 2021 International Conference on Electronics Packaging (ICEP)

      巻: 1 ページ: 147-148

    • DOI

      10.23919/ICEP51988.2021.9451931

  • [学会発表] 高感度ひずみセンサー用のダンベル型グラフェンナノリボンのショットキーエネルギー障壁のひずみ誘起変化に関する理論的研究2021

    • 著者名/発表者名
      張 秦強
    • 学会等名
      プロセス・デバイス・回路シミュレーションおよび一般
    • 招待講演
  • [学会発表] Theoretical study on strain-controllable gradient Schottky barrier of dumbbell-shape graphene nanoribbon for highly sensitive strain sensors2021

    • 著者名/発表者名
      ZHANG Qinqiang
    • 学会等名
      2021 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD)
    • 国際学会

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公開日: 2022-12-28  

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