| Project/Area Number |
21K20393
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0301:Mechanics of materials, production engineering, design engineering, fluid engineering, thermal engineering, mechanical dynamics, robotics, aerospace engineering, marine and maritime engineering, and related fields
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| Research Institution | National Institute for Materials Science (2022)
Tohoku University (2021) |
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Principal Investigator |
ZHANG Qinqiang 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, NIMSポスドク研究員 (90911082)
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| Project Period (FY) |
2021-08-30 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | two-dimentional material / semiconductor / DFT calculation / vapor transport method / 2D materials / germanium monosulfide / optoelectronics / Graphene nanoribbon / Biochemical sensor / Strain-induced / First-principles / Strain-controlled / Molecule selectivity |
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| Outline of Research at the Start |
The present research is to develop a theoretical model for understanding the mechanism of strain-induced change of adsorption behavior in different gas environment conditions around the interface between metallic and piezoresistive graphene nano-ribbons via utilizing multi-scale simulation methods.
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| Outline of Final Research Achievements |
To assure the safety and reliability of the sustainable development of human society, it is important to develop miscellaneous electronic and optoelectronic applications for monitoring our daily environments timely. In this proposal, the strain-induced change of charge transfer between the two-dimensional (2D) sensing material and the target toxic gas molecules were investigated by using first-principles calculations and the sensing mechanism was clarified. In addition, a new type of 2D material with a direct bandgap was investigated. High quality single-crystal in size of several tens of micrometers was successfully synthesized by using a physical vapor transport method. The morphology of single-crystal and its anisotropic behaviors of electron-phonon interaction were observed. The new 2D material shows major potential for development of next-generation electronic and optoelectronic applications, such as transistors, biochemical sensors, photodetectors, and light-emitters.
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| Academic Significance and Societal Importance of the Research Achievements |
二次元層状半導体は最も魅力的な材料の一つとして、高性能、高信頼性、高効率な次世代バイオケミカルセンサーの開発に大きな潜在能力を持っている。次世代バイオケミカルセンサーの開発を加速するために、センシング原理の解明と新しい二次元材料の開発に関する研究は、基盤研究として重要であり、将来の研究者やエンジニアに役立ちがある。本研究開発したフレキシブルバイオケミカルセンサーが人間の皮膚につけられて、日常環境の常時監視が可能である。
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