歪誘起液相分子吸着脱離特性の制御技術の確立とマルチ分子検出センサの開発

应变诱导液相分子吸附/解吸特性控制技术建立及多分子检测传感器开发

• 批准号: 22KJ0215
• 负责人: QIAO XIANGYU
• 金额: $ 1.09万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KJ0215/
• 关键词: graphene; gas sensor; strain; sensitivity; selectivity

In the past year. Samples have been successfully developed to verify the effect of strain on the gas sensing performance of graphene-based gas sensors. The sensors were fabricated using chemical vapor deposition (CVD) on copper substrates and transferred onto a flexible substrate for controlled bending. The gas sensing performance of the samples was characterized by measuring the electrical resistance of the graphene film under different gas concentrations. The results showed that the sensors had good sensitivity to NO2 and NH3. Furthermore, the response of the graphene gas sensors to 1 ppm of NO2 and 10 ppm of NH3 was found to increase under compressive strain, indicating that the effect of strain can enhance the gas sensing performance of graphene sensors.

在过去的一年中。已成功开发了样品，以验证应变对基于石墨烯的气体传感器气体传感性能的影响。使用化学蒸气沉积（CVD）在铜底物上制造传感器，并将其转移到柔性基板上以进行受控弯曲。样品的气体传感性能的特征是在不同的气体浓度下测量石墨烯膜的电阻。结果表明，传感器对NO2和NH3具有良好的敏感性。此外，发现石墨烯气体传感器对1 ppm的NO2和10 ppm的NH3的响应在压缩应变下增加了，这表明应变的作用可以增强石墨烯传感器的气体传感性能。

项目成果

Strain-Induced Change of Gas Adsorption Properties of Graphene and its Application to a Gas Sensor

• DOI: 10.23919/icep58572.2023.10129780
• 发表时间: 2023-04
• 期刊: 2023 International Conference on Electronics Packaging (ICEP)
• 作者: Xiangyu Qiao;Meng Yin;Ken Suzuki;H. Miura

Improvement of the gas sensitivity of a CNT/graphene hybrid structure sensor by the application of strain

通过施加应变提高CNT/石墨烯混合结构传感器的气体灵敏度

• 发表时间: 2022
• 作者: Nagaashi;Y.;Nakamura;A.;長足友哉，中村昭子，長谷川直，和田浩二;長足友哉，古川善博，中村昭子;Qiao Xiangyu
• 通讯作者: Qiao Xiangyu