2022年4月
Effect of changing electronic states of molecules on frequency domain of graphene FETs
APPLIED PHYSICS EXPRESS
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- 巻
- 15
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.35848/1882-0786/ac564d
- 出版者・発行元
- IOP Publishing Ltd
The high surface sensitivity of low-dimensional carbon nanomaterials renders them good candidates for noise detection. Herein, Mg-porphyrin-modified graphene field-effect transistors (FETs) were fabricated, and parts-per-billion concentrations of NO2 were introduced to the devices. When the power spectrum density (PSD) of the Mg-porphyrin-modified graphene was measured in NO2, a specific PSD change near 1000 Hz was observed. This change could be due to the change in the electrical state of Mg-porphyrin caused by NO2 adsorption. This study reveals that frequency-domain measurement of graphene FETs can be used to evaluate changes in the electronic state of molecules.
- リンク情報
- ID情報
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- DOI : 10.35848/1882-0786/ac564d
- ISSN : 1882-0778
- eISSN : 1882-0786
- Web of Science ID : WOS:000766356600001