| Autor: |
Liu, Qiaoli, Tian, Huijun, Zhang, Shifeng, Wang, Bo, Xu, Li, Jin, Yuxin, Hu, Anqi, Guo, Xia |
| Předmět: |
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| Zdroj: |
AIP Advances; Apr2022, Vol. 12 Issue 4, p1-4, 4p |
| Abstrakt: |
Graphene/semiconductor hybrid photodetectors have attracted much attention recently for their excellent optoelectronic properties. However, high background current and 1/f noise limit their sensitivity. In this paper, the phenomenon of photo-induced quantum capacitance was found based on the transfer-free graphene/Cu2O/Cu structure. Under illumination, the Fermi level in graphene can be modulated by the photogenerated holes trapped in Cu2O nanoparticles, which causes the capacitance response phenomenon. The maximum capacitance response of 104 F/W with the minimum detectable light power of 5.3 fW was achieved at room temperature. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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