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王九镇同学的关于单层石墨烯/二氧化钛立方纳米棒阵列异质结紫外光电探测器的研究论文被Appl. Surf. Sci.接受发表


Dan-Dan Wang, Cai-Wang Ge, Guo-An Wu, Zhi-Peng Li, Jiu-Zhen Wang, Teng-Fei Zhang, Yong-Qiang Yu, Lin-Bao Luo*
Abstract:  Plasmonic optoelectronic devices based non-noble metal nanostructures (e.g. Al, In etc.) have recently received increasing research interest due to their relatively low fabrication cost and tunable plasmon wavelength. In this study, we present a new plasmonic red light nano-photodetector by decorating multi-layer graphene (MLG)-CdSe nanoribbon (CdSeNR) Schottky junction with highly ordered plasmonic copper nanoparticles (CuNPs) array, which exhibited obvious localized surface plasmon resonance in the range from 700-900 nm. Optoelectronic analysis reveals that the device metrics including switch ratio, the responsivity and the detectivity were considerably increased after functionalization with plasmonic CuNPs. Moreover, the response speed was fastened by nearly one order of magnitude. The observed optimization in device performance, according to theoretical simulation based on the finite element method (FEM) and experimental analysis, could be attributed to localized surface plasmon resonance (LSPR) induced hot electron injection. The above results signify that the present plasmonic CuNPs are equally important candidates for boosting the device performance of nano-optoelectronic devices.

J. Mater. Chem. C


 
 
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