Significant Enhancement of MgZnO Metal-Semiconductor-Metal Photodetectors via Coupling with Pt Nanoparticle Surface Plasmons

We proposed and demonstrated MgZnO metal-semiconductor-metal (MSM) ultraviolet photodetectors (UV) assisted with surface plasmons (SPs) prepared by the radio frequency magnetron sputtering deposition method. After the decoration of their surface with Pt nanoparticles (NPs), the responsivity of all t...

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Detalles Bibliográficos
Autores principales: Guo, Zexuan, Jiang, Dayong, Hu, Nan, Yang, Xiaojiang, Zhang, Wei, Duan, Yuhan, Gao, Shang, Liang, Qingcheng, Zheng, Tao, Lv, Jingwen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5988609/
https://www.ncbi.nlm.nih.gov/pubmed/29872934
http://dx.doi.org/10.1186/s11671-018-2573-7
Descripción
Sumario:We proposed and demonstrated MgZnO metal-semiconductor-metal (MSM) ultraviolet photodetectors (UV) assisted with surface plasmons (SPs) prepared by the radio frequency magnetron sputtering deposition method. After the decoration of their surface with Pt nanoparticles (NPs), the responsivity of all the electrode spacing (3, 5, and 8 μm) photodetectors were enhanced dramatically; to our surprise, comparing with them the responsivity of larger spacing sample, more SPs were gathered which are smaller than others in turn. A physical mechanism focused on SPs and depletion width is given to explain the above results.

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