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

Autor: Zexuan Guo, Dayong Jiang, Nan Hu, Xiaojiang Yang, Wei Zhang, Yuhan Duan, Shang Gao, Qingcheng Liang, Tao Zheng, Jingwen Lv
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-6 (2018)
Druh dokumentu: article
ISSN: 1931-7573
1556-276X
DOI: 10.1186/s11671-018-2573-7
Popis: Abstract 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.
Databáze: Directory of Open Access Journals
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