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

Nanoscale Research Letters

卷:13

Yuhan Duan¹  Wei Zhang²  Jingwen Lv²  Nan Hu²  Dayong Jiang²  Xiaojiang Yang²  Qingcheng Liang²  Tao Zheng²  Zexuan Guo²  Shang Gao² 

[1] Research Center for Space Optical Engineering, Harbin Institute of Technology;

[2] School of Materials Science and Engineering, Changchun University of Science and Technology;

关键词: MgZnO film;    Ultraviolet photodetector;    SPs;    Electrode spacing;   

DOI  :  10.1186/s11671-018-2573-7

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown