High-performance ultraviolet photodetectors based on ZnO/Au/ZnO sandwich structure

被引：13

作者：

Liu, Rusheng ^{[1
,2
]}

Jiang, Dayong ^{[1
,2
]}

Zhang, Qingchao ^{[1
]}

Li, Rui ^{[1
]}

Duan, Qian ^{[1
]}

Qin, Jieming ^{[1
]}

Shen, Xiande ^{[1
]}

Hou, Jianhua ^{[1
]}

Zhao, Jianxun ^{[1
]}

Liang, Qingcheng ^{[1
]}

Gao, Shang ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Mat Sci & Engn, Changchun 130022, Peoples R China

[2] Minist Educ, Engn Res Ctr Optoelect Funct Mat, Changchun, Jilin Province, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2015年 / 48卷 / 27期

关键词：

sandwich structure; ultraviolet photodetectors; high responsivity; low dark current; UV-DETECTOR; ZNO; FABRICATION;

D O I：

10.1088/0022-3727/48/27/275104

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We developed sandwich ultraviolet photodetectors by a radio frequency magnetron sputtering method. As expected, the performances of the optimized ZnO/Au/ZnO sandwich photodetectors are much better than that of a metal-semiconductor-metal structure through combing high responsivity (enlarged similar to 60 times) and low dark current (reduced by more than two orders of magnitudes). To investigate the above phenomena, simulations of electric-field intensity distribution in the two structured photodetectors were performed using the ANSYS software. A proposed physical mechanism is used to explain the above results, which agree well with the simulations.

引用

页数：7

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