Mg0.55Zn0.45O solar-blind ultraviolet detector with high photoresponse performance and large internal gain

被引：106

作者：

Hou, Y. N. ^{[1
]}

Mei, Z. X. ^{[1
]}

Liu, Z. L. ^{[1
]}

Zhang, T. C. ^{[1
]}

Du, X. L. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 10期

基金：

美国国家科学基金会;

关键词：

FILMS; ZNO;

D O I：

10.1063/1.3563705

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Schottky type metal-semiconductor-metal solar-blind ultraviolet detector was fabricated on high quality wurtzite Mg0.55Zn0.45O epitaxial film. Photoresponse spectra show a responsivity peak of 22 mA/W under 130 V bias. A sharp cutoff was recognized at a wavelength of 270 nm, and a temporal response measurement indicates a fast decay time of less than 500 ns. A large internal gain was observed and interpreted by a reduced Schottky barrier height model, which fits well with the experimental data. (C) 2011 American Institute of Physics. [doi:10.1063/1.3563705]

引用

页数：3

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