Three-dimensional ZnO porous films for self-cleaning ultraviolet photodetectors

被引：10

作者：

Cao, Yuanzhi ^{[1
]}

Deng, Sunbin ^{[1
]}

Hu, Qiyi ^{[1
]}

Zhong, Qize ^{[1
]}

Luo, Qiu-Ping ^{[1
]}

Yuan, Longyan ^{[1
]}

Zhou, Jun ^{[1
]}

机构：

[1] HUST, Sch Physcis, WNLO, Wuhan 430074, Peoples R China

来源：

RSC ADVANCES | 2015年 / 5卷 / 104期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

CARBON NANOPARTICLES; CANDLE SOOT; SURFACES; DETECTORS; GROWTH;

D O I：

10.1039/c5ra13372f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three-dimensional (3D) ZnO porous films composed of an interconnected skeleton were fabricated successfully through atomic layer deposition method using carbon nanoparticles as template. After surface modification, they showed an excellent superhydrophobic property with a contact angle larger than 160 degrees and a sliding angle less than 1 degrees. Based on the superhydrophobic 3D ZnO porous films, self-cleaning ultraviolet photodetector devices were fabricated. The devices exhibited a rise time of 42.03 s, a recovery time of 5.84 s and a responsivity of 9 mA W-1 at a 5 V bias under a low light illumination of 14.38 mu W cm(-2). The mechanism for the enhanced ultraviolet photoresponse from ZnO porous films is discussed.

引用

页码：85969 / 85973

页数：5

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