A simple and transparent well-aligned ZnO nanowire array ultraviolet photodetector with high responsivity

被引：29

作者：

Yin, Lei ^{[1
]}

Ding, Hesheng ^{[1
]}

Yuan, Zhaolin ^{[1
,2
,3
]}

Huang, Wendeng ^{[1
]}

Shuai, Chunjiang ^{[1
]}

Xiong, Zhaoxin ^{[1
]}

Deng, Jianping ^{[2
]}

Lv, Tengbo ^{[1
]}

机构：

[1] Shaanxi Univ Technol, Sch Phys & Telecommun Engn, Hanzhong 723001, Peoples R China

[2] Shaanxi Univ Technol, Shaanxi Key Lab Ind Automat, Hanzhong 723001, Peoples R China

[3] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China

来源：

OPTICAL MATERIALS | 2018年 / 80卷

关键词：

Well-aligned ZnO nanowire arrays; Chemical bath deposition; Ultraviolet photodetector; Responsivity; NANOROD ARRAYS; PERFORMANCE; GROWTH; NANOPARTICLES;

D O I：

10.1016/j.optmat.2018.04.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Well-aligned zinc oxide (ZnO) nanowire arrays were grown on an interdigital patterned fluorine tin oxide (FTO)coated glass substrate by a facile chemical bath deposition at low temperature. Morphology, crystalline structure, and optical properties of the ZnO nanowire arrays were analyzed in detail. The results revealed that the ZnO nanowires had wurtzite structure, typically similar to 40-60 nm in diameter, and similar to 700-800 nm in length, a great number of highly uniform and dense nanowires grew vertically on the substrate to form the well-aligned ZnO nanowire arrays, which had very high optical transmission (> 86%) in the visible light region. In addition, the performance of ZnO nanowire arrays ultraviolet (UV) photodetector was systematically examined. The photosensitivity (S), responsivity (R), response and decay time of the photodetector were 703 at + 0.2 V, 113 A/W at +5 V, 23 s and 73 s respectively. Also, the photoresponse mechanism of the UV photodetector was illuminated in terms of the oxygen adsorption-photodesorption process.

引用

页码：149 / 153

页数：5

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