纳米片
材料科学
光电探测器
紫外线
光电流
光电导性
聚苯胺
光电子学
化学工程
纳米技术
复合材料
聚合物
工程类
聚合
作者
Xuanzhen Zhang,Yadong Feng,Fangbao Fu,Li Wang
出处
期刊:Polymers
[MDPI AG]
日期:2023-11-14
卷期号:15 (22): 4399-4399
被引量:5
标识
DOI:10.3390/polym15224399
摘要
High-performance ultraviolet photodetectors have important scientific research significance and practical application value, which has been the focus of researchers. In this work, we have constructed a highly photosensitive UV photodetector with a unique “sandwich” structure, which was mainly composed of two layers of ZnO nanosheet arrays and one layer of polyaniline (PANI). The results showed that the UV current of ZnO/PANI devices was 100 times higher than that of pure ZnO devices under the same UV irradiation time. At a 365 nm wavelength, the device had excellent photocurrent responsiveness and photoconductivity. This high performance was attributed to the large specific surface area of ZnO nanosheets and the p-n junction formed between P-type PANI nano-porous film and N-type ZnO nanosheets. This provides a solid theoretical basis for the application of ZnO nanosheets in ultraviolet detection, and possesses significance for the development of ultraviolet photodetectors.
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