1. Piezo-phototronic effect for enhanced sensitivity and response range of ZnO thin film flexible UV photodetectors.
- Author
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Zhang, Wei, Jiang, Dayong, Zhao, Man, Duan, Yuhan, Zhou, Xuan, Yang, Xiaojiang, Shan, Chuncai, Qin, Jieming, Gao, Shang, Liang, Qingcheng, and Hou, Jianhua
- Subjects
THIN films ,PHOTODETECTORS ,PHOTOCURRENTS ,PHOTOELECTRICITY ,SCHOTTKY barrier ,SCHOTTKY barrier diodes ,OPTOELECTRONIC devices - Abstract
In this work, we fabricated a ZnO thin film flexible UV photodetector with a room-temperature process and investigated it with an emphasis on the influence of different external stresses. The photodetector exhibited enhancing photocurrent, sensitivity, responsivity, and response range with a tensile strain. This may originate from the improving collection ability of photogenerated carriers with the change of Schottky barrier height, which is induced by the piezo-phototronic effect. The as-obtained thin film flexible photodetector belongs to the family of photoresponse-controlled optoelectronic devices and has applications in a myriad of useful ways. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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