標題: Ultrahigh-Performance Self-Powered Flexible Photodetector Driven from Photogating, Piezo-Phototronic, and Ferroelectric Effects
作者: Shen, Tien-Lin
Chu, Yu-Wei
Liao, Yu-Kuang
Lee, Wen-Ya
Kuo, Hao-Chung
Lin, Tai-Yuan
Chen, Yang-Fang
電子物理學系
光電工程學系
光電工程研究所
Department of Electrophysics
Department of Photonics
Institute of EO Enginerring
關鍵字: ferroelectric;photogating;piezo-phototronic effects;self-powered UV photodetector
公開日期: 1-Jan-1970
摘要: Owing to the need for dynamic, real-time, and on-site data collection in internet of things applications, the realization of ultra-sensitive sensing networks with self-powered, flexible, and lightweight devices has become an important issue for the development of sensor systems. In this work, a novel, high-performance, self-powered photodetector is achieved through the combination of photogating, piezo-phototronic, and ferroelectric effect by incorporating a ferroelectric thin film of poly(vinylidene fluoride-co-trifluoroethylene) in a rationally designed device structure with suitable band alignment, which can modulate carrier transport behavior at the interface due to the internal electric field produced by light illumination, external strain, or voltage-poled dipole. This enables photocurrent and overall device performance to improve significantly. The unprecedented photodetector presented in this study has several merits, including mechanical flexibility and light weight that allow it to adapt to arbitrary surface topology; additionally, its self-powering capability and high reliability are urgently needed for the demanding functionality of devices for the development of next-generation optoelectronic devices, spanning from wearable communication to unattended harsh environments with a human-friendly interface.
URI: http://dx.doi.org/10.1002/adom.201901334
http://hdl.handle.net/11536/153410
ISSN: 2195-1071
DOI: 10.1002/adom.201901334
期刊: ADVANCED OPTICAL MATERIALS
起始頁: 0
結束頁: 0
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