A High-Performance Self-Powered UV Photodetector Based on Self-Doping TIO2 Nanotube Arrays
Abstract
In this paper, we present a high-performance self-powered ultraviolet (UV) photodetector using electrochemical micro-porous-channel arrays based on a cost-effective and environment-friendly black TiO 2 nanotube arrays (BTNAs) and polysulfide (S 2- /S x 2- ) electrolyte. By self-doping TiO 2 the concentration and lifetime of UV photo-generated carriers are increased due to increasing oxygen vacancies and Ti 3+ defects in BTNAs, effectively enhancing the carrier transport and multiple exciton effect of carriers, and thus the self-powered UV photodetector based on electrochemical micro-porous-channel arrays demonstrates a high photoresponsivity of ~22 mA/W and high-speed photoresponse of ~4 ms in rise and decay time.
Metrics
Citation History
Topics
Related Documents
A high performance quasi-solid-state self-powered UV photodetector based on TiO2nanorod arrays
Yanru XieLin WeiQinghao LiYanxue ChenHong LiuShishen YanJun JiaoGuolei LiuLiangmo Mei
High-performance self-powered UV photodetectors based on TiO2nano-branched arrays
Yanru XieLin WeiQinghao LiYanxue ChenShishen YanJun JiaoGuolei LiuLiangmo Mei
Black TiO2nanotube arrays fabricated by electrochemical self-doping and their photoelectrochemical performance
Liyan ZhuHongchao MaHuibin HanYinghuan FuChun MaZhihui YuXiaoli Dong
High-Performance Self-Powered WSe2/ReS2 Photodetector Enabled via Surface Charge Transfer Doping
Yaxin ZhanZhangting WuPeiyu ZengWenhui WangYuan JiangHui ZhengPeng ZhengLiang ZhengYang Zhang
Self-powered, ultraviolet-visible perovskite photodetector based on TiO2 nanorods
Hai ZhouZehao SongTao PanHongwei LeiPengbin GuiJun MeiHao WangGuojia Fang