Dual-Polarity Response in Self-Powered ZnO NWs/Sb 2 Se 3 Film Heterojunction Photodetector Array for Optical Communication
作者: Bangsen OuyangHuiqi ZhaoZhong Lin WangYa Yang
作者单位: 1CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, PR China
2School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, PR China
3School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
4Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, PR China
刊名: Nano Energy, 2019
来源数据库: Elsevier Journal
DOI: 10.1016/j.nanoen.2019.104312
关键词: PhotodetectorDual-polaritySelf-poweredZnOSb 2 Se 3
英文摘要: ABSTRCT(#br)Self-powered photodetectors (PD) have great potential applications in visible light communication (VLC) systems due to their unique advantages such as energy saving and low cost, where color shift keying (CSK) is widely utilized to meet the requirements of non-negative light intensity modulation. However, at least two PDs with filters are needed to decode the optical signals, greatly increasing the device cost and complicating the communication system. Here, we report a new type of dual-polarity response PD with an adjustable polarity switching wavelength, where the output signals are positive and negative in long and short wavelength regions, respectively. The dual-polarity response is a consequence of the competition between photovoltaic (PV) effect of ZnO NWs/Sb 2 Se 3 film...
全文获取路径: Elsevier  (合作)