Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO3 materials for a self-powered flexible photodetector system

doi:10.1016/j.nanoen.2020.105152

CORC > 兰州理工大学 > 兰州理工大学

	Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO3 materials for a self-powered flexible photodetector system
	Zhao, Kun 1,4; Ouyang, Bangsen 2,4; Bowen, Chris R.5; Yang, Ya 2,3,4
	2020-11-01
关键词	Barium titanate Ferroelectricity Photodetectors Photons Photovoltaic cells Photovoltaic effects Solar energyCurrent peak Electrical signal Flexible photodetectors Induced energy Photovoltaic systems Self-powered Sensing systems Temperature variation
卷号	77
DOI	10.1016/j.nanoen.2020.105152
英文摘要	Some ferroelectric materials have demonstrated both pyroelectric and photovoltaic effects for scavenging thermal and solar energies. However, how to couple pyroelectric and photovoltaic effects in ferroelectric materials remains a challenge. Here, a ferro-pyro-phototronic effect based on coupling pyroelectric and photovoltaic effects has been utilized to enhance the photocurrent in a ferroelectric BaTiO3-based flexible photodetector system. As compared with a purely photovoltaic system, the corresponding current peak and plateau were 451.9% and 17.2% higher in the coupled photovoltaic-pyroelectric system, respectively. The results can be explained by ferro-pyro-phototronic effect with an induced energy band bending. As a demonstration of its potential application, we developed a sensing system that is suitable for detecting and recognizing both light and temperature variations by recording the electrical signals mapped as an array. © 2020
会议录	Nano Energy
会议录出版者	Elsevier Ltd
语种	英语
ISSN号	22112855
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS记录号	WOS:000581738300047
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132692]
专题	兰州理工大学
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning; 530004, China 4.CAS 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, China; 5.Department of Mechanical Engineering, University of Bath, BA2 7AK, United Kingdom;
推荐引用方式 GB/T 7714	Zhao, Kun,Ouyang, Bangsen,Bowen, Chris R.,et al. Enhanced photocurrent via ferro-pyro-phototronic effect in ferroelectric BaTiO3 materials for a self-powered flexible photodetector system[C]. 见:.