Effect of cooling oxygen pressure on the photoconductivity in Bi0.9La0.1FeO3 thin films

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	Effect of cooling oxygen pressure on the photoconductivity in Bi0.9La0.1FeO3 thin films
	Gao, RL ; Yang, HW ; Chen, YS ; Sun, JR ; Zhao, YG ; Shen, BG
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2014
卷号	591 页码:346
关键词	Oxygen vacancies BiFeO3 Photoconductivity Leakage current
ISSN号	0925-8388
通讯作者	Gao, RL (reprint author), Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China.
中文摘要	A direct correlation is observed between the magnitude of the photoconductivity and cooling oxygen pressure in Bi0.9La0.1FeO3 films. With lower oxygen vacancies (V-Os) films cooled in higher oxygen pressure show obviously decrease in leakage current. Higher level of VOs led to higher free carrier concentration and hence is believed to be responsible for the increase in higher photoconductivity. It is evident that BLFO films with higher VOs cooled in lower oxygen pressure and/or light illumination induce a higher carrier injection, n(i) and thus the conductive mechanism is dominated by space-charge-limited conduction. (C) 2014 Elsevier B. V. All rights reserved.
资助信息	National Basic Research of China; National Natural Science Foundation of China; Knowledge Innovation Project of the Chinese Academy of Sciences; Beijing Municipal Natural Science Foundation
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59123]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Gao, RL,Yang, HW,Chen, YS,et al. Effect of cooling oxygen pressure on the photoconductivity in Bi0.9La0.1FeO3 thin films[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,591:346.
APA	Gao, RL,Yang, HW,Chen, YS,Sun, JR,Zhao, YG,&Shen, BG.(2014).Effect of cooling oxygen pressure on the photoconductivity in Bi0.9La0.1FeO3 thin films.JOURNAL OF ALLOYS AND COMPOUNDS,591,346.
MLA	Gao, RL,et al."Effect of cooling oxygen pressure on the photoconductivity in Bi0.9La0.1FeO3 thin films".JOURNAL OF ALLOYS AND COMPOUNDS 591(2014):346.