Improved performance of perovskite photodetectors based on a solution-processed CH3NH3PbI3/SnO2 heterojunction

doi:10.1016/j.orgel.2018.03.018

CIOMP OpenIR

	Improved performance of perovskite photodetectors based on a solution-processed CH3NH3PbI3/SnO2 heterojunction
	Wu, H. R.; Su, Z. S.; Jin, F. M.; Zhao, H. F.; Li, W. L.; Chu, B.
	2018
发表期刊	Organic Electronics
ISSN	1566-1199
卷号	57 页码:206-210
摘要	High-performance perovskite photodetectors are demonstrated based on a CH3NH3PbI3/SnO2 heterojunction on glass substrates. This heterojunction can be fabricated with a facile and low-cost spin-coating method at low temperature. The photoresponse of the photodetectors is dramatically increased with such a heterojunction structure. The optimized device shows a responsivity of 1.65 A/W, which is more than twice to the reference device with a CH3NH3PbI3 layer on bare glass (0.67 A/W). Besides, the device also exhibits a fast response speed with rise and decay times both of about 10 ms. The inserted SnO2 layer not only improves the morphology and crystallinity of the CH3NH3PbI3 films but also increases the dissociation efficiency of the excitons in CH3NH3PbI3 through electron transfers from CH3NH3PbI3 to SnO2, which increases the hole collection efficiency due to the suppressed charge carrier recombination probability of the devices and prolonged lifetime of the holes in CH3NH3PbI3 films.
关键词	Perovskite photodetector Heterojunction Exciton dissociation Charge transfer solar-cells sno2 nanocrystals thin-film electron efficient temperature layers exchange lengths Materials Science Physics
DOI	10.1016/j.orgel.2018.03.018
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61031
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Wu, H. R.,Su, Z. S.,Jin, F. M.,et al. Improved performance of perovskite photodetectors based on a solution-processed CH3NH3PbI3/SnO2 heterojunction[J]. Organic Electronics,2018,57:206-210.
APA	Wu, H. R.,Su, Z. S.,Jin, F. M.,Zhao, H. F.,Li, W. L.,&Chu, B..(2018).Improved performance of perovskite photodetectors based on a solution-processed CH3NH3PbI3/SnO2 heterojunction.Organic Electronics,57,206-210.
MLA	Wu, H. R.,et al."Improved performance of perovskite photodetectors based on a solution-processed CH3NH3PbI3/SnO2 heterojunction".Organic Electronics 57(2018):206-210.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Improved performance（2894KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载