Enhanced Performance of Perovskite CH(3)NH(3)Pbl(3) Solar Cell by Using   CH3NH3I as Additive in Sequential Deposition

doi:10.1021/acsami.5b02705

CORC > 北京大学 > 化学与分子工程学院

	Enhanced Performance of Perovskite CH(3)NH(3)Pbl(3) Solar Cell by Using CH3NH3I as Additive in Sequential Deposition
	Xie, Yian ; Shao, Feng ; Wang, Yaoming ; Xu, Tao ; Wang, Deliang ; Huang, Fuqiang
刊名	ACS APPLIED MATERIALS & INTERFACES
	2015
关键词	perovskite solar cell sequential solution deposition recombination CH3NH3I HALIDE PEROVSKITES HIGH-EFFICIENCY INTERFACE TRANSPORT ELECTRON TRIHALIDE LENGTHS
DOI	10.1021/acsami.5b02705
英文摘要	Sequential deposition is a widely adopted method to prepare CH3NH3PbI3 on mesostructured TiO2 electrode for organic lead halide perovskite solar cells. However, this method often suffers from the uncontrollable crystal size, surface morphology, and residual PbI2 in the resulting CH3NH3PbI3, which are all detrimental to the device performance. We herein present an optimized sequential solution deposition method by introducing different amount of CH3NH3I in PbI2 precursor solution in the first step to prepare CH3NH3PbI3 absorber on mesoporous TiO2 substrates. The addition of CH3NH3I in PbI2 precursor solution can affect the crystallization and composition of PbI2 raw films, resulting in the variation of UV-vis absorption and surface morphology. Proper addition of CH3NH3I not only enhances the absorption but also improves the efficiency of CH3NH3PbI3 solar cells from 11.13% to 13.37%. Photoluminescence spectra suggest that the improvement of device performance is attributed to the decrease of recombination rate of carriers in CH3NH3PbI3 absorber. This current method provides a highly repeatable route for enhancing the efficiency of CH3NH3PbI3 solar cell in the sequential solution deposition method.; National Science Foundation of China [91122034, 51125006, 61376056, 61204072]; Science and Technology Commission of Shanghai [13JC1405700, 14520722000]; U.S. National Science Foundation [CBET-1150617]; SCI(E); EI; ARTICLE; txu@niu.edu; huangfq@mail.sic.ac.cn; 23; 12937-12942; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/419279]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xie, Yian,Shao, Feng,Wang, Yaoming,et al. Enhanced Performance of Perovskite CH(3)NH(3)Pbl(3) Solar Cell by Using CH3NH3I as Additive in Sequential Deposition[J]. ACS APPLIED MATERIALS & INTERFACES,2015.
APA	Xie, Yian,Shao, Feng,Wang, Yaoming,Xu, Tao,Wang, Deliang,&Huang, Fuqiang.(2015).Enhanced Performance of Perovskite CH(3)NH(3)Pbl(3) Solar Cell by Using CH3NH3I as Additive in Sequential Deposition.ACS APPLIED MATERIALS & INTERFACES.
MLA	Xie, Yian,et al."Enhanced Performance of Perovskite CH(3)NH(3)Pbl(3) Solar Cell by Using CH3NH3I as Additive in Sequential Deposition".ACS APPLIED MATERIALS & INTERFACES (2015).