Bromine Doping as an Efficient Strategy to Reduce the Interfacial Defects in Hybrid Two-Dimensional/Three-Dimensional Stacking Perovskite Solar Cells

doi:10.1021/acsami.8b09461

	Bromine Doping as an Efficient Strategy to Reduce the Interfacial Defects in Hybrid Two-Dimensional/Three-Dimensional Stacking Perovskite Solar Cells
	Shi, Yantao 3; Song, Xuedan 3; Hao, Ce 3; Liu, Junxue 1; Jin, Shengye 1; Feng, Yulin 3; Wang, Shi 3; Lv, Yanping 3; Wang, Minhuan 2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2018-09-19
卷号	10 期号:37 页码:31755-31764
关键词	2D/3D stacking structure doping interfacial defect charge recombination perovskite solar cell
ISSN号	1944-8244
DOI	10.1021/acsami.8b09461
通讯作者	Shi, Yantao(shiyantao@dlut.edu.cn)
英文摘要	Solar-to-electricity conversion efficiency, power conversion efficiency (PCE), and stability are two important aspects of perovskite solar cells (PSCs). However, both aspects are difficult to simultaneously enhance. In the recent two years, two-dimensional (2D)/three-dimensional (3D) stacking structure, designed by covering the 3D perovskite with a thin 2D perovskite capping layer, was reported to be a promising method to achieve both a higher PCE and improved stability simultaneously. However, when reducing the surface defects of 3D perovskite, the thin 2D capping layer itself may probably introduce additional interfacial defects in a 2D/3D stacking structure, which is thought to be able to trigger trap-assisted nonradiative recombination or ion migration. Thus, efforts should be paid to reduce the interfacial defects of 2D hybrid perovskite when serving as a modification layer in a 2D/3D stacking structure PSCs. Here, we demonstrate that bromine (Br) doping of the 2D perovskite capping layer is an efficient strategy to passivate interfacial defects robustly, by which the photoluminescence lifetime is enhanced notably, whereas the interfacial charge recombination is suppressed a lot. As a result, the PCE is enhanced from 18.01% (3D perovskite) to 20.07% (Br-doped 2D/3D perovskite) along with improved moisture stability.
资助项目	National Natural Science Foundation of China[51402036] ; National Natural Science Foundation of China[51773025] ; International Science & Technology Cooperation Program of China[2013DFA51000]
WOS关键词	PHOTOVOLTAICS ; ELECTRON ; LAYER ; CH3NH3PBI3 ; STABILITY ; FILMS
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000445439900088
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Science & Technology Cooperation Program of China ; International Science & Technology Cooperation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Science & Technology Cooperation Program of China ; International Science & Technology Cooperation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Science & Technology Cooperation Program of China ; International Science & Technology Cooperation Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; International Science & Technology Cooperation Program of China ; International Science & Technology Cooperation Program of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167050]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Shi, Yantao
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Elect Beams, Minist Educ, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yantao,Song, Xuedan,Hao, Ce,et al. Bromine Doping as an Efficient Strategy to Reduce the Interfacial Defects in Hybrid Two-Dimensional/Three-Dimensional Stacking Perovskite Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(37):31755-31764.
APA	Shi, Yantao.,Song, Xuedan.,Hao, Ce.,Liu, Junxue.,Jin, Shengye.,...&Wang, Minhuan.(2018).Bromine Doping as an Efficient Strategy to Reduce the Interfacial Defects in Hybrid Two-Dimensional/Three-Dimensional Stacking Perovskite Solar Cells.ACS APPLIED MATERIALS & INTERFACES,10(37),31755-31764.
MLA	Shi, Yantao,et al."Bromine Doping as an Efficient Strategy to Reduce the Interfacial Defects in Hybrid Two-Dimensional/Three-Dimensional Stacking Perovskite Solar Cells".ACS APPLIED MATERIALS & INTERFACES 10.37(2018):31755-31764.