Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells

doi:10.1021/acs.chemmater.5b03169

QIBEBT-IR > 仿生与固态能源系统研究组

	Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells
	Wang, Zaiwei 1; Zhou, Yuanyuan 2; Pang, Shuping1 ; Xiao, Zewen 3; Zhang, Jiliang 4; Chai, Wenqiang 1; Xu, Hongxia1 ; Liu, Zhihong 1; Padture, Nitin P.2; Cui, Guanglei1
	2015-10-27
发表期刊	CHEMISTRY OF MATERIALS
卷号	27 期号:20 页码:7149-7155
摘要	Formamidinium lead triiodide (HC(NH2)(2)PbI3 or FAPbI(3)) is gaining increasing interest in the field of mesoscopic perovskite solar cells (PSCs) for its broader light absorption compared with the more widely studied CH3NH3PbI3 (MAPbI(3)). Because FAPbI(3) has two polymorphs ("black" alpha-FAPbI(3) and "yellow" delta-FAPbI(3)) at ambient temperature, where alpha-FAPbI(3) is the desirable photoactive perovskite phase, it becomes particularly important to suppress the formation of the nonperovskite delta-FAPbI(3) for achieving high efficiency in FAPbI(3)-based mesoscopic PSCs. In this study, we demonstrate that the judicious use of low-volatility additives in the precursor solution assists in the evolution of alpha-FAPbI(3) through the formation of non-delta-FAPbI(3) intermediate phases, which then convert to alpha-FAPbI(3) during thermal annealing. The underlying mechanism involved in the additive-modulated evolution of alpha-FAPI(3) upon mesoporous TiO2 substrates is elucidated, which suggests guidelines for developing protocols for the fabrication efficient FAPbI(3)-based mesoscopic PSCs.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1021/acs.chemmater.5b03169
关键词[WOS]	FORMAMIDINIUM LEAD TRIHALIDE ; HOLE-CONDUCTOR-FREE ; THIN-FILMS ; HALIDE PEROVSKITES ; ONE-STEP ; IODIDE ; LIGHT ; EFFICIENCY ; CRYSTALLIZATION ; GROWTH
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Materials Science
项目资助者	Chinese National Natural Science Foundation(51202266 ; International S&T Cooperation Program of China(2015DFG62670) ; Youth Innovation Promotion Association of CAS(2015167) ; Basic Research Program of Qingdao(14-2-4-8-jch) ; Qingdao Key Lab of Solar Energy Utilization and Energy Storage Technology ; U.S. National Science Foundation(DMR 1305913 ; 21202178) ; OIA-1538893)
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000363915000028
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6773
专题	仿生与固态能源系统研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Brown Univ, Sch Engn, Providence, RI 02912 USA 3.Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan 4.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zaiwei,Zhou, Yuanyuan,Pang, Shuping,et al. Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells[J]. CHEMISTRY OF MATERIALS,2015,27(20):7149-7155.
APA	Wang, Zaiwei.,Zhou, Yuanyuan.,Pang, Shuping.,Xiao, Zewen.,Zhang, Jiliang.,...&Cui, Guanglei.(2015).Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells.CHEMISTRY OF MATERIALS,27(20),7149-7155.
MLA	Wang, Zaiwei,et al."Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells".CHEMISTRY OF MATERIALS 27.20(2015):7149-7155.