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

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells
	Wang, Zaiwei 1; Zhou, Yuanyuan 2; Pang, Shuping 1; Xiao, Zewen 3; Zhang, Jiliang 4; Chai, Wenqiang 1; Xu, Hongxia 1; Liu, Zhihong 1; Padture, Nitin P.2; Cui, Guanglei1
刊名	CHEMISTRY OF MATERIALS
	2015-10-27
卷号	27 期号:20 页码:7149-7155
英文摘要	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.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
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记录号	WOS:000363915000028
公开日期	2015-12-29
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/6773]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
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.