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Additive-Modulated Evolution of HC(NH2)(2)PbI3 Black Polymorph for Mesoscopic Perovskite Solar Cells
Wang, Zaiwei1; Zhou, Yuanyuan2; Pang, Shuping1; Xiao, Zewen3; Zhang, Jiliang4; Chai, Wenqiang1; Xu, Hongxia1; Liu, Zhihong1; 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
DOI10.1021/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
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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.
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