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Direct Observation of Ferroelectric Domains in Solution-Processed CH3NH3PbI3 Perovskite Thin Films
Kutes, Yasemin1; Ye, Linghan1; Zhou, Yuanyuan2; Pang, Shuping3; Huey, Bryan D.1; Padture, Nitin P.2
2014-10-02
发表期刊JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷号5期号:19页码:3335-3339
摘要

A new generation of solid-state photovoltaics is being made possible by the use of organometal-trihalide perovskite materials. While some of these materials are expected to be ferroelectric, almost nothing is known about their ferroelectric properties experimentally. Using piezoforce microscopy (PFM), here we show unambiguously, for the first time, the presence of ferroelectric domains in high-quality beta-CH3NH3PbI3 perovskite thin films that have been synthesized using a new solution-processing method. The size of the ferroelectric domains is found to be about the size of the grains (similar to 100 nm). We also present evidence for the reversible switching of the ferroelectric domains by poling with DC biases. This suggests the importance of further PFM investigations into the local ferroelectric behavior of hybrid perovskites, in particular in situ photoeffects. Such investigations could contribute toward the basic understanding of photovoltaic mechanisms in perovskite-based solar cells, which is essential for the further enhancement of the performance of these promising photovoltaics.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/jz501697b
关键词[WOS]ORGANOMETAL HALIDE PEROVSKITE ; SOLAR-CELLS ; FORCE MICROSCOPY ; HIGH-PERFORMANCE ; DYNAMICS ; ELECTRON
收录类别SCI
语种英语
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000343067800019
引用统计
被引频次:242[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6140
专题仿生能源与储能系统团队
作者单位1.Univ Connecticut, Dept Mat Sci & Engn, Storrs, CT 06269 USA
2.Brown Univ, Sch Engn, Providence, RI 02912 USA
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
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GB/T 7714
Kutes, Yasemin,Ye, Linghan,Zhou, Yuanyuan,et al. Direct Observation of Ferroelectric Domains in Solution-Processed CH3NH3PbI3 Perovskite Thin Films[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2014,5(19):3335-3339.
APA Kutes, Yasemin,Ye, Linghan,Zhou, Yuanyuan,Pang, Shuping,Huey, Bryan D.,&Padture, Nitin P..(2014).Direct Observation of Ferroelectric Domains in Solution-Processed CH3NH3PbI3 Perovskite Thin Films.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,5(19),3335-3339.
MLA Kutes, Yasemin,et al."Direct Observation of Ferroelectric Domains in Solution-Processed CH3NH3PbI3 Perovskite Thin Films".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 5.19(2014):3335-3339.
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