Thin-Film Transformation of NH4PbI3to CH3NH3PbI3Perovskite: A Methylamine-Induced Conversion–Healing Process

Yingxia Zong; Yuanyuan Zhou; Minggang Ju; Hector F. Garces; Amanda R. Krause; Fuxiang Ji; Guanglei Cui; Xiao Cheng Zeng; Nitin P. Padture; Shuping Pang

doi:10.1002/anie.201609529

Thin-Film Transformation of NH₄PbI₃to CH₃NH₃PbI₃Perovskite: A Methylamine-Induced Conversion–Healing Process

Yingxia Zong, Yuanyuan Zhou, Minggang Ju, Hector F. Garces, Amanda R. Krause, Fuxiang Ji, Guanglei Cui, Xiao Cheng Zeng, Nitin P. Padture, Shuping Pang

Chemistry

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

Methylamine-induced thin-film transformation at room-temperature is discovered, where a porous, rough, polycrystalline NH₄PbI₃non-perovskite thin film converts stepwise into a dense, ultrasmooth, textured CH₃NH₃PbI₃perovskite thin film. Owing to the beneficial phase/structural development of the thin film, its photovoltaic properties undergo dramatic enhancement during this NH₄PbI₃-to-CH₃NH₃PbI₃transformation process. The chemical origins of this transformation are studied at various length scales.

Original language	English (US)
Pages (from-to)	14723-14727
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	47
DOIs	https://doi.org/10.1002/anie.201609529
State	Published - Nov 14 2016

Keywords

hybrid perovskites
solar cells
thin films

ASJC Scopus subject areas

Catalysis
Chemistry(all)

Access to Document

10.1002/anie.201609529

Cite this

Thin-Film Transformation of NH₄PbI₃to CH₃NH₃PbI₃Perovskite : A Methylamine-Induced Conversion–Healing Process. / Zong, Yingxia; Zhou, Yuanyuan; Ju, Minggang; Garces, Hector F.; Krause, Amanda R.; Ji, Fuxiang; Cui, Guanglei; Zeng, Xiao Cheng; Padture, Nitin P.; Pang, Shuping.

In: Angewandte Chemie - International Edition, Vol. 55, No. 47, 14.11.2016, p. 14723-14727.

Research output: Contribution to journal › Article › peer-review

Zong, Yingxia ; Zhou, Yuanyuan ; Ju, Minggang ; Garces, Hector F. ; Krause, Amanda R. ; Ji, Fuxiang ; Cui, Guanglei ; Zeng, Xiao Cheng ; Padture, Nitin P. ; Pang, Shuping. / Thin-Film Transformation of NH₄PbI₃to CH₃NH₃PbI₃Perovskite : A Methylamine-Induced Conversion–Healing Process. In: Angewandte Chemie - International Edition. 2016 ; Vol. 55, No. 47. pp. 14723-14727.

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abstract = "Methylamine-induced thin-film transformation at room-temperature is discovered, where a porous, rough, polycrystalline NH4PbI3non-perovskite thin film converts stepwise into a dense, ultrasmooth, textured CH3NH3PbI3perovskite thin film. Owing to the beneficial phase/structural development of the thin film, its photovoltaic properties undergo dramatic enhancement during this NH4PbI3-to-CH3NH3PbI3transformation process. The chemical origins of this transformation are studied at various length scales.",

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