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

Research output: Contribution to journalArticle

42 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)14723-14727
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number47
DOIs
StatePublished - Jan 1 2016

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Thin films
Perovskite
methylamine
Temperature
perovskite

Keywords

  • hybrid perovskites
  • solar cells
  • thin films

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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, 01.01.2016, p. 14723-14727.

Research output: Contribution to journalArticle

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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