Methylammonium-Mediated Evolution of Mixed-Organic-Cation Perovskite Thin Films: A Dynamic Composition-Tuning Process

Chongwen Li; Yuanyuan Zhou; Li Wang; Yue Chang; Yingxia Zong; Lioz Etgar; Guanglei Cui; Nitin P. Padture; Shuping Pang

doi:10.1002/anie.201704188

Methylammonium-Mediated Evolution of Mixed-Organic-Cation Perovskite Thin Films: A Dynamic Composition-Tuning Process

Chongwen Li, Yuanyuan Zhou, Li Wang, Yue Chang, Yingxia Zong, Lioz Etgar, Guanglei Cui^*, Nitin P. Padture, Shuping Pang

^*Corresponding author for this work

Institute of Chemistry

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

59 Scopus citations

Abstract

Methylammonium-mediated phase-evolution behavior of FA_1−xMA_xPbI₃ mixed-organic-cation perovskite (MOCP) is studied. It is found that by simply enriching the MOCP precursor solutions with excess methylammonium cations, the MOCPs form via a dynamic composition-tuning process that is key to obtaining MOCP thin films with superior properties. This simple chemical approach addresses several key challenges, such as control over phase purity, uniformity, grain size, composition, etc., associated with the solution-growth of MOCP thin films with targeted compositions.

Original language	English
Pages (from-to)	7674-7678
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	56
Issue number	26
DOIs	https://doi.org/10.1002/anie.201704188
State	Published - 19 Jun 2017

Bibliographical note

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

crystal growth
hybrid perovskites
solar cells
thin films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/anie.201704188

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title = "Methylammonium-Mediated Evolution of Mixed-Organic-Cation Perovskite Thin Films: A Dynamic Composition-Tuning Process",

abstract = "Methylammonium-mediated phase-evolution behavior of FA1−xMAxPbI3 mixed-organic-cation perovskite (MOCP) is studied. It is found that by simply enriching the MOCP precursor solutions with excess methylammonium cations, the MOCPs form via a dynamic composition-tuning process that is key to obtaining MOCP thin films with superior properties. This simple chemical approach addresses several key challenges, such as control over phase purity, uniformity, grain size, composition, etc., associated with the solution-growth of MOCP thin films with targeted compositions.",

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AU - Wang, Li

AU - Chang, Yue

AU - Zong, Yingxia

AU - Etgar, Lioz

AU - Cui, Guanglei

AU - Padture, Nitin P.

AU - Pang, Shuping

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KW - hybrid perovskites

KW - solar cells

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Methylammonium-Mediated Evolution of Mixed-Organic-Cation Perovskite Thin Films: A Dynamic Composition-Tuning Process

Abstract

Bibliographical note

Keywords

UN SDGs

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