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

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

crystal growth
hybrid perovskites
solar cells
thin films

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10.1002/anie.201704188

Cite this

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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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author = "Chongwen Li and Yuanyuan Zhou and Li Wang and Yue Chang and Yingxia Zong and Lioz Etgar and Guanglei Cui and Padture, \{Nitin P.\} and Shuping Pang",

note = "Publisher Copyright: {\textcopyright} 2017 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

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doi = "10.1002/anie.201704188",

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T2 - A Dynamic Composition-Tuning Process

AU - Li, Chongwen

AU - Zhou, Yuanyuan

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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N2 - 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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KW - crystal growth

KW - hybrid perovskites

KW - solar cells

KW - thin films

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

Abstract

Bibliographical note

UN SDGs

Keywords

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