A-site phase segregation in mixed cation perovskite

Lang Liu; Jiuzhou Lu; Hao Wang; Zhenhua Cui; Giacomo Giorgi; Yang Bai; Qi Chen

doi:10.1016/j.matre.2021.100064

A-site phase segregation in mixed cation perovskite

Lang Liu, Jiuzhou Lu, Hao Wang, Zhenhua Cui, Giacomo Giorgi, Yang Bai^*, Qi Chen^*

^*此作品的通讯作者

科研成果: 期刊稿件 › 文献综述 › 同行评审

52 引用（Scopus）

摘要

Mixed cation strategy greatly benefits the enhancement of device performance and chemical stability. However, adverse impact also accompanies the mixed cation system simultaneously. It brings the compositional instability, wherein the homogeneous film is likely to segregate into multi-phases during the fabrication and ageing process, thus resulting in the efficiency reduction of perovskite solar cells (PSCs) devices. This review focuses on the cation induced phase segregation, and elucidates the segregation mechanisms from the perspectives of film formation and ageing process, respectively. Furthermore, the influence of cation segregation on device performance and operational stability are discussed. And based on these understandings, viable strategies are proposed for the design of phase-stable mixed composition halide perovskites and for suppressing segregation to benefit its development towards commercial applications.

源语言	英语
文章编号	100064
期刊	Materials Reports: Energy
卷	1
期	4
DOI	https://doi.org/10.1016/j.matre.2021.100064
出版状态	已出版 - 11月 2021

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Liu, L., Lu, J., Wang, H., Cui, Z., Giorgi, G., Bai, Y., & Chen, Q. (2021). A-site phase segregation in mixed cation perovskite. Materials Reports: Energy, 1(4), 文章 100064. https://doi.org/10.1016/j.matre.2021.100064

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title = "A-site phase segregation in mixed cation perovskite",

abstract = "Mixed cation strategy greatly benefits the enhancement of device performance and chemical stability. However, adverse impact also accompanies the mixed cation system simultaneously. It brings the compositional instability, wherein the homogeneous film is likely to segregate into multi-phases during the fabrication and ageing process, thus resulting in the efficiency reduction of perovskite solar cells (PSCs) devices. This review focuses on the cation induced phase segregation, and elucidates the segregation mechanisms from the perspectives of film formation and ageing process, respectively. Furthermore, the influence of cation segregation on device performance and operational stability are discussed. And based on these understandings, viable strategies are proposed for the design of phase-stable mixed composition halide perovskites and for suppressing segregation to benefit its development towards commercial applications.",

keywords = "Mixed cation, Perovskite, Phase segregation, Photovoltaic, Stability",

author = "Lang Liu and Jiuzhou Lu and Hao Wang and Zhenhua Cui and Giacomo Giorgi and Yang Bai and Qi Chen",

note = "Publisher Copyright: {\textcopyright} 2021 Chongqing Xixin Tianyuan Data & Information Co., Ltd",

year = "2021",

month = nov,

doi = "10.1016/j.matre.2021.100064",

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T1 - A-site phase segregation in mixed cation perovskite

AU - Liu, Lang

AU - Lu, Jiuzhou

AU - Wang, Hao

AU - Cui, Zhenhua

AU - Giorgi, Giacomo

AU - Bai, Yang

AU - Chen, Qi

PY - 2021/11

Y1 - 2021/11

N2 - Mixed cation strategy greatly benefits the enhancement of device performance and chemical stability. However, adverse impact also accompanies the mixed cation system simultaneously. It brings the compositional instability, wherein the homogeneous film is likely to segregate into multi-phases during the fabrication and ageing process, thus resulting in the efficiency reduction of perovskite solar cells (PSCs) devices. This review focuses on the cation induced phase segregation, and elucidates the segregation mechanisms from the perspectives of film formation and ageing process, respectively. Furthermore, the influence of cation segregation on device performance and operational stability are discussed. And based on these understandings, viable strategies are proposed for the design of phase-stable mixed composition halide perovskites and for suppressing segregation to benefit its development towards commercial applications.

AB - Mixed cation strategy greatly benefits the enhancement of device performance and chemical stability. However, adverse impact also accompanies the mixed cation system simultaneously. It brings the compositional instability, wherein the homogeneous film is likely to segregate into multi-phases during the fabrication and ageing process, thus resulting in the efficiency reduction of perovskite solar cells (PSCs) devices. This review focuses on the cation induced phase segregation, and elucidates the segregation mechanisms from the perspectives of film formation and ageing process, respectively. Furthermore, the influence of cation segregation on device performance and operational stability are discussed. And based on these understandings, viable strategies are proposed for the design of phase-stable mixed composition halide perovskites and for suppressing segregation to benefit its development towards commercial applications.

KW - Mixed cation

KW - Perovskite

KW - Phase segregation

KW - Photovoltaic

KW - Stability

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U2 - 10.1016/j.matre.2021.100064

DO - 10.1016/j.matre.2021.100064

M3 - Review article

AN - SCOPUS:85148370094

SN - 2666-9358

VL - 1

JO - Materials Reports: Energy

JF - Materials Reports: Energy

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A-site phase segregation in mixed cation perovskite

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