Octahedral units in halide perovskites

IF 38.1 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yong Wang, Yu Wang, Tiarnan A. S. Doherty, Samuel D. Stranks, Feng Gao, Deren Yang
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引用次数: 0

Abstract

Metal halide perovskites, with an ABX3 crystal structure, possess excellent photophysical properties for (opto)electronic applications including photovoltaics, light-emitting diodes, photodetectors and transistors. To pave the pathway towards commercial applications, enormous efforts have been made to obtain high-performance perovskite-based devices. The octahedral unit is considered to be the fundamental and functional unit of halide perovskite materials, consisting of a central B cation surrounded by six X anions, with typical dimensions of 5−6 Å. One promising pathway towards stable and high-performance perovskite devices is to manipulate this octahedral unit. Although rational engineering of octahedra has been used in oxide perovskites to unlock various functionalities, analogous targeted work has been relatively underexplored in halide perovskites. Here, we present fundamental concepts regarding octahedral configurations in metal halide perovskites and its effects on crystal structures, photophysical properties and device performance. We outline techniques that can be used for characterizing octahedral units and summarize different approaches to rationally manipulate these units. Finally, we discuss the challenges and outlook for future research to align octahedral units with device investigations.

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来源期刊
Nature reviews. Chemistry
Nature reviews. Chemistry Chemical Engineering-General Chemical Engineering
CiteScore
52.80
自引率
0.80%
发文量
88
期刊介绍: Nature Reviews Chemistry is an online-only journal that publishes Reviews, Perspectives, and Comments on various disciplines within chemistry. The Reviews aim to offer balanced and objective analyses of selected topics, providing clear descriptions of relevant scientific literature. The content is designed to be accessible to recent graduates in any chemistry-related discipline while also offering insights for principal investigators and industry-based research scientists. Additionally, Reviews should provide the authors' perspectives on future directions and opinions regarding the major challenges faced by researchers in the field.
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