Rethinking the A cation in halide perovskites

Jin-Wook Lee; Shaun Tan; Sang Il Seok; Yang Yang; Nam-Gyu Park

doi:10.1126/science.abj1186

Rethinking the A cation in halide perovskites

Science. 2022 Feb 25;375(6583):eabj1186. doi: 10.1126/science.abj1186. Epub 2022 Feb 25.

Authors

Jin-Wook Lee^#¹, Shaun Tan^#^{2

3}, Sang Il Seok⁴, Yang Yang^{2

3}, Nam-Gyu Park⁵

Affiliations

¹ SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nanoengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
² Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
³ California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA.
⁴ Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea.
⁵ School of Chemical Engineering and Center for Antibonding Regulated Crystals, Sungkyunkwan University, Suwon 16419, Republic of Korea.

^# Contributed equally.

PMID: 35201885
DOI: 10.1126/science.abj1186

Abstract

The A cation in ABX₃ organic-inorganic lead halide perovskites (OLHPs) was conventionally believed to hardly affect their optoelectronic properties. However, more recent developments have unraveled the critical role of the A cation in the regulation of the physicochemical and optoelectronic properties of OLHPs. We review the important breakthroughs enabled by the versatility of the A cation and highlight potential opportunities and unanswered questions related to the A cation in OLHPs.

Publication types

Review
Research Support, Non-U.S. Gov't