Rethinking the A cation in halide perovskites

Author:

Lee Jin-Wook1ORCID,Tan Shaun23ORCID,Seok Sang Il4ORCID,Yang Yang23ORCID,Park Nam-Gyu5ORCID

Affiliation:

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.

Abstract

The A cation in ABX 3 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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