Issue 61, 2024

Advances and challenges in molecular engineering of 2D/3D perovskite heterostructures

Abstract

Organic–inorganic hybrid perovskites have been intensively studied in past decades due to their outstanding performance in solar cells and other optoelectronic devices. Recently, the emergence of two-dimensional/three-dimensional (2D/3D) heterojunctions have enabled many solar cell devices with >25% power conversion efficiency, driven by advances in our understanding of the structural and photophysical properties of the heterojunctions and our ability to control these properties through organic cation configuration in 2D perovskites. In this feature article, we discuss a fundamental understanding of structural characteristics and the carrier dynamics in the 2D/3D heterojunctions and their impact factors. We further elaborate the design strategies for the molecular configuration of organic cations to achieve thorough management of these properties. Finally, recent advances in 2D/3D heterostructures in solar cells, light-emitting devices and photodetectors are highlighted, which translate fundamental understandings to device applications and also reveal the remaining challenges in ligand design for the next generation of stable devices. Future development prospects and related challenges are also provided, with wide perspectives and insightful thoughts.

Graphical abstract: Advances and challenges in molecular engineering of 2D/3D perovskite heterostructures

Article information

Article type
Feature Article
Submitted
11 mai 2024
Accepted
19 jun 2024
First published
20 jun 2024
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2024,60, 7824-7842

Advances and challenges in molecular engineering of 2D/3D perovskite heterostructures

K. Ma, J. Sun and L. Dou, Chem. Commun., 2024, 60, 7824 DOI: 10.1039/D4CC02299H

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