Two-Dimensional halide perovskites: Synthesis, optoelectronic properties, stability, and applications

TL;DR

This review comprehensively covers the synthesis, properties, stability, and diverse applications of two-dimensional halide perovskites, highlighting their advantages over three-dimensional counterparts in optoelectronic devices.

Contribution

It provides an extensive overview of recent advances in 2D halide perovskites, including synthesis strategies, phase control, and application potential.

Findings

2D perovskites exhibit enhanced stability over 3D structures.

They show promising optoelectronic properties for various devices.

Recent developments enable shape and phase control in synthesis.

Abstract

Halide perovskites are promising materials for light-emitting and light-harvesting applications. In this context, two-dimensional perovskites such as nanoplatelets or Ruddlesden-Popper and Dion-Jacobson layered structures are important because of their structural flexibility, electronic confinement, and better stability. This review article brings forth an extensive overview of the recent developments of two-dimensional halide perovskites both in the colloidal and non-colloidal forms. We outline the strategy to synthesize and control the shape and discuss different crystalline phases and optoelectronic properties. We review the applications of two-dimensional perovskites in solar cells, light-emitting diodes, lasers, photodetectors, and photocatalysis. Besides, we also emphasize the moisture, thermal, and photostability of these materials in comparison to their three-dimensional analogs.