A microstructural analysis of 2D halide perovskites: Stability and functionality

TL;DR

This paper reviews the microstructural properties of 2D halide perovskites, emphasizing their stability and potential for enhanced optoelectronic device performance, especially in solar cells, due to their unique nanoscale features.

Contribution

It provides a comprehensive analysis of 2D halide perovskite structures and discusses their advantages for photovoltaic applications, highlighting recent progress and fundamental properties.

Findings

2D halide perovskites exhibit superior stability compared to 3D counterparts.

Nanoscale features like superlattice structures enhance photoelectric properties.

Tuning dielectric constants improves charge separation in devices.

Abstract

Recent observations indicated that the photoelectric conversion properties of perovskite materials are intimately related to the presence of superlattice structures and other unusual nanoscale features in them. The low dimensional or mixed dimensional halide perovskite family are found to be more efficient materials for device application compared to 3-dimensional halide perovskites. The emergence of perovskite solar cell has revolutionized the solar cell industry because of their flexible architecture and rapidly increased efficiency. Tuning the dielectric constant, charge separation are the main objective in designing a photovoltaic device that can be explored using 2-dimensional perovskite family. Thus, revisiting the fundamental properties of perovskite crystals could reveal further possibilities for recognizing these improvements towards device functionality. In this context, this review discusses the material properties of 2-dimensional halide perovskite and related optoelectronic devices aiming particularly for solar cell application.