Issue 21, 2025

Ferroelectric polarization in 2D halide hybrid perovskites: influence on bulk crystals, thin films, and applications

Abstract

Ferroelectric materials undergo spontaneous polarization that can be reversed by applying an external electric field. This property plays the most important role in applications such as logic gates, microwave communications, piezo energy harvesting, memory storage such as ferroelectric random-access memory (FeRAM), and ferroelectric sensors and actuators. Recently, hybrid halide perovskites (HHPs) have started demonstrating impressive ferroelectric properties in addition to their excellent photovoltaic performance. Compared to traditional oxide perovskites and organic ferroelectric materials, HHPs have the advantage that they can be simple solution-processed yet with immaculate crystal quality which is suitable for realizing next-generation thin film flexible electronics and FeRAM in neuromorphic computing. This review focuses on the current status of ferroelectric properties of two-dimensional (2D) halide perovskite single crystals and covers the limited reports available on thin film HHPs. Furthermore, we explain the challenges in the ferroelectric characterization of thin film HHPs and compare them with those of single crystals.

Graphical abstract: Ferroelectric polarization in 2D halide hybrid perovskites: influence on bulk crystals, thin films, and applications

Article information

Article type
Review Article
Submitted
15 Dec 2024
Accepted
04 Apr 2025
First published
25 Apr 2025
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2025,13, 10488-10506

Ferroelectric polarization in 2D halide hybrid perovskites: influence on bulk crystals, thin films, and applications

R. S. Muddam and L. K. Jagadamma, J. Mater. Chem. C, 2025, 13, 10488 DOI: 10.1039/D4TC05289G

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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