Issue 22, 2023

Intrinsic stability of perovskite materials and their operational stability in light-emitting diodes

Abstract

Organic–inorganic hybrid perovskite material-based light-emitting diodes (PLEDs) can replace conventional LEDs for next-generation smart devices. The advantages of perovskite materials are narrow band emission, solution-processed device fabrication, and tunable band gaps. However, the stability of PLEDs is a major concern. Perovskite material-based LEDs suffer from ion migration due to the generated electric field during the device operation. Ion migration leads to the degradation of perovskite materials, charge transport layers and metal electrodes, resulting in the breakdown of PLEDs. Other factors for device instability include Joule heating, electrochemical interfacial reaction, atmospheric moisture, and others. Various strategies have been explored to mitigate these challenges, such as optimizing the stoichiometry of perovskite materials, introducing all inorganic element-based perovskite materials, encapsulating the emission layer, use of voltage pulse, device engineering, and defect-free low-bias operative PLEDs. The present review discusses the current status of perovskite-based LEDs in terms of operational stability, degradation mechanisms of perovskites, and strategies to overcome these challenges for a better operational lifetime.

Graphical abstract: Intrinsic stability of perovskite materials and their operational stability in light-emitting diodes

Supplementary files

Article information

Article type
Review Article
Submitted
17 ربيع الثاني 1444
Accepted
07 شوال 1444
First published
12 شوال 1444

J. Mater. Chem. C, 2023,11, 7159-7182

Intrinsic stability of perovskite materials and their operational stability in light-emitting diodes

K. L. Kumawat, K. K. Nanda and P. Rajamalli, J. Mater. Chem. C, 2023, 11, 7159 DOI: 10.1039/D2TC04798E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements