Focus on Perovskite Emitters in Blue Light-emitting Diodes

Overview

Journal Light Sci Appl

Publisher Springer Nature

Date 2023 Jul 23

PMID 37482582

Authors

Xiaoyu Yang

Li Ma

Maotao Yu

Hao-Hsin Chen

Yongqiang Ji

An Hu

Qixuan Zhong

Xiaohan Jia

Yanju Wang

Yuzhuo Zhang

Rui Zhu

Xinqiang Wang

Changjun Lu

Affiliations

Soon will be listed here.

Abstract

Blue perovskite light-emitting diodes (PeLEDs) are essential in pixels of perovskite displays, while their progress lags far behind their red and green counterparts. Here, we focus on recent advances of blue PeLEDs and systematically review the noteworthy strategies, which are categorized into compositional engineering, dimensional control, and size confinement, on optimizing microstructures, energy landscapes, and charge behaviors of wide-bandgap perovskite emitters (bandgap >2.5 eV). Moreover, the stability of perovskite blue emitters and related devices is discussed. In the end, we propose a technical roadmap for the fabrication of state-of-the-art blue PeLEDs to chase and achieve comparable performance with the other two primary-color devices.

Citing Articles

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Efficient and stable hybrid perovskite-organic light-emitting diodes with external quantum efficiency exceeding 40 per cent.

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