Phase stabilization via A-site ion anchoring for ultra-stable perovskite light emitting diodes

Shuo Ding; Zhuoyuan Kong; Yipeng Shen; Piaoyang Shen; Chunyan Wu; Lei Qian; Xinyu Zhang; Long Hu; Hao Chen; Chaoyu Xiang

doi:10.1039/D4MH00701H

Phase stabilization via A-site ion anchoring for ultra-stable perovskite light emitting diodes†

Shuo Ding,

^abc Zhuoyuan Kong,^abd Yipeng Shen,^abd Piaoyang Shen,^ab Chunyan Wu,

^ab Lei Qian,^ab Xinyu Zhang,^c Long Hu,^e Hao Chen*^c and Chaoyu Xiang

*^ab

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* Corresponding authors

^a Laboratory of Optoelectronic Information Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, China
E-mail: xiangchaoyu@nimte.ac.cn

^b Hangzhou Bay Laboratory of Advanced Nano-Optoelectronic Materials and Devices, Qianwan Institute of CNITECH, Ningbo, Zhejiang, China

^c Department of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham Ningbo China, Ningbo, Zhejiang, China
E-mail: hao.chen@nottingham.edu.cn

^d Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China

^e School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, Australia

Abstract

A novel ion anchoring strategy stabilizes the perovskite phase, yielding ambient stable perovskite films and ultra-stable perovskite light-emitting diodes (PeLEDs) with an unprecedented operational half-lifetime over 37.2 years at 100 cd m⁻² and exceeding 27% efficiency, marking a new stability benchmark for next-generation display and lighting applications.

This article is part of the themed collection: Celebrating the 20th Anniversary of the Ningbo Institute of Materials Technology and Engineering

Materials Horizons

Phase stabilization via A-site ion anchoring for ultra-stable perovskite light emitting diodes†

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Phase stabilization via A-site ion anchoring for ultra-stable perovskite light emitting diodes

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