发光学报2024，Vol.45Issue(8)：1211-1218,8.DOI:10.37188/CJL.20240120
基于准二维钙钛矿的窄线宽红光电致发光器件性能研究
Performance of Narrow-linewidth Red Emitted Electroluminescent Devices Based on Quasi-two-dimensional Perovskite
摘要
Abstract
Metal halide perovskite light-emitting diodes (PeLEDs) have wide color gamut and high color purity,with broad application prospects in lighting and displays.A groundbreaking study by a research team at the Universi-ty of London published in Scientific Reports found that exposure to red light for just 3 minutes a day could significantly alleviate vision decline.The tunability of perovskite's spectrum and its high color purity provide assurance for the re-alization of eye-protective red-emitted PeLEDs.Unlike previous interface engineering or ligand engineering meth-ods,this paper proposes a new approach to enhance the external quantum efficiency (EQE) of quasi-two-dimensional perovskite red PeLEDs by combining them with microcavity structures to achieve narrower linewidths in electrolumi-nescent devices.The results show that by integrating distributed Bragg reflectors (DBRs) with PeLEDs,narrow line-width high-performance PeLEDs based on microcavity structures were designed and fabricated,achieving a doubling of EQE on top of narrowing the electroluminescence (EL) full width at half maximum for microcavity PeLEDs,with a maximum EQE reaching 11.26％.Compared to reference devices prepared under the same conditions,PeLED devic-es with microcavity structures narrowed their EL linewidth to one-third that of reference devices,only 11 nm.关键词
准二维钙钛矿/分布式布拉格反射镜/红光/电致发光/半高全宽Key words
quasi-two-dimensional perovskite/distributed Bragg mirror/red emitted/electroluminescence/half-height full width分类
信息技术与安全科学引用本文复制引用
张云杰,李晓丹,郭晓阳,刘星元..基于准二维钙钛矿的窄线宽红光电致发光器件性能研究[J].发光学报,2024,45(8):1211-1218,8.基金项目
吉林省科技发展计划项目(20220201091GX,20230101366JC) （20220201091GX,20230101366JC）
长春市科技发展计划项目(23SH06) （23SH06）
国家自然科学基金(62175235)Supported by Jilin Province Science and Technology Research Project(20220201091GX,20230101366JC) （62175235）
Changchun Science and Technology Research Project(23SH06) （23SH06）
National Natural Science Foundation of China(62175235) （62175235）
