基于准二维钙钛矿发光层优化的蓝色发光二极管研究进展  

Research Progress of Blue Light-emitting Diodes Based on Quasi-two-dimensional Perovskite Light-emitting Layer Optimization

作　　者：刘茜茜 韩鹏 张勇[1] LIU Qianqian;HAN Peng;ZHANG Yong(School of Material Science and Engineering,Harbin Institute of Technology,Harbin 150006,China)

机构地区：[1]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150006

出　　处：《发光学报》2024年第10期1604-1612,共9页Chinese Journal of Luminescence

基　　金：国家自然科学基金(22175049)。

摘　　要：金属卤化物钙钛矿材料因其简单的制备工艺和独特的光电性能,在照明、显示等光电子领域有着巨大的发展潜力。目前,钙钛矿发光二极管在绿光、红光等领域均取得了一定进展,然而实现高效率蓝色发光二极管仍存在较大挑战。近年来,研究人员主要通过组分工程和维度工程两种途径实现钙钛矿蓝光调控。其中,准二维钙钛矿材料具有自组装量子阱结构,在蓝光发射方面表现出独特优势。由此,本文综述了目前准二维钙钛矿蓝色发光二极管的相关进展。首先阐述了准二维钙钛矿的结构和光学性质;重点从器件的发光层出发,系统地总结了提升器件性能的方法策略;然后围绕器件稳定性展开了相关描述;最后就准二维钙钛矿蓝色发光二极管的发展提出了部分总结和展望,期待其性能不断突破。Metal halide perovskite materials have great potential for development in the fields of lighting,display,and other optoelectronics due to their simple preparation process and unique optoelectronic properties.Currently,perovskite light-emitting diodes(PeLEDs)have made some progress in the fields of green light and red light.However,there are still big challenges to realize high-efficiency blue PeLEDs.In recent years,researchers have realized the blue light modulation of perovskites mainly through two ways:component engineering and dimensional engineering.Among them,quasi-two-dimensional perovskite materials have self-assembled quantum well structures,which exhibit unique advantages in blue light emission.As a result,this paper summarizes the current progress related to quasi-two-dimensional perovskite blue light diodes.Firstly,the quasi-2D perovskite blue light material system is briefly introduced,and then the structure and optical properties of quasi-2D perovskite are described.Secondly,focusing on the light-emitting layer of the device,we systematically summarize the methods and strategies to improve the performance of the device and finally put forward a partial summary and outlook on the development of quasi-2D perovskite blue light diodes in anticipation of a continuous breakthrough in their performance.

关 键 词：准二维钙钛矿 发光层优化 蓝光 发光二极管 

分 类 号：TN312.8[电子电信—物理电子学]