红光钙钛矿发光二极管研究进展  

Research Progress of Red Perovskite Light-emitting Diodes

作　　者：邓艳红 朱莹 陈默 戴志新 王金江 包焱 李丹丹 刘昱 DENG Yanhong;ZHU Ying;CHEN Mo;DAI Zhixin;WANG Jinjiang;BAO Yan;LI Dandan;LIU Yu(College of Physics and Electronic Engineering,Hengyang Normal University,Hengyang 421002,China)

机构地区：[1]衡阳师范学院物理与电子工程学院,湖南衡阳421002

出　　处：《发光学报》2024年第10期1683-1698,共16页Chinese Journal of Luminescence

基　　金：国家级大学生创新创业训练计划项目(202210546005)。

摘　　要：红光钙钛矿发光二极管(PeLEDs)以其卓越的节能降耗特性而备受关注,其可促进植物生长、细胞再生与代谢过程,并在显示技术、照明系统、农业栽培及医疗领域均展现出广泛的应用前景。本文旨在综述用于红光PeLEDs的材料本质特征,剖析当前面临的技术瓶颈,并探讨一系列创新性的解决方案。特别聚焦于采用共间隔阳离子调控策略、精细分子工程策略、高效钝化技术、原位无机配体引入策略、迁移活化能增强方法、亚稳相结晶优化途径,以及添加剂诱导的晶体重构策略等,以实现高效红光发射的PeLEDs。此外,本文深入阐述了发展低毒性、低环境负担的无铅PeLEDs的迫切需求及其面临的挑战,通过抑制Sn2+离子的氧化倾向、探索新型替代元素以取代铅元素,以及开发无铅双钙钛矿材料等途径,力图提升无铅红光PeLEDs的性能。文章还展示了红光PeLEDs在促进室内植物健康生长及推动柔性显示技术革新等具体领域的实际应用案例。最后,展望了红光PeLEDs领域未来可能遭遇的挑战与潜在的发展方向,为相关领域的科研人员与从业者提供了宝贵的参考与启示。Red perovskite light emitting diodes(PeLEDs)have attracted much attention for their excellent energy saving properties,which can promote plant growth,cell regeneration and metabolic processes,and show a wide range of applications in display technology,lighting systems,agricultural cultivation and medical fields.In this paper,the essential characteristics of materials used in red PeLEDs are reviewed,the current technical bottlenecks are analyzed,and a series of innovative solutions are explored to achieve high efficiency red PeLEDs.Special focus is on strategies such as co-spacer cation regulation,fine molecular engineering,efficient passivation technology,in situ inorganic ligand introduction,migration activation energy enhancement method,metastable phase crystallization optimization approach,additive induced crystal reconstruction strategy.In addition,the urgent need and challenges of developing lead-free PeLEDs with low toxicity and low environmental burden are discussed in depth,trying to improve performance of the lead-free red PeLEDs by inhibiting the oxidation tendency of Sn2+ions,exploring new alternative elements to replace lead,and developing lead-free double perovskite materials.At the same time,the practical application cases of red PeLEDs in the specific fields such as promoting the healthy growth of indoor plants and advancing the innovation of flexible display technology.Finally,the future challenges and potential development direction in the field of red PeLEDs are prospected,which provide valuable reference and inspiration for researchers and practitioners in related fields.

关 键 词：红光钙钛矿发光二极管(PeLEDs) 高效策略 低毒性方法 

分 类 号：TN312.8[电子电信—物理电子学]