喷墨打印量子点电致发光显示关键材料与技术的前世与今生  

Historical Evolution and Current Status of Key Materials and Technologies in Inkjet-printed Quantum Dot Electroluminescent Displays

作　　者：刘辰 魏昌庭 罗鑫 孙智国 徐勃 曾海波[1] LIU Chen;WEI Changting;LUO Xin;SUN Zhiguo;XU Bo;ZENG Haibo(MIIT Key Laboratory of Advanced Display Materials and Devices,Jiangsu Engineering Research Center for Quantum Dot Display,Institute of Optoelectronics&Nanomaterials,School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;School of Chemistry and Chemical Engineering,Anshun University,Anshun 561000,China)

机构地区：[1]南京理工大学材料科学与工程学院,江苏省量子点显示工程研究中心,新型显示材料与器件工信部重点实验室,纳米光电材料研究所,江苏南京210094 [2]安顺学院化学化工学院,贵州安顺561000

出　　处：《发光学报》2024年第9期1410-1430,共21页Chinese Journal of Luminescence

基　　金：国家自然科学基金(62404104,22279059);江苏省自然科学基金(BK20241465);江苏省卓越博士后计划(2023ZB844);中国博士后面上项目(2023M731687);江苏省国际科技合作项目(BZ2024038);中央高校基本科研专项基金(30921011106);贵州省教育厅高等学校科学研究项目(黔教技〔2022〕323)。

摘　　要：胶体半导体量子点因其独特的纳米级传输效应、自发光特性以及与大面积工业印刷工艺兼容的流变学属性而备受学术界和工业界的关注。喷墨打印作为一种新兴技术,有望实现新一代可印刷、大面积、高性能图案化量子点发光二极管(QLED)。然而,目前喷墨打印QLED的制备过程存在墨水配方不当造成的界面侵蚀以及成膜后发光效率降低等问题,导致其性能与旋涂器件存在较大差距。本文首先概述了量子点显示技术的基本概念及发展现状,分析了三种喷墨打印技术的分类、原理及其优缺点。然后介绍了含镉、含铅和无铅无镉三类量子点,分析了它们在喷墨打印QLED中的研究进展,接着重点介绍了利用喷墨打印实现高性能QLED的几种典型策略,最后展望了喷墨打印QLED的发展趋势和美好前景。Colloidal semiconductors have garnered significant attention in academia and industry due to their unique nanoscale transport effects,self-luminous properties,and rheological characteristics compatible with large-ar-ea industrial printing processes.Inkjet printing,as an emerging technology,is expected to usher in a new generation of printable,large-area,high-performance patterned quantum dot light-emitting diodes(QLEDs).Nonetheless,the current preparation process of inkjet-printed QLEDs faces challenges related to interfacial erosion caused by improper quantum dots(QDs)ink formulation and reduced luminescence efficiency after film formation,leading to a signifi-cant performance gap compared to spin-coated devices.This review begins by outlining the fundamental concepts and development status of QDs display technology,followed by an analysis of the classification,principles,advantag-es,and disadvantages of the three inkjet printing technologies.It then introduces three types of QDs containing cadmium,lead,and cadmium-free materials,analyses their research progress in inkjet-printed QLEDs,and focuses on three typical strategies for achieving high-performance QLEDs using inkjet printing.Finally,this work looks for-ward to the development trends and promising prospects of inkjet-printed QLEDs.

关 键 词：量子点 喷墨印刷 电致发光二极管 墨水工程 表界面调控 

分 类 号：TN312.8[电子电信—物理电子学] TN383.1[理学—固体物理] O482.31[理学—物理]