湿法有机电致发光器件:结构、器件物理及制备工艺  

Solution processed organic light-emitting devices:structure,device physics and fabrication process

作　　者：刘士浩 张乐天[1] 谢文法[1] Liu Shihao;Zhang Letian;Xie Wenfa(State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun,Jilin 130012,China)

机构地区：[1]吉林大学电子科学与工程学院,集成光电子学国家重点实验室吉林大学实验区,吉林长春130012

出　　处：《光电工程》2022年第5期1-13,共13页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(61905086,62174067,62175085);吉林省自然科学基金资助项目(20190101024JH,20200201296JC)。

摘　　要：有机电致发光器件(OLED)在照明领域的产业化发展仍然受到高成本的制约,而湿法OLED可显著降低制造成本。但是,相比于热蒸镀OLED,湿法OLED在构建多层薄膜体系上面临更大的挑战。鉴于已有相关综述从材料工程角度对湿法OLED进行了总结,本文将主要从器件物理和制备工艺方面对湿法OLED进行概述。首先从器件载流子动力学和光物理角度分析各功能层的必要性。接着介绍常用的湿法薄膜制备工艺,并讨论制备多层湿法薄膜所涉及的问题。最后对湿法OLED的发展进行了展望。The industrialization of organic light-emitting devices(OLEDs)in the field of lighting still faces the challenge of high costs,while solution-processed OLEDs can dramatically reduce their manufacturing cost.However,compared with thermally evaporated OLEDs,solution-processed OLEDs encounter difficulty in building multilayer systems.As the relevant reviews on solution-processed OLED from the perspective of material engineering have been proposed,this paper will mainly summarize multilayer structures of solution-processed OLED from the aspects of device physics and preparation processes.First,we will analyze the necessity of each functional layer based on the carrier/exciton dynamics and optical physics.Next,we will introduce the commonly used solution-processing techniques and discuss the problems involved in the preparation of multilayer films.Finally,we will present the future prospects of solution-processed OLEDs.

关 键 词：湿法有机电致发光器件 多层结构 湿法制备工艺 电流平衡性 金属-电介质界面表面等离子体共振吸收 

分 类 号：TN383.1[电子电信—物理电子学]