摘要
采用半透明的镁银合金阴极成功制备了直流驱动的绿光透明有机电致发光器件,并在此基础上,提出利用半透明的镁银合金中间连接层连接两个发光子单元的新型器件结构,从而成功实现了交流驱动的绿光透明有机电致发光器件。在铟锡氧化物和镁银合金两侧的出光方向上,器件的光谱完全一致,最大亮度分别达到1374 cd/m^(2)和283 cd/m^(2),最高效率分别达到26.1 cd/A(8.1 lm/W)和3.5 cd/A(1.7 lm/W),铟锡氧化物一侧的性能较好是由于铟锡氧化物电极和镁银合金中间连接层的透过率不同形成的。在低频交流电驱动下,器件的两个发光子单元交替发出绿光;而在高频交流电驱动下,由于人眼无法分辨交替点亮时的闪烁,两个发光子单元对于人眼而言则是同时且稳定地发出绿光。
Direct current driven green transparent organic light-emitting device utilizing transparent Mg∶Ag cathode was fabricated.Then,novel device structure employing transparent Mg∶Ag interconnecting layer to connect two light-emitting units was proposed to realize alternating current driven green transparent organic light-emitting device(AC-TOLED).The spectra of AC-TOLED were almost identical in the direction of light output on indium tin oxide(ITO)and Mg∶Ag sides.The maximum brightness was 1374 cd/m^(2)and 283 cd/m^(2),respectively.And the maximum efficiency was 26.1 cd/A(8.1 lm/W)and 3.5 cd/A(1.7 lm/W),respectively.The higher performance of ITO side was caused by the different transmission of ITO electrode and Mg∶Ag interconnecting layer.Under low frequency alternating current,the two light-emitting units of AC-TOLED emitted green light alternately.However,the two light-emitting units of AC-TOLED emitted green light simultaneously for human eyes under high frequency alternating current,because human eyes cannot distinguish the flicker of each unit during alternative emission.
作者
张祥
陈逸凡
刘士浩
张乐天
谢文法
ZHANG Xiang;CHEN Yi-fan;LIU Shi-hao;ZHANG Le-tian;XIE Wen-fa(State Key Laboratory of Integrated Optoelectronics, Jilin University Region,College of Electronic Science and Engineering, Jilin University, Changchun 130012, China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2021年第2期153-157,共5页
Chinese Journal of Luminescence
基金
国家自然科学基金(61774074,61905086)
吉林省科技发展计划(20190101024JH,20200201296JC)资助项目。
关键词
交流驱动
透明
有机发光器件
alternating current driven
transparent
organic light-emitting device
