发光学报, 2015, 36 (6): 679, 网络出版: 2015-06-25
非掺杂式电荷生成层的结构设计及其在叠层OLED器件中的应用
Structure Design of Charge Generation Layer Without Doping and Its Application in Tandem OLED Devices
摘要
提出了一种非掺杂式电荷生成层：LiF/Al/C60/m-MTDATA,以其制作的叠层有机电致发光器件的最大电流效率和功率效率达到48.4 cd/A和19.4 lm/W,分别是单层发光器件的2.95倍和1.65倍.通过设计一系列含不同电荷生成层的倒置型器件,证实了电荷的生成和分离作用均发生在C60/m-MTDATA界面,同时通过对C60和Al的厚度以及Al蒸镀速率的研究,揭示了电荷生成和分离机制.
Abstract
A new kind of charge generation layer (CGL) without doping: LiF/Al/C60/m-MTDATA was reported in this work,and a series of tandem OLED(TOLED) were fabricated using this new CGL.The TOLED offered a max current-efficiency of 48.4 cd/A and a power-efficiency of 19.4 lm/W,respectively,which increased by 2.95 and 1.65 times compared with the reference device.We also constructed a series of reversed devices with several CGLs,and by exploring the effect of the thicknesses of C60 and Al films and the evaporating ratio of Al on the new CGL,charge generation and dissociation mechanism in the CGL were made clear.
武聪伶, 陈柳青, 景姝, 苗艳勤, 刘慧慧, 白清云, 杨君礼, 李源浩, 李菀丽, 王华, 刘旭光, 许并社. 非掺杂式电荷生成层的结构设计及其在叠层OLED器件中的应用[J]. 发光学报, 2015, 36(6): 679. WU Cong-ling, CHEN Liu-qing, JING Shu, MIAO Yan-qin, LIU Hui-hui, BAI Qing-yun, YANG Jun-li, LI Yuan-hao, LI Wan-li, WANG Hua, LIU Xu-guang, XU Bing-she. Structure Design of Charge Generation Layer Without Doping and Its Application in Tandem OLED Devices[J]. Chinese Journal of Luminescence, 2015, 36(6): 679.
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