High luminance/efficiency monochrome and white organic light emitting diodes based pure exciplex emission

被引：14

作者：

Dong, Bizheng ^{[1
]}

Yan, Jiakui ^{[1
]}

Li, Guozheng ^{[1
]}

Xu, Yabo ^{[1
]}

Zhao, Bo ^{[1
]}

Chen, Liuqing ^{[1
,2
]}

Wang, Hua ^{[1
,3
]}

Li, Wenlian ^{[4
]}

机构：

[1] Taiyuan Univ Technol, Key Lab Interface Sci, Engn Adv Mat Minist Educ, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

[3] Taiyuan Univ Technol, Coll Text Engn, Taiyuan 030024, Peoples R China

[4] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China

来源：

ORGANIC ELECTRONICS | 2022年 / 106卷

基金：

中国国家自然科学基金;

关键词：

WOLED; Pure exciplex; Spacer; RISC; EFFICIENCY; PERFORMANCE; OLEDS;

D O I：

10.1016/j.orgel.2022.106528

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, high luminance and high efficiency monochrome and white organic light emitting diodes (OLED) based pure exciplex emission were realized by the application of spacer. First, monochrome exicplex OLED based blue (26DCzPPy:PO-T2T) and yellow (DMAC-MPM:PO-T2T) emission were studied. Then the pure exciplex WOLED based blue and yellow exciplex complementary colors were designed with three spacer materials of DMAC-MPM, 26DCzPPy and DPEPO, respectively. At last, orange exciplex of TAPC:PO-T2T was applied to replace DMAC-MPM:PO-T2T with 26DCzPPy as spacer to construct pure exciplex WOLED. As results, all the pure exciplex WOLED of W1-W4 achieved a high maximum luminance of -10000 cd m(-2), current efficiency of -20 cd A-1, power efficiency of-20 lm W-1 and external quantum efficiency of -8%, respectively. As far as we know from literature review, our WOLED with the maximum luminance and efficiency were one of the best among the pure exciplex emission WOLED. The high performances were derived from the high efficiency monochrome exciplex and spacer selection and application.

引用

页数：8

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