Management of Singlet and Triplet Excitons: A Universal Approach to High‐Efficiency All Fluorescent WOLEDs with Reduced Efficiency Roll‐Off Using a Conventional Fluorescent Emitter | Zendy

Wu Zhongbin | Zendy; Yu Ling | Zendy; Zhou Xiaokang | Zendy; Guo Qingxun | Zendy; Luo Jiajia | Zendy; Qiao Xianfeng | Zendy; Yang Dezhi | Zendy; Chen Jiangshan | Zendy; Yang Chuluo | Zendy; Ma Dongge | Zendy

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Management of Singlet and Triplet Excitons: A Universal Approach to High‐Efficiency All Fluorescent WOLEDs with Reduced Efficiency Roll‐Off Using a Conventional Fluorescent Emitter

Author(s) -

Wu Zhongbin,

Yu Ling,

Zhou Xiaokang,

Guo Qingxun,

Luo Jiajia,

Qiao Xianfeng,

Yang Dezhi,

Chen Jiangshan,

Yang Chuluo,

Ma Dongge

Publication year - 2016

Publication title -

advanced optical materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.89

H-Index - 91

ISSN - 2195-1071

DOI - 10.1002/adom.201600117

Subject(s) - fluorescence , common emitter , oled , quantum efficiency , exciton , materials science , electrical efficiency , optoelectronics , nanotechnology , power (physics) , optics , physics , layer (electronics) , quantum mechanics

High‐efficiency all‐fluorescent white organic light‐emitting diodes (WOLEDs) are demonstrated by employing a blue thermally activated delayed fluorescent as the host or assistant dopant and a conventional orange emitter. The resulting warm WOLEDs, using thermally activated delayed fluorescence as the host, show a record external quantum efficiency of 14.0% and a power efficiency of 48.0 lm W −1 , together with an extremely low efficiency roll‐off.

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