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Controlling Synergistic Oxidation Processes for Efficient and Stable Blue Thermally Activated Delayed Fluorescence Devices
Author(s) -
Cui LinSong,
Deng YaLi,
Tsang Daniel PingKuen,
Jiang ZuoQuan,
Zhang Qisheng,
Liao LiangSheng,
Adachi Chihaya
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201602127
Subject(s) - materials science , fluorescence , nanotechnology , chemical engineering , photochemistry , optics , chemistry , physics , engineering
Efficient sky‐blue organic light‐emitting diodes (OLEDs) employing thermally activated delayed fluorescence (TADF) display a three orders of magnitude increase in lifetime, which is superior to those of controlled phosphorescent OLEDs used in this study. The combination of electro‐oxidation and photo‐oxidation of the TADF emitters in their triplet excited‐states is suppressed through molecule design and device engineering.