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Blue Oleds: High‐Efficiency Blue Organic Light‐Emitting Diodes Based on Thermally Activated Delayed Fluorescence from Phenoxaphosphine and Phenoxathiin Derivatives (Adv. Mater. 23/2016)
Author(s) -
Lee Sae Youn,
Adachi Chihaya,
Yasuda Takuma
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.201670160
Subject(s) - materials science , oled , electroluminescence , fluorescence , photochemistry , exciton , optoelectronics , photoluminescence , acceptor , diode , nanotechnology , optics , chemistry , physics , layer (electronics) , quantum mechanics , condensed matter physics
High‐performance blue thermally activated delayed fluorescence (TADF) emitters containing a phenoxaphosphine oxide or phenoxathiin dioxide acceptor unit coupled with a dimethylacridan donor unit are developed by T. Yasuda and co‐workers, as desribed on page 4626. These emitters can allow efficient up‐conversion of triplet excitons into singlet excitons, leading to both photoluminescence and internal electroluminescence quantum efficiencies of up to nearly 100%.