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19‐2: Invited Paper: Design of Multi‐Resonance Thermally Activated Delayed Fluorescence Materials for Organic Light‐Emitting Diodes
Author(s) -
Madayanad Suresh Subeesh,
Duda Eimantas,
Kahle Frank-Julian,
Hall David,
Bagnich Sergey,
Bässler Heinz,
Beljonne David,
Olivier Yoann,
Köhler Anna,
Zysman-Colman Eli
Publication year - 2021
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14654
Subject(s) - oled , excimer , fluorescence , optoelectronics , materials science , diode , resonance (particle physics) , solid state , excitation , photochemistry , light emitting diode , chemistry , nanotechnology , optics , layer (electronics) , atomic physics , electrical engineering , physics , engineering
The development of near UV‐emitting materials will be presented. A novel ladder‐like multiresonant thermally activated delayed fluorescence (TADF) compound was studied in the solid state. The compound shows narrow near UV‐emission centered at 395 nm of optical excitation and at 410 nm in an OLED; however, the efficiency remains low. Photophysical studies reveal the presence of aggregate or excimer‐like species that seem to provide an additional loss channel.