Title: Dibenzo[ a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters.
Authors: Data, Przemyslaw; Pander, Piotr; Okazaki, Masato; Takeda, Youhei; Minakata, Satoshi; Monkman, Andrew P.
Abstract: A new family of thermally activated delayed fluorescence (TADF) emitters based on U-shaped D-A-D architecture with a novel accepting unit has been developed. All investigated compounds have small singlet-triplet energy splitting (Δ EST) ranging from 0.02 to 0.20 eV and showed efficient TADF properties. The lowest triplet state of the acceptor unit plays the key role in the TADF mechanism. OLEDs fabricated with these TADF emitters achieved excellent efficiencies up to 16 % external quantum efficiency (EQE).
Subjects: DELAYED fluorescence; ENERGY dissipation; QUANTUM efficiency; QUANTUM chemistry; FLUORESCENCE; CHEMISTRY
Publication: Angewandte Chemie International Edition, 2016, Vol 55, Issue 19, p5739
ISSN: 1433-7851
Publication type: Academic Journal
DOI: 10.1002/anie.201600113

Dibenzo[ a,j]phenazine-Cored Donor-Acceptor-Donor Compounds as Green-to-Red/NIR Thermally Activated Delayed Fluorescence Organic Light Emitters.

Data, Przemyslaw; Pander, Piotr; Okazaki, Masato; Takeda, Youhei; Minakata, Satoshi; Monkman, Andrew P.