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Unlocking the Potential of Pyrimidine Conjugate Emitters to Realize High‐Performance Organic Light‐Emitting Devices
Author(s) -
Komatsu Ryutaro,
Sasabe Hisahiro,
Nakao Kouhei,
Hayasaka Yuya,
Ohsawa Tatsuya,
Kido Junji
Publication year - 2017
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.201600675
Subject(s) - conjugate , common emitter , materials science , pyrimidine , conjugated system , optoelectronics , fluorescence , photochemistry , optics , polymer , chemistry , stereochemistry , mathematical analysis , mathematics , physics , composite material
A series of pyrimidine‐conjugated thermally activated delayed fluorescent (TADF) emitters is developed. Using a highly emissive green pyrimidine conjugate emitter and sophisticated device engineering, the optimized device operates on 2.2 V at 1 cd m −2 and exhibits a superior performance with an η ext of over 25%, an η p of over 110 lm W −1 , and exceptionally low efficiency roll‐off.