The design of dual emitting cores for green thermally activated delayed fluorescent materials.
Dual emitting cores for thermally activated delayed fluorescent (TADF) emitters were developed. Relative to the corresponding TADF emitter with a single emitting core the TADF emitter with a dual emitting core, 3,3',5,5'-tetra(carbazol-9-yl)-[1,1'-biphenyl]-2,2',6,6'-tetracarbonitrile, showed enhanced light absorption accompanied by a high photoluminescence quantum yield. The quantum and power efficiencies of the TADF devices were enhanced by the dual emitting cores.
Department of Polymer Science and Engineering, Dankook University, 152, Jukjoen-ro, Suji-gu, Yongin, Gyeonggi, 448-701 (Korea).
Yong Joo
YJ
Cho
Sang Kyu
SK
Jeon
Byung Doo
BD
Chin
Eunsun
E
Yu
Jun Yeob
JY
Lee
fluorescence; fluorescent materials; photochemistry; photoluminescence; quantum efficiency