Premium
22.3: CbzTAZ Hosts in Blue Organic Light Emitting Devices Perform a High Current Efficiency more than 50 cd/A
Author(s) -
Chiu TienLung,
Chen ShinRen,
Hsieh YuShuan,
Leung ManKit,
Wang PoSheng,
Lee JiunHaw,
Ho HsinChia
Publication year - 2015
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.10338
Subject(s) - oled , moiety , carbazole , phosphorescence , common emitter , optoelectronics , materials science , current (fluid) , photochemistry , doping , layer (electronics) , chemistry , nanotechnology , stereochemistry , optics , electrical engineering , fluorescence , physics , engineering
Two novel bipolar carbzol‐triazole derivatives was synthesized by conjugating hole transporting moiety carbazole (Cbz) with electron transporting moiety triazole (TAZ) to achieve the bipolar molecules, which were employed as the hosts of emitting layer doped with blue emitter FIrpic inside blue phosphorescence OLEDs with high current efficiency of 50 and 50.6 cd/A, and EQE of 20% and 21.6%.