TY - JOUR
T1 - High triplet energy host materials for blue phosphorescent organic light-emitting diodes derived from carbazole modified orthophenylene
AU - Lee, Dong Ryun
AU - Lee, Chil Won
AU - Lee, Jun Yeob
PY - 2014/9/21
Y1 - 2014/9/21
N2 - Carbazole modified orthophenylene compounds, 9-([1,1′:2′, 1′′-terphenyl]-3-yl)carbazole (Cz-Ter), 9-([1,1′:2′, 1′′:2′′,1′′′-quaterphenyl]-3-yl) carbazole (Cz-Quat), 9-([1,1′:2′,1′′:2′′, 1′′′:2′′′,1′′′′- quinquephenyl]-3-yl)carbazole (Cz-Quin), were synthesized as host materials for blue phosphorescent organic light emitting diodes. The carbazole modified orthophenylene based host materials showed high triplet energy of above 2.90 eV and there was no reduction of triplet energy according to the increase in the number of phenyl units of the orthophenylene moieties. Cz-Ter, Cz-Quat and Cz-Quin showed maximum quantum efficiencies of 16.2%, 17.3% and 20.9% in blue PHOLEDs, respectively. This journal is
AB - Carbazole modified orthophenylene compounds, 9-([1,1′:2′, 1′′-terphenyl]-3-yl)carbazole (Cz-Ter), 9-([1,1′:2′, 1′′:2′′,1′′′-quaterphenyl]-3-yl) carbazole (Cz-Quat), 9-([1,1′:2′,1′′:2′′, 1′′′:2′′′,1′′′′- quinquephenyl]-3-yl)carbazole (Cz-Quin), were synthesized as host materials for blue phosphorescent organic light emitting diodes. The carbazole modified orthophenylene based host materials showed high triplet energy of above 2.90 eV and there was no reduction of triplet energy according to the increase in the number of phenyl units of the orthophenylene moieties. Cz-Ter, Cz-Quat and Cz-Quin showed maximum quantum efficiencies of 16.2%, 17.3% and 20.9% in blue PHOLEDs, respectively. This journal is
UR - https://www.scopus.com/pages/publications/84906089637
U2 - 10.1039/c4tc00857j
DO - 10.1039/c4tc00857j
M3 - Article
AN - SCOPUS:84906089637
SN - 2050-7534
VL - 2
SP - 7256
EP - 7263
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 35
ER -