TY - JOUR
T1 - Conjugated asymmetric donor-substituted 1,3,5-triazines
T2 - New host materials for blue phosphorescent organic light-emitting diodes
AU - An, Zhong Fu
AU - Chen, Run Feng
AU - Yin, Jun
AU - Xie, Guo Hua
AU - Shi, Hui Fang
AU - Tsuboi, Taiju
AU - Huang, Wei
PY - 2011/9/19
Y1 - 2011/9/19
N2 - Conjugated asymmetric donor-substituted 1,3,5-triazines (ADTs) have been synthesized by nucleophilic substitution of organolithium catalyzed by [Pd(PPh3)4]. Theoretical and experimental investigations show that ADTs possess high solubility and thermostability, high fluorescent quantum yield (35 %), low HOMO (-6.0 eV) and LUMO (-2.8 eV), and high triplet energy (ET, 3.0 eV) according to the different substitution pattern of triazine. The application as host materials for blue PHOLEDs yielded a maximum current efficiency of 20.9 cd A-1, a maximum external quantum efficiency of 9.8 %, and a brightness of 9671 cd m-2 at 5.4 V, making ADTs good candidates for optoelectronic devices.
AB - Conjugated asymmetric donor-substituted 1,3,5-triazines (ADTs) have been synthesized by nucleophilic substitution of organolithium catalyzed by [Pd(PPh3)4]. Theoretical and experimental investigations show that ADTs possess high solubility and thermostability, high fluorescent quantum yield (35 %), low HOMO (-6.0 eV) and LUMO (-2.8 eV), and high triplet energy (ET, 3.0 eV) according to the different substitution pattern of triazine. The application as host materials for blue PHOLEDs yielded a maximum current efficiency of 20.9 cd A-1, a maximum external quantum efficiency of 9.8 %, and a brightness of 9671 cd m-2 at 5.4 V, making ADTs good candidates for optoelectronic devices.
KW - asymmetric architectures
KW - conjugation
KW - donor-acceptor systems
KW - lithium
KW - organic light-emitting diodes
KW - phosphorescence
UR - http://www.scopus.com/inward/record.url?scp=80052838719&partnerID=8YFLogxK
U2 - 10.1002/chem.201101118
DO - 10.1002/chem.201101118
M3 - 文章
AN - SCOPUS:80052838719
SN - 0947-6539
VL - 17
SP - 10871
EP - 10878
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 39
ER -