Cruciform oligo(phenylenevinylene) with a bipyridine bridge: synthesis, its rhenium(I) complex and photovoltaic properties.
A cruciform-shaped oligo(phenylenevinylene) (OPV) with a phosphorescent rhenium(I) chromophore incorporated at the centre and grafted triphenylamines around the periphery was designed as a new organic photovoltaic material, in which the chelation of rhenium(I) to the cruciform successfully constructs a three-dimensional intramolecular charge transfer system and extends the exciton lifetime; as a result, the rhenium-OPV complex shows a power conversion efficiency almost two times that of the metal ion-free parent compound.
He
Feng
F
State Key Laboratory for Supramolecular Structure and Materials, Jilin University, Changchun, PR China.
Zhou
Yinhua
Y
Liu
Suijun
S
Tian
Leilei
L
Xu
Hai
H
Zhang
Houyu
H
Yang
Bin
B
Dong
Qingfang
Q
Tian
Wenjing
W
Ma
Yuguang
Y
Shen
Jiacong
J