Synthesis, characterization, and bipolar transporting behavior of a new twisted polycyclic aromatic hydrocarbon: 1',4'-diphenyl-naphtho-(2'.3':1.2)-pyrene-6'-nitro-7'-methyl carboxylate.
An asymmetric twistacene, 1',4'-diphenyl-naphtho-(2'.3':1.2)-pyrene-6'-nitro-7'-methyl carboxylate (tetracene 2), was synthesized by using benzyne-trapping chemistry. Its structure, determined by X-ray crystallography, confirmed that this material has a twisted topology with torsion angles as high as 23.8(3) degrees. Organic light-emitting devices using tetracene 2 as either charge-transporting materials or emitters have been fabricated. The results indicate that this material has bipolar transporting behavior in these devices.
Zhang
Qichun
Q
School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. qczhang@ntu.edu.sg
Divayana
Yoga
Y
Xiao
Jinchong
J
Wang
Zhijuan
Z
Tiekink
Edward R T
ER
Doung
Hieu M
HM
Zhang
Hua
H
Boey
Freddy
F
Sun
Xiao Wei
XW
Wudl
Fred
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