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ID 21473
file
creator
Kimura, Keisuke
Lee, Kwang-Hoi
Kunai, Atsutaka
Kwak, Young-Woo
Son, Eun-Chul
Kunugi, Yoshihito
subject
conjugated polymers
luminescence
polythiophene
silole
stille reaction
transition metal chemistry
NDC
Chemistry
abstract
Palladium-catalyzed oxidative homo-coupling of 2,6-bis(tributylstannyl)dithienosiloles with CuCl2 afforded poly(dithienosilole-2,6-diyl)s as novel polythiophene derivatives with intra-chain silicon bridges, which exhibited red-shifted UV absorption maxima by about 100 nm from those of the corresponding silole-free polythiophenes. Alternate copolymers also were prepared by palladium-catalyzed cross-coupling reactions of 2,6-dibromodithienosiloles with distannylthiophene or bithophene. These polymer films were applied to single and double-layered organic electroluminescence devices. It was found that some of the resulting polymers exhibited electroluminescence properties and emitted red light in EL devices with the structure of ITO/polymer/Mg-Ag. Introducing an electron-transporting Alq3 layer between the polymer film and the Mg-Ag cathode led to a remarkable improvement in the devices performance. An application of the copolymer to a field effect transistor was also studied
journal title
Journal of Polymer Science. Part A, Polymer Science
volume
Volume 45
issue
Issue 20
start page
4588
end page
4596
date of issued
2007-10
publisher
Wiley Periodicals, Inc.
issn
0887-624X
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright(c) 2007 Wiley Periodicals, Inc.
relation is version of URL
http://dx.doi.org/10.1002/pola.22196
department
Graduate School of Engineering