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Semiconducting 2,6,9,10-Tetrakis(phenylethynyl)anthracene Derivatives: Effect of Substitution Positions on Molecular Energies

Authors
Hur, Jung A.Bae, Suk YoungKim, Kyung HwanLee, Tae WanCho, Min JuChoi, Dong Hoon
Issue Date
15-4월-2011
Publisher
AMER CHEMICAL SOC
Citation
ORGANIC LETTERS, v.13, no.8, pp.1948 - 1951
Indexed
SCIE
SCOPUS
Journal Title
ORGANIC LETTERS
Volume
13
Number
8
Start Page
1948
End Page
1951
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/112653
DOI
10.1021/ol200299s
ISSN
1523-7060
Abstract
2,6-Bis((4-hexylphenyl)ethynyl)-9,10-bis(phenylethynyl)anthracene, 4, and 9,10-bis((4-hexylphenyl)ethynyl)-2,6-bis (phenyl ethynyl)anthracene, 5, have been synthesized to study their electronic and photophysical properties. It should be noted that the difference between these compounds is the substitution position of 1-ethynyl-4-hexylbenzene groups into an anthracene ring. In particular, substitution in the 9,10-positions of the anthracene ring enhanced J-aggregated intermolecular interactions. Since 5 has a lower bandgap energy and more compact film morphology, it exhibited higher hole mobility (similar to 0.27 cm(2) V-1 s(-1)) in thin-film transistor devices.
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