Journal
ORGANIC LETTERS
Volume 13, Issue 8, Pages 1948-1951Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol200299s
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Funding
- Korea Science and Engineering (KOSEF) [R012007000-1128402008]
- Ministry of Education, Science and Technology [NRF20100020209]
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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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