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 (̃0.27 cm2 V-1 s-1) in thin-film transistor devices.
Original language | English |
---|---|
Pages (from-to) | 1948-1951 |
Number of pages | 4 |
Journal | Organic Letters |
Volume | 13 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2011 Apr 15 |
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry