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research article
Optical gap in herringbone and pi-stacked crystals of [1]benzothieno[3,2-b]benzothiophene and its brominated derivative
2014
The optical gap of the organic semiconductor [1]benzothieno[3,2-b]benzothiophene and its 2,7-dibrominated analogue is measured in solution and in the crystalline state by means of UV-vis and emission spectroscopy. Bromination leads to a change in molecular packing from herringbone to pi-stacked, resulting in a marked shift in the absorption and emission spectra which is found to be in accordance with TDDFT calculations.
Type
research article
Web of Science ID
WOS:000341569200003
Authors
Publication date
2014
Publisher
Published in
Volume
16
Issue
32
Start page
7389
End page
7392
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 23, 2014
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