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Optical absorption spectra of linear and cyclic thiophenes—selection rules manifestation |
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| Authors: | Mariusz Bednarz Peter Reineker Elena Mena-Osteritz Peter Buerle |
| Institution: | aAbteilung Theoretische Physik, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany bAbteilung Organische Chemie II, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany |
| Abstract: | We theoretically study the size-dependent relation between absorption spectra of thiophene-based oligomers and the corresponding cyclothiophenes. In our approach based on a Frenkel exciton Hamiltonian, we demonstrate that the geometry and selection rules determine the observed relations between the spectra. |
| Keywords: | Oligothiophenes Cyclothiophenes Frenkel excitons Optical absorption |
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