A twisted polydiacetylene quantum wire: Influence of conformation on excitons in polymeric quasi-1D systems
Other Condensed Matter
2009-12-17 v1
Abstract
Highly luminescent isolated polydiacetylene (PDA) chains in a new diacetylene crystal are studied. The diacetylene crystal structure and theoretical calculations suggest that the chains are not planar and more strongly twisted than any known PDA. Yet the chains behave as quasi perfect quantum wires, showing that this behaviour is generic among PDA, provided crystal order is high enough. The exciton energy, E0, is higher than in any other well ordered PDA providing a relationship between E0 and twist angle. On the other hand the exciton binding energy and Bohr radius are significantly affected as demonstrated in electroabsorption experiments (and developed in a companion paper).
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Cite
@article{arxiv.0912.3062,
title = {A twisted polydiacetylene quantum wire: Influence of conformation on excitons in polymeric quasi-1D systems},
author = {Antoine Al Choueiry and Thierry Barisien and Jéremy Holcman and Laurent Legrand and Michel Schott and Gerhardt Weiser and Mirela Balog and Jérome Deschamps and Sylvain Dutremez and Jean-Sébastien Filhol},
journal= {arXiv preprint arXiv:0912.3062},
year = {2009}
}
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