Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3065267
Keywords
excitons; long-range order; molecular electronics; polymers
Funding
- European Commission (EC) [MRTN-CT-2006-035884, NMP-CT-2006-016434]
- Spanish Ministry for Science and Education
- Belgian National Science Foundation [2.4560.00]
- Belgian Federal Science Policy Office
- FRIA (Fonds pour la Formation la Recherche dans l'Industrie et dans l'Agriculture)
Ask authors/readers for more resources
We demonstrate that for a range of phenylene- and thiophene-based conjugated polymers of practical relevance for optoelectronic applications, exciton couplings in one-dimensional stacks deviate significantly from the nearest neighbor approximation. Instead, long-range interactions with non-nearest neighbors have to be included, which become increasingly important with growing oligomer size. While the exciton coupling vanishes for infinitely long ideal polymer chains and provides a sensitive measure of the actual conjugation length, the electronic coupling mediating charge transport shows rapid convergence with molecular size. Similar results have been obtained for very different molecular backbones, thus highlighting the general character of these findings.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available