EFFECT OF INTERCHAIN COUPLING ON POLARON STABILITY AND OTHER PROPERTIES

Authors
CONWELL EM MIZES HA
Citation
Em. Conwell et Ha. Mizes, EFFECT OF INTERCHAIN COUPLING ON POLARON STABILITY AND OTHER PROPERTIES, Synthetic metals, 57(2-3), 1993, pp. 4284-4289
Citations number
18
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Mining
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
57
Issue
2-3
Year of publication
1993
Pages
4284 - 4289
Database
ISI
SICI code
0379-6779(1993)57:2-3<4284:EOICOP>2.0.ZU;2-D
Abstract
Recent three-dimensional band structure calculations on trans-polyacet ylene and poly(phenylene vinylene) have corroborated the suggestion th at interchain coupling is too strong in these materials for polarons t o exist. Nevertheless there is evidence that polarons do exist in thes e materials. We show that conjugation breaks, by decreasing the effect ive interchain coupling, allow the existence of polarons. The effect o f such breaks on optical absorption and hopping transport of polarons is discussed.