Photoinduced Infrared Activity in Polyacetylene
Z. Valy VardenyDepartment of Physics and Solid State Institute, Technion, 32 000, IsraelJ. OrensteinDepartment of Physics and Solid State Institute, Technion, 32 000, IsraelG. L. BakerDepartment of Physics and Solid State Institute, Technion, 32 000, Israel
1983en
ABI
Abstract
Photoexcitation of trans - but not cis -polyacetylene, results in the appearance of strongly-ir-active local modes at 1370 and 1260 ${\mathrm{cm}}^{\ensuremath{-}1}$. This observation demonstrates that the photogeneration of self-localized charge carriers is unique to the trans isomer. In spite of their localization the kinetic mass of these photocarriers is small, ${M}_{c}\ensuremath{\simeq}(1\ensuremath{-}2.5)m$, a result which is in quantitative agreement with calculations based on single-chain models.
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Cited by 20 references