Abstract
We have studied the temperature evolution of the optical absorption and Raman scattering spectra of a trans-cis blend of “soluble” polyacetylene in a polyvinylbutyral/butanol mixture. On decreasing temperature a reversible restructuring of the electronic and lattice systems of trans-(CH)x occurs: the electronic energy gap contracts at the high rate of 0.4 meV/K, and the vibrational modes are modified. The experimental data obtained are interpreted in terms of a peculiar interaction of π-conjugated electrons with lattice fluctuations.
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Pis’ma Zh. Éksp. Teor. Fiz. 64, No. 9, 613–617 (10 November 1996)
Published in English in the original Russian journal. Edited by Steve Torstveit.
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Paraschuk, D.Y., Arnautov, S.A., Shchegolikhin, A.N. et al. Temperature evolution of electronic and lattice configurations in highly ordered trans-polyacetylene. Jetp Lett. 64, 658–663 (1996). https://doi.org/10.1134/1.567278
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DOI: https://doi.org/10.1134/1.567278