Long-lived electronic-deformation excitations in a polyacetylene chain — the photoexcitation spectrum |
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| Authors: | R I Rokitskii D Yu Parashchuk T A Kulakov V M Kobryanskii |
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| Institution: | (1) M. V. Lomonosov Moscow State University, 119899 Moscow, Russia;(2) N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 117977 Moscow, Russia |
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| Abstract: | It is observed that the photoexcitation efficiency of neutral long-lived states in a trans-polyacetylene chain increases with increasing photon energy of the excitation. The observed effect is given an interpretation
according to which the energy of a photon above the optical absorption edge is added to the excitation of the vibrational
subsystem, increasing sharply the probability that the chain relaxes into a long-lived deformed neutral state.
Pis’ma Zh. éksp. Teor. Fiz. 67, No. 10, 765–770 (25 May 1998) |
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