Abstract
The decay behavior of photogenerated charged solitons in trans-polyacetylene has been observed with a newly constructed microsecond time-resolved infrared spectrometer in the temperature range 77–240 K. A unimolecular decay ascribable to geminate recombination is dominant at 77 K, while bimolecular decay processes become more significant at higher temperatures. This characteristic temperature dependence of the decay behavior is discussed in relation to known temperature-dependent photoconductivity of trans-polyacetylene and its microscopic mechanism.
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