Abstract
Transient photoconductivity experiments have been carried out on single crystals of polydiacetylene-(bis p-toluene sulfonate), PDA-TS. The low electric field photocurrent decay consists of a temperature-independent fast (picosecond) initial component and a longer time (nanosecond) component with magnitude that is strongly temperature dependent. Using very small spacings between electrodes on the sample, we have succeeded in achieving sweep-out for the longer-lived carriers; the data yield a mobility of H 5 cm2/Vs at room temperature in the ns regime. These results demonstrate that the Onsager geminate recombination model, previously used extensively for the polydiacetylenes, is not applicable to PDA-TS.
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© 1987 Springer-Verlag Berlin Heidelberg
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Moses, D., Sinclair, M., Heeger, A.J. (1987). Photogeneration Mechanism and Mobility in Polydiacetylene. In: Kuzmany, H., Mehring, M., Roth, S. (eds) Electronic Properties of Conjugated Polymers. Springer Series in Solid-State Sciences, vol 76. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83284-0_17
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DOI: https://doi.org/10.1007/978-3-642-83284-0_17
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