Sensitized photoconduction in a polydiacetylene crystal (DCHD) |
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| Authors: | K Lochner H Bassler L Sebastian G Weiser G Wegner V Enkelmann |
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| Institution: | Fachbereich Physikahsche Chemie der PhiIipps-Universitat, D-3550 Marburg, FRG;Fachbereich Physik der Phihpps-Universität D-3550 Marburg, FRG;Institut fur Makromolekulare Chemie der Universität, D-7800 Freiburg, FRG |
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| Abstract: | The photoconductivity of DCHD displays a maximum near 3.6 eV coinciding with the maximum of the So → S1 absorption of the carbazole group. It is attributed to a sensitization involving charge transfer from the excited chromophore to the chain. The rate constant for non-radiative decay of the carbazole singlet due to energy transfer to the chain is 1.6 × 1013 s?1, and for charge transfer ≈ 3 × 1011 s?1. |
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