Dresden 2006 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 6: Electronic Structure and Spectroscopy I
CPP 6.1: Vortrag
Montag, 27. März 2006, 14:30–14:45, ZEU 114
Energy-transfer of the organic donor-acceptor system triphenyldiamine-perylenebisimide studied by time-resolved spectroscopy — •Christiane Scharf1, Katja Peter2, Peter Bauer2, Christoph Jung1, Mukundan Thelakkat2, and Jürgen Köhler1 — 1Department of Experimental Physics IV and BIMF, University of Bayreuth, D-95440, Germany — 2Department of Macromolecular Chemistry I and BIMF, University of Bayreuth, D-95440, Germany
We investigated energy transfer processes in the organic donor-acceptor system triphenyldiamine-perylenebisimide employing time-resolved spectroscopy. In order to do so, the fluorescence lifetimes of the isolated components have been determined as a function of the concentration of the chromophores and as a function of the polarity of the solvent. Subsequently, energy-transfer experiments were conducted in a solution of free donors and free acceptors. The results of these experiments are in reasonable agreement with predictions based on Förster theory. Finally, experiments were performed on donor-acceptor systems covalently bound by a C12H24-linker.