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Regensburg 2013 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 24: Organic Semiconductors

CPP 24.8: Talk

Wednesday, March 13, 2013, 11:45–12:00, H40

Triplet state kinetics of anthracen studied by pulsed electron paramagnetic resonance — •Silvia Domingo Köhler, Sebastian Höfel, and Malte Drescher — Universität Konstanz, 78457 Konstanz, Germany

Photoexcited triplet states (total spin S = 1) of anthracen in a glassy toluene matrix were investigated using pulsed UV-laser photoexcitation and pulsed EPR spectroscopy. The optical spin polarization was studied time dependently resulting in the determination of the triplet lifetime and the triplet relaxation rates between the high-field eigenstates. The relative triplet state populations in zero-field and high-field are quantitatively analyzed. The kinetics of the triplet states were measured for different orientations of the molecule.

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