Berlin 2001 – wissenschaftliches Programm
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CPP: Chemische Physik und Polymerphysik
CPP 16: Poster: Dynamics of Molecular Systems, Polymer Dynamics, Glass Transition, Crystallization, Electronic Properties of Polymers
CPP 16.33: Poster
Montag, 2. April 2001, 12:30–15:00, AT1
Photoconductivity of photorefractive polymers — •Lazar Kulikovsky1, Dieter Neher1, Erwin Mecher2, Klaus Meerholz2, Thomas Daeubler3, and Vera Cimrova4 — 1University of Potsdam, Institute of Physics, Am Neuen Palais 10, 14469 Potsdam — 2Ludwig-Maximilians-University, Department of Chemistry (Physical Chemistry), Butenandtstr. 11, 81377 Muenchen — 3IBM SSD Mainz, Postfach 2540, 55015 Mainz — 4Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 16206 Prague 6, Czech Republic
This contribution discusses recent investigations of the photoconductivity of PVK-based photorefractive polymers. In contrast to earlier studies, the measurement range has been expanded to over 3 orders of magnitude in electric field and light intensity. The data were analyzed with respect to trap densities as function of field and temperature, using a modification of Schildkrauts model. Predictions were made concerning the field-and intensity dependent PR response and compared to the results of degenerate-four-wave-mixing experiments.