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Dipole reorientation in polymeric layers investigated by photo-induced current

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Polymeric Layers

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 85))

Abstract

Photo-induced currents were studied in poly(n-vinylcarbazole) (PVCa) without external electric field. A polarization of dipoles exists due to corona charging in PVCa. This polarization relaxes to thermal equilibrium after generation of quasi-free charges by a short flash and the transit of these charges through the photoconductor. The relaxation of dipoles causes an opposite anomalous current. For interpretation, a model is developed which takes into consideration a depolarization by dipole reorientation due to the decay of the electric field caused by the charge carrier transit. The measured time-dependence of the anomalous photocurrent can be interpreted by the numerical application of this model.

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Authors and Affiliations

  1. Department of Physics, University Leipzig, Germany

    D. Althausen, P. Wünsche & E. Peškova

  2. Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, Czechoslovakia

    E. Peškova

  3. Sektion Physik, Universität Leipzig, Linnèstr. 5, O-7010, Leipzig, FRG

    D. Althausen

Authors
  1. D. Althausen
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  2. P. Wünsche
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  3. E. Peškova
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P. Wünsche

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© 1991 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Althausen, D., Wünsche, P., Peškova, E. (1991). Dipole reorientation in polymeric layers investigated by photo-induced current. In: Wünsche, P. (eds) Polymeric Layers. Progress in Colloid & Polymer Science, vol 85. Steinkopff. https://doi.org/10.1007/BFb0114813

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  • DOI: https://doi.org/10.1007/BFb0114813

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  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-0886-6

  • Online ISBN: 978-3-7985-1684-7

  • eBook Packages: Springer Book Archive

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