Charge carrier transport in polyethylene studied by surface potential kinetics

  • H. von Berlepsch
Conference paper
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 78)


Based on measurements of the isothermal U(t) and thermally stimulated surface potential decay TSCD, the charge carrier transport in HDPE is investigated. A simple mathematical model for describing the isothermal surface potential kinetics is presented, involving hopping transport of injected charge carriers being modulated by shallow and deep traps at the surface and in the bulk. The model parameters charge carrier mobility, hopping distance, trap concentration, trap depth and attempt-to-escape frequency were determined by curve fitting. Additional details of the energetic structure of traps are obtained from the TSCD investigations. The dependence of mobility and lifetime on the field strength is discussed.

Key words

Polyethylene surface potential kinetics charge carrier mobility trap parameters 


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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1998

Authors and Affiliations

  • H. von Berlepsch
    • 1
  1. 1.Institut für Polymerenchemie “Erich Correns”Akademie der Wissenschaften der DDRTeltow-SeehofG.D.R.

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