Discharge currents in polymer solids between blocking contacts

Author

Neumann, Werner ; Kasper, Sabine ; Kasper, Roberto

Author_Institution

Dept. of Phys., State Univ. of Brandenburg, Potsdam, Germany

fYear

1991

fDate

25-27 Sep 1991

Firstpage

67

Lastpage

72

Abstract

Discharge currents which are caused by the drift of charge carriers in highly insulating polymer samples were observed. This interpretation is supported by the intensity and the time constant of the relaxation and the nonlinear relationship between stored charge and external field. The investigations were carried out on samples with partially blocking contacts as well as in an arrangement with air gaps between both electrodes and the samples. Thus it is possible to obtain information on the density of charge carriers in the sample materials. The charge distribution in the sample volume can be calculated

Keywords

carrier density; carrier mobility; dielectric relaxation; electrets; electric breakdown of solids; polymers; air gaps; carrier drift; charge distribution; density of charge carriers; discharge currents; electrets; electrodes; external field; highly insulating polymer samples; partially blocking contacts; relaxation time constant; stored charge; Charge carriers; Current measurement; Dielectric materials; Dielectric measurements; Electrodes; Isothermal processes; Plastic insulation; Polymers; Solids; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)

Conference_Location

Berlin

Print_ISBN

0-7803-0112-9

Type

conf

DOI

10.1109/ISE.1991.167184

Filename

167184