Absorption current studies in ethyl-cellulose

Author

Datt, S.C. ; Keller, James M. ; Singh, Rajdeep ; Dubey, Richa ; Singh, Rajdeep

Author_Institution

Dept. of Postgrad. Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India

fYear

1991

fDate

25-27 Sep 1991

Firstpage

171

Lastpage

176

Abstract

Absorption currents observed at various temperatures in charging mode with ethyl cellulose (EC) foil samples, prepoled under different field conditions, have been found to follow the I∝t ^-n (i.e., Curie-von Schweidler law) time dependence with different values of n at short and long times. The isochronals have been observed to be characterized with a peak located at 60°C. Activation energy values for this peak are observed to vary from 0.5 to 2.4 eV. In some cases the observed current tends to increase with time in the longer-time region, indicating the possibility of the existence of a peak at still longer times, similar to that found in space-charge-limited transients

Keywords

dielectric polarisation; dielectric thin films; electrets; electrical conductivity of crystalline semiconductors and insulators; foils; organic compounds; Curie-von Schweidler law; absorption currents; activation energy; charging mode; electret; ethyl cellulose; foil samples; isochronals; prepoled samples; time dependence; Absorption; Charge carriers; Chemicals; Electrodes; Glass; Optical films; Polymers; Space charge; Steady-state; Temperature dependence;

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.1991.167204

Filename

167204