TITLE

The effect of annealing time on thermally stimulated discharge current of corona-charged ethyl cellulose

AUTHOR(S)
Gaur, Mulayam; Singh, Reeta; Singh, Pramod; Indolia, Ajay; Singh, Ranjit
PUB. DATE
February 2011
SOURCE
Journal of Thermal Analysis & Calorimetry;Feb2011, Vol. 103 Issue 2, p679
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Short circuit thermally stimulated discharge current (TSDC) has been recorded in corona-charged ethyl cellulose foil samples at different annealing time. An analysis of the data reveals significant changes in the TSDC curves of the samples as a function of annealing time. The possible relaxation processes accounting for the changes are discussed, not only a shift of peak temperature of the observed peak to higher temperatures, but also a lowering in its height has been observed with increase in annealing time. Peak temperature higher than 343 K did not arise even for the annealing time of 240 h. The activation energy ( A) has been found to increase, while the trapped charge carrier n decrease with increase in annealing time. Linear relationship between ln A and n indicated an exponential distribution of traps.
ACCESSION #
57676898

 

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