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Ac conductivity and dielectric measurements of bulk pyronine G(Y)

Published online by Cambridge University Press:  15 December 2009

S. J. Yaghmour
S. J. Yaghmour*
Affiliation:
Physics Department, Faculty of Science, King Abdul Aziz University, Jeddah, Saudi Arabia
*
dr_saudjy@yahoo.co.uk
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Abstract

Electrical conductivity measurements of pyronine G(Y) were performed as a function of both temperature (303–443 K) and frequency (50 Hz–550 kHz). The frequency dependence of ac conductivity is well represented by the form ωs. The values of exponent, (s) decrease from 0.98 at 303 K to 0.67 at 403 K. The temperature dependence of both ac electrical conductivity and the exponent (s) reveals that the ac conduction is due to the correlated barrier hopping (CBH). The dielectric constant, ε1(ω), and dialectic loss, ε2(ω), have been determined for bulk pyronine G(Y). Both ε1(ω) and ε2 (ω) decrease by increasing frequency and increase by increasing temperature.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 49 , Issue 1: 17th International Colloquium on Plasma Processes (CIP 2009) , January 2010 , 10402
Copyright
© EDP Sciences, 2009

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