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Impedance spectroscopy (IS) and thermally stimulated discharged current (TSDC) studies on CdSe-PVA nanocomposites prepared by ultrasound- assisted method

YASHAR AZIZIAN-KALANDARAGH1,*

Affiliation

  1. Physics Department, Institute for Advanced Studies in Basic Sciences (IASBS), 45195-1159, Zanjan –Iran

Abstract

In the present work, dielectric properties and relaxation process of the CdSe-PVA nanocomposites have been studied using Impedance Spectroscopy (IS) and Thermally Stimulated Discharged Current (TSDC) methods. The temperature dependence of conductivity, dielectric constant and dielectric loss have been studied in temperature range of 298 K to 498K and frequency range from 200Hz to 1MHz. It was found that the nature of polarization processes in pure PVA and CdSe-PVA nanocomposites are different..

Keywords

CdSe, Nanocomposite, Dielectric constant, Dielectric loss, Impedance spectroscopy, TSDC.

Citation

YASHAR AZIZIAN-KALANDARAGH, Impedance spectroscopy (IS) and thermally stimulated discharged current (TSDC) studies on CdSe-PVA nanocomposites prepared by ultrasound- assisted method, Optoelectronics and Advanced Materials - Rapid Communications, 4, 2, February 2010, pp.174-179 (2010).

Submitted at: Jan. 12, 2010

Accepted at: Feb. 2, 2010