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Dielectric properties of CdS-PVA nanocomposites prepared by ultrasound-assisted method

Y. AZIZIAN-KALANDARAGH1,*

Affiliation

  1. Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran

Abstract

The electric and dielectric properties of ultrasound-assisted synthesized CdS nanocrystals-PVA mixture were studied in temperature range of 298 K to 498 K and frequency range from 200 Hz to 1 MHz. Scanning Electron Microscopy (SEM) shows that the morphology of CdS nanoclusters are formed in the form of mostly spherical nanoparicles with average size 10 nm. It was found that the nature of polarization processes in pure PVA and CdS-PVA nanocomposites are different. This is due to interfacial polarization in nanocompisites.

Keywords

CdS, Nanocomposite, Dielectric constant, Dielectric loss, Impedance Spectroscoy.

Citation

Y. AZIZIAN-KALANDARAGH, Dielectric properties of CdS-PVA nanocomposites prepared by ultrasound-assisted method, Optoelectronics and Advanced Materials - Rapid Communications, 4, 11, November 2010, pp.1655-1658 (2010).

Submitted at: Oct. 21, 2010

Accepted at: Nov. 10, 2010