Vol. 27, Special Issue, May 2014, pp. 67-74

Abstract: The DC and AC electrical conduction of (ZnO)(X)(CdO)(1-X) thin films were investigated in this work. AC conductivity of (ZnO)(X)(CdO)(1-X) (X=0.2, 0.7) thin films was reported in the frequency range 5 Hz to 13 MHz and at the temperature of 20 °C, 40 °C and 60 °C using impedance spectroscopy. The main results were presented by frequency dependence of complex impedance real and imaginary parts of the samples and by Nycquist diagrams at different temperatures. Thin films electrical properties were determined, proposing an equivalent circuits constituted by resistances and capacities. The relaxation times values of (ZnO)(0.7)(CdO)(0.3) films computed suggested two relaxation process. The AC conductivity dependence on frequency and temperature revealed that a correlated barrier hopping model of the AC conduction was the most probable process in (ZnO)(0.7)(CdO)(0.3) films. Furthermore the calculated dielectric constants depended on frequency and temperature. The interfacial and orientation polarization contributed to the enhancement of the dielectric response of the two composites.

Keywords: Complex impedance spectroscopy, Thin films, ZnO, CdO, AC conductivity.

Click <here> or title of paper to download the full pages article in pdf format

Subscribe the full-page Sensors & Transducers journal in print (paper) or pdf formats

(shipping cost by standard mail for paper version is included)

(25 % discount for IFSA Members)

Alternatively we accept a money transfer to our bank account. Please contact for details: sales@sensorsportal.com

Download <here> the Library Journal Recommendation Form

1999 - 2014 Copyright ©, International Frequency Sensor Association (IFSA) Publishing, S.L. All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn