Electrical a.c. conductivity of B2O3xLi2O glass thin films and analysis using the electric modulus formalism

✍ Scribed by P Dzwonkowski; M Eddrief; C Julien; M Balkanski

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 592 KB
• Volume: 8
• Category: Article
• ISSN: 0921-5107
• DOI: 10.1016/0921-5107(91)90038-w

✦ Synopsis

The electrical conductivity of thermally evaporated thin films of the binary glass system B203-xLi20 has been studied. Complex impedance experiments have been carried out on films in a planar configuration using thin film blocking electrodes. The data are described using the electric modulus formalism for which two approaches are investigated. The first model uses a decay function as a fractional exponential function and the second uses the gaussian-like distribution function of the relaxation time. Both are compared with the complex impedance plane method. The experimental complex impedance data are modified by the electrode effect even in the frequency range of the dielectric relaxation. An easy way to calculate the non-modified dielectric parameters is proposed. The imaginary and real parts of the electric modulus are simultaneously treated by the fitting procedure.