STUDY OF CONDUCTIVITY, OPTICAL CONSTANTS AND SOLID STATE PARAMETERS OF THIOUREA ZINC SULPHATE SINGLE CRYSTALS

Sandhya Ravi, S.Chenthamarai, R.Jayavel

Abstract: In the present paper single crystals of Thiourea Zinc Sulphate (TZS) have been subjected to conductivity studies, determination of optical constants and fundamental parameters. The dielectric constant and dielectric loss were used to calculate the AC conductivity of the grown crystals over a frequency range 50 Hz to 5 MHz at temperatures 313 K, 323 K and 333 K respectively. The activation energies for the conduction process were determined from the Arrhenius plots for different frequencies. The optical constants such as refractive index, reflectance and susceptibility of the TZS single crystals were evaluated from the Ultra violetVisible (UV-Vis) spectrum data. The Plasma energy, Penn gap energy, Fermi energy and polarizability of the grown crystals were estimated theoretically using the single crystal X- ray diffraction (XRD) data.

Keywords: Conductivity, Activation energy, Refractive index, Penn energy, Polarizability.

DOI: https://doi.org/10.15623/ijret.2015.0404081