TITLE:
Growth, Optical, Mechanical and Dielectric Properties of Glycine Zinc Chloride NLO Single Crystals
AUTHORS:
S. Suresh, D. Arivuoli
KEYWORDS:
Solution growth, Single crystal XRD, Optical transmission, Dielectric constant and loss, Photoconductivity.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.10 No.12,
October
10,
2011
ABSTRACT: Single crystals of Glycine Zinc Chloride (GZC) were grown from aqueous solution by slow
evaporation technique. Single crystal X-ray diffraction analysis reveals that the crystal
belongs to orthorhombic system with the space group Pna21.The optical transmission study reveals the transparency of the crystal in the entire visible region and the cut off wavelength
has been found to be 230 nm. The optical band gap is found to be 3.40eV. The transmittance
of GZC crystal has been used to calculate the refractive index (n), the extinction coefficient
(K) and the real er and imaginary ei components of the dielectric constant. Mechanical studies were carried out on the as grown crystal. Dielectric constant and dielectric loss measurements were carried out at different temperatures and frequencies. Photoconductivity measurements carried out on the grown crystal reveal the negative photoconducting nature.