SEM, PL, and UV Properties of Mixed Crystals of Ca-Ba tartrate in silica Gel

Calcium Barium tartrate single crystals were grown in silica gel at ambient temperature. Effect of various parameters like gel pH, and gel aging, gel density and concentration of reactants on the growth of these crystals were studies. Crystals having different morphologies and habits were obtained. Whitish semitransparent, pale yellow, rhombohedra shaped, needle shaped crystals of Calcium-Barium tartrate were obtained. Some of them were transparent diamond shaped, some are twined. The crystals grown were characterized by PL, SEM, and UV. XRD studies reveal that the crystal lattice of the Calcium Barium tartrate is orthorhombic and crystalline perfection of the crystals is extremely good. Photoluminescence spectrum shows Cyan, green, orange, and red emissions. SEM image showed plate like morphology and further plate like growth was observed on some plates.

Author(s): D. K. Sawant 1  , H. M. Patil 2, D. S. Bhavsar3, J. H. Patil4 andK. D.Girase5

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