Abstract

Zinc tris thiourea sulfate (ZTS) is one of the promising semiorganic crystals useful for nonlinear applications. The effect of hippuric acid doping on the growth aspects, structural and optical properties of ZTS crystal was investigated. Slow evaporation technique was employed to grow pure and 1mol% hippuric acid doped ZTS (HAZTS) single crystals. Powder XRD analysis reveals the crystalline nature of the grown crystals. Both the crystals exhibit orthorhombic crystal structure. The lattice parameters of the grown crystals are: a=11.0466Å, b=7.6949Å and c=15.6393Å (for pure ZTS); a=11.1302Å, b=7.7081Å and c=15.5033Å (for HAZTS). The UV–vis–NIR spectral analysis was carried out to study the effect of doping on the optical characteristics of the grown crystals. The crystal is transparent over the entire visible region. The bonding structure and molecular associations were analyzed by FTIR spectroscopy. Powder SHG test reveals the non-linear optical efficiency of the grown crystals.

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