Synthesis and Characterization of a NLO crystal - bis (thiourea) zinc
sulphate doped with L-malic acid

B. Sivasankaria; P. Selvarajan

B. Sivasankaria Department of physics, The Standard Fireworks Rajaratinam College for women, Sivakasi- 626 123, India;
P. Selvarajan Department of Physics, Aditanar Collegeof Arts and Science, Tiruchendur- 628216, India.

Keywords: A1: SHG; B1: force constant; C1:Hardness; D1: NLO.

Abstract

The nonlinear optical (NLO) material L-malic acid bis(thiourea) zinc sulphate (LMBTZS) was grown by slow evaporation method. The effect of L-malic acid doping on the morphology of the LMBTZS single crystal has been studied. The unit cell parameters were determined by single crystal XRD. The functional groups and force constant of LMBTZS was identified by FTIR analysis. The photoluminescence spectrum of LMBTZS shows the strong emission in ultraviolet region. The thermal behaviours were identified by TG/DTA analyses. Dielectric studies of the grown crystal was carried out. The SHG efficiency was confirmed by powder technique of Kurtz and Perry. LMBTZS is found to be an excellent NLO and piezo-electric material.

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Synthesis and Characterization of a NLO crystal - bis (thiourea) zinc sulphate doped with L-malic acid

Abstract

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