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标题：Studies on Dielectric Behaviour and Second Harmonic Generation (SHG) Efficiency of Pure and Glycine Doped Bisthiourea Co Oxalate: A Novel Semiorganic Nonlinear Optical Material
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作者：Malhari N. Raste ; Satish K. Pardeshi
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：2
页码：1899
DOI：10.15680/IJIRSET.2015.0502134
出版社：S&S Publications
摘要：A novel class of semiorganic nonlinear optical materials viz. pure and glycine doped bisthiourea cobaltoxalate have been synthesized by solvent free mechanochemical method. Chemical composition was confirmed byCHNS and chemical analysis. Incorporation of glycine in pure compound was confirmed by FTIR and EDAX. FTIRstudies ascertained the coordination of metal ions to thiourea through sulphur atom. Thermal behaviour has beeninvestigated by TG and DTA. Transmittance spectra reveal that lower cut-off wavelength for pure and doped materialsare 300nm, 287nm respectively. SEM images shows compounds are porous and agglomerated. The dielectricmeasurements with varying frequencies at room temperature were studied which enhance the SHG efficiency. TheSHG measured by Kurtz-Perry powder technique was found to be higher for doped materials which defines NLOnature and their suitability for NLO applications
关键词：Bisthiourea Co oxalate; Glycine doped bisthiourea Co oxalate; Mechanochemical method; Dielectric;study; Second harmonic generation; Non linear optical nature