Study of growth condition and characterization of Monothiourea-Cadmium Sulphate Dihydrate single crystals in silica gel

Synthesis, growth and characterization of semiorganic nonlinear optical single crystal bis(thiourea) barium nitrate (BTBN) for frequency conversion

“…Therefore, there is a challenge faced by materials scientists to discover new variety of NLO materials. In the recent past, many researchers have shown extreme interest in semiorganic crystals because * E-mail: smravi78@rediffmail.com of the combination of hyperpolarizability, low angular sensitivity, excellent mechanical properties and the ease to alter their molecular structure in order to maximize their nonlinear properties [5,6]. Generally, semiorganic NLO materials have better physical and chemical properties than their constituent elements and they are highly suitable to growing crystals with required dimensions [7,8].…”

“…Thiourea molecule is attracting not only due to the structural chemistry but also the attainability of formation of semiorganic coordination complexes which results in enhanced NLO activity [14,15]. Thiourea based semiorganic optical crystals like potassium thiourea chloride (PTC) [16], calcium bis(thiourea) chloride (CBTC) [17], pure and magnesium doped ZTS [18], bis thiourea ammonium nitrate (BTAN) [19], cadmium thiourea acetate (CTA) [5], mono-thiourea cadmium sulfate dehydrate (MTCSD) [6] are good examples of engineering the materials with high nonlinearity out of an organic ligand with vanishing microscopic dipole moment (thiourea) by metal complexation, which exhibit very high NLO properties. Hence, our attention has been focused towards the development of semiorganic materials with thiourea ligand because of their interesting architecture and wide variety of applications.…”