Growth and property studies of a new nonlinear optical (NLO) metal-organic crystal, bis thiourea bismuth chloride (BTBC), is reported. BTBC crystals were grown from aqueous solution by a slow-cooling technique. It has been observed that the solution pH influences the growth rate along the [001] and [010] directions. The grown crystals have been characterized for their structural, thermal, mechanical, linear, and NLO properties. BTBC is found to be a uniaxial and optically positive crystal. The birefringence value of BTBC is found to be 0.103. BTBC crystallizes in a hexagonal system, and the complex formation is stabilized by a metal-sulfur bond. BTBC has good optical transmission in the entire visible region and hence is a potential material for nonlinear frequency conversion.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.