title: Study on structural, morphological, optical and thermal properties of guanidine carbonate doped nickel sulfate hexahydrate crystal.
abstract: The single crystal of guanidine carbonate doped nickel sulfate hexahydrate was grown from solution for ultraviolet filters. The single crystal XRD confirms that the grown single crystal belongs to the tetragonal system with the space group of P4₁2₁2. The crystallinity of the grown crystal was estimated by powder X-ray diffraction studies. The optical transmission and thermal stability of as-grown guanidine carbonate doped nickel sulfate single crystals have been studied. The optical transmission spectrum demonstrates the characteristics of ultraviolet filters. The TG/DTA studies confirm the thermal properties of grown crystals. Thermo-gravimetric analysis showed that the dehydration temperature of the guanidine carbonate doped nickel sulfate crystal is about 100 °C, which is much higher than that of pure nickel sulfate hexahydrate (NSH) crystals which is 72 °C. The growth behaviors and dislocation density were detected under the high resolution XRD and etching studies respectively.
authors.affiliation: Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India.
authors.forename: A
authors.initials: A
authors.lastname: Silambarasan
authors.affiliation: Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India. Electronic address: rajeshp@ssn.edu.in.
authors.forename: P
authors.initials: P
authors.lastname: Rajesh
authors.affiliation: Center for Crystal Growth, SSN College of Engineering, Kalavakkam 603 110, India.
authors.forename: P
authors.initials: P
authors.lastname: Ramasamy
mesh_terms: D002254:Carbonates / Q000737:chemistry*; D003460:Crystallization; D004055:Differential Thermal Analysis; D019791:Guanidine / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D002254:Carbonates; C029938:nickel sulfate; D009532:Nickel; D019791:Guanidine
keywords: Growth from solutions; High resolution X-ray diffraction; Inorganic compounds; Single crystal growth; Thermal analysis; UV filter