title: Effect of L-aspartic acid on the growth, structure and spectral studies of Zinc (tris) Thiourea Sulphate (ZTS) single crystals.
abstract: Single crystals of pure and L-aspartic acid doped Zinc (Tris) Thiourea Sulphate (ZTS) were grown from aqueous solution by solution growth method. The cell parameters and structure of the grown crystals were determined by X-ray diffraction studies. The presence of functional group in the compound has been confirmed by FTIR and FT-Raman analysis. The optical transparency range has been studied through UV-Vis spectroscopy. TGA/DTA studies show thermal stability of the grown crystals. Microhardness study reveals that the hardness number (Hv) increases with load for pure and doped ZTS crystals. Dielectric studies have been carried out and the results are discussed. The second harmonic generation was confirmed for l-aspartic acid doped ZTS which is greater than pure ZTS.
authors.affiliation: Research and Development Centre, Bharathiar University, Coimbatore, India; Department of Physics, SKP Engineering College, Tiruvannamalai 606 611, India.
authors.forename: Bincy Susan
authors.initials: BS
authors.lastname: Samuel
authors.affiliation: Research and Development Centre, Bharathiar University, Coimbatore, India; Department of Physics, SKP Engineering College, Tiruvannamalai 606 611, India. Electronic address: vcp_krish@rediffmail.com.
authors.forename: R
authors.initials: R
authors.lastname: Krishnamurthy
authors.affiliation: Govt. Arts and Science College, Viruthachalam, India.
authors.forename: R
authors.initials: R
authors.lastname: Rajasekaran
mesh_terms: D001224:Aspartic Acid / Q000737:chemistry*; D003460:Crystallization; D004055:Differential Thermal Analysis; D004553:Electric Conductivity; D006244:Hardness; D009942:Organometallic Compounds / Q000737:chemistry*; D011208:Powders; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013818:Thermogravimetry; D014732:Vibration; D014961:X-Ray Diffraction
chemical_list: D009942:Organometallic Compounds; D011208:Powders; C575203:zinc(tris)thiourea sulphate; D001224:Aspartic Acid
keywords: Amino acid doped ZTS; FT-Raman; FTIR; Nonlinear optical materials; Solution growth