title: Unidirectional growth of 〈001〉 triglycine zinc chloride crystal by Sankaranarayanan-Ramasamy (SR) method and its characterization.
abstract: Bulk nonlinear optical single crystal of triglycine zinc chloride (TGZC) of size 15mm diameter and 50mm length was successfully grown from solution by unidirectional growth method of Sankaranarayanan-Ramasamy (SR). The growth conditions were optimized and a maximum growth rate of 1.5mm per day was realized. The crystal system and lattice parameters were confirmed by powder X-ray diffraction studies. The structural perfection of the SR method grown crystal has been analyzed by high resolution X-ray diffraction measurement. The UV-Vis-NIR studies show that the cutoff wavelength is around 240nm. The dielectric measurements were carried out to determine the dielectric behavior for the crystal. The observations are made in the frequency range 1kHz-2MHz at the temperature range of 43-150°C. The fluorescence spectra of grown TGZC single crystals exhibit emission peak at 485nm. The microhardness measurements were used to analyze the mechanical strength of the grown TGZC crystal. The SHG efficiency of TGZC was confirmed by Kurtz-Perry powder method.
authors.affiliation: SSN Research Centre, SSN College of Engineering, Kalavakkam 603 110, Tamil Nadu, India. Electronic address: aravinth.nmg@gmail.com.
authors.forename: K
authors.initials: K
authors.lastname: Aravinth
authors.affiliation: SSN Research Centre, SSN College of Engineering, Kalavakkam 603 110, Tamil Nadu, India.
authors.forename: M
authors.initials: M
authors.lastname: Senthil Pandian
authors.affiliation: SSN Research Centre, SSN College of Engineering, Kalavakkam 603 110, Tamil Nadu, India.
authors.forename: P
authors.initials: P
authors.lastname: Ramasamy
mesh_terms: D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D006244:Hardness; D009842:Oligopeptides / Q000737:chemistry*; D011208:Powders; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D019265:Spectroscopy, Near-Infrared; D013059:Spectrum Analysis, Raman; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D009842:Oligopeptides; D011208:Powders; C035647:glycyl-glycyl-glycine
keywords: Crystal growth; Crystal structure; Defects; Optical materials; X-ray diffraction