title: Growth and spectral characterization of ethylene diamine tetra acetic acid (EDTA) doped zinc sulphate hepta hydrate - a semi organic NLO material.
abstract: Semi-organic non-linear optical single crystals of ethylene diamine tetra acetic acid (EDTA) doped zinc sulphate hepta hydrate crystals were grown by slow evaporation solution growth technique, at room temperature, using de-ionized water as solvent. The modes of vibrations of different molecular groups present in the grown crystal were identified by FT-IR technique. The optical absorbance/transmittance was recorded in the wavelength range of 190-1100 nm. Thermal properties of the grown crystal were studied by thermo gravimetric analysis and differential thermal analysis. The melting point of the grown crystal was estimated by differential scanning calorimetric analysis. The inclusion of the dopant (EDTA) was confirmed by colorimetric estimation method. The second harmonic generation efficiency is about 30% of potassium dihydrogen orthophosphate.
authors.affiliation: Department of Physics, Government Arts College (Autonomous), Kumbakonam 612 001, Tamil Nadu, India. crraja_phy@yahoo.com
authors.forename: C
authors.initials: C
authors.lastname: Ramachandra Raja
authors.forename: K
authors.initials: K
authors.lastname: Ramamurthi
authors.forename: R
authors.initials: R
authors.lastname: Manimekalai
mesh_terms: D003460:Crystallization; D004055:Differential Thermal Analysis; D004492:Edetic Acid / Q000737:chemistry*; D013053:Spectrophotometry; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D044366:Transition Temperature; D014867:Water / Q000737:chemistry; D019287:Zinc Sulfate / Q000737:chemistry*
chemical_list: D014867:Water; D019287:Zinc Sulfate; D004492:Edetic Acid