title: Growth and characterization of pure and doped KHP NLO single crystals.
abstract: Single crystals of Potassium Hydrogen Phthalate doped with amino acid l-lysine were grown successfully by slow evaporation method. The concentration of dopant in the mother solution was 0.5mol%, 1mol% and 2mol%. There is a drastic change in the morphology due to variation in doping rates which is also reflected in the X-ray diffraction data. The Fourier Transform infrared spectroscopy study confirms the incorporation of l-lysine into Potassium Hydrogen Phthalate crystal. The thermal study indicates the dissociating nature of the crystal. The nonlinear optical property of the grown crystal has been confirmed by Kurtz-powder second harmonic generation test. The dopant of 0.5mol% and 1mol% shows higher second harmonic generation result than pure Potassium Hydrogen Phthalate. Results are discussed.
authors.affiliation: R&D Department, Bharathiar University, Coimbatore, India. Electronic address: srthilagavathy@yahoo.com.
authors.forename: S R
authors.initials: SR
authors.lastname: Thilagavathy
authors.affiliation: Centre for Crystal Growth, SSN College of Engineering, Kalavakkam, India.
authors.forename: P
authors.initials: P
authors.lastname: Rajesh
authors.affiliation: Centre for Crystal Growth, SSN College of Engineering, Kalavakkam, India.
authors.forename: P
authors.initials: P
authors.lastname: Ramasamy
authors.affiliation: Vel Tech Ranga Sanku Arts College, Chennai 600 062, India.
authors.forename: K
authors.initials: K
authors.lastname: Ambujam
mesh_terms: D003460:Crystallization; D008239:Lysine / Q000737:chemistry*; D010795:Phthalic Acids / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D010795:Phthalic Acids; C032279:phthalic acid; D008239:Lysine
keywords: FTIR; SHG efficiency; TG/DTA; X-ray diffraction