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Synthesis, growth and characterization of nonlinear optical single crystal: glycine ammonium chloride



  1. Department of Physics, Sree Sastha College of Engineering, Chembarambakkam, Chennai, 600 123, India
  2. Department of Physics, GKM College of Engineering and Technology, Chennai-600 063, India
  3. Department of Physics, AMET University, Kanathur, Chennai-603 112, India


Nonlinear optical single crystals of Glycine Ammonium Chloride (GAC) have been grown by slow evaporation method. The lattice parameters and crystal system of the grown crystals were confirmed by single crystal X-ray diffraction analysis. Fourier transform infrared (FTIR) analysis confirms the various functional groups present in the grown crystal. The thermal behavior of the grown crystal was investigated by DTA and TGA analysis. The optical properties of the crystals were determined using UV-Visible spectrum. Optical constants such as band gap, refractive index, reflectance, extinction coefficient and electric susceptibility were determined from UV-Visible spectrum. The mechanical properties of the grown crystals were studied using Vickers microhardness tester. The second harmonic generation (SHG) test has been confirmed by the Kurtz powder test. The dielectric constant and dielectric loss of the crystal are studied as a function of frequency for different temperatures. The photoconductivity studies confirm that the grown crystal has negative photoconductivity nature. In order to investigate the growth mechanism and surface features, etching studies are carried out for the crystal..


Single X-ray diffraction, UV-Vis-NIR spectrophotometer, NLO, SHG, Dielectric constant and Dielectric loss.

Submitted at: March 15, 2015
Accepted at: Feb. 10, 2016


N. NITHYA, R. MAHALAKSHMI, S. SAGADEVAN, Synthesis, growth and characterization of nonlinear optical single crystal: glycine ammonium chloride, Journal of Optoelectronics and Advanced Materials Vol. 18, Iss. 1-2, pp. 101-106 (2016)