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Characterization of Pure and Urea-doped γ-Glycine Single Crystals Grown by Solution Method by P. Selvarajan; J. Glorium Arul Raj; S. Perumal is a Engineering article available to read on EtoBox.

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Pure and urea-doped gamma-glycine (g-glycine) single crystals were grown by solution method with slow evaporation technique. When urea was added as dopant, morphological alterations were noticed in g-glycine crystals. Structural characterization of the grown crystals was carried out by single and powder X-ray diffraction (XRD) methods and it is observed that the samples crystallize in noncentrosymmetric space groups. UV-visible transmittance studies were performed to analyse optical transparency of pure and urea-doped g-glycine crystals and found that the crystals were transparent in the entire visible-NIR region. Density and melting point of the grown crystals were measured. Second harmonic generation (SHG) for the grown crystals of this work was confirmed using Nd:YAG laser. Thermogravimetric and differential thermal analyses (TG/DTA) thermograms reveal that the materials have good thermal stability. From Microhardness studies, it is observed that urea-doped g-glycine crystal is harder than pure (undoped) sample.

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Author

P. Selvarajan; J. Glorium Arul Raj; S. Perumal

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-0248)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)