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Crystallization and Characterization of a New NonLinear Optical Crystal: L Proline Succinate (LPS)

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Author(s): P. Paramasivam | C. Ramachandra Raja

Journal: Journal of Crystallization Process and Technology
ISSN 2161-7678

Volume: 02;
Issue: 01;
Start page: 21;
Date: 2012;
Original page

Keywords: Slow Evaporation | Crystal Growth | X-Ray Diffraction | Fourier Transform Infrared Spectroscopy | Second Harmonic Generation | LPS Crystal

ABSTRACT
In this analysis, the single crystal of L-Proline Succinate (LPS) has been successfully synthesized and the purity of ma- terial has been increased by repeated recrystallization process. Single crystal was grown by adopting the method of growing in a slow evaporation solution using water as solvent at room temperature. The LPS single crystal has been synthesized by taking equimolar quantity of L-Proline and succinic acid, by mixing them thoroughly using deionized water. The prepared concentrated solution was placed in an undisturbed condition, and the solution was inspected regu- larly. The single crystal has been harvested over a period of 1 month. The same crystal was characterized by different techniques for finding its suitability for device fabrications. The grown crystal was characterized by Single crystal XRD, Powder XRD, FTIR, UV-vis-NIR, DTA/TGA and SHG analyses, respectively. The observed results from various char- acterization show the suitability for NLO application. The second harmonic generation of this grown crystal was checked using Kurtz Perry technique which showed positive results. The UV cut-off wavelength and the decomposition temperature of this grown crystal were found to be good when compared with the existing organic crystals.
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