Redrothu, Hanumantharao and Kalainathan, S. and Bhagavannarayana, G. (2013) Growth, HR-XRD, optical, thermal, luminescence and nonlinear optical studies of novel Organic nonlinear optical crystal: L-Threonine formate. Optik , 124. pp. 3718-3722. ISSN 0030-4026

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Abstract

The NLO single crystals of L-threonine formate (LTF) were grown by slow evaporation method in the molar ratio 1:1. The grown crystal was characterized by single crystal XRD, Powder XRD, HR-XRD, mass, thermal and UV-vis-NIR spectral analysis. Single crystal XRD analysis revealed that the crystal system belongs to tetragonal with cell parameters a = 7.86 angstrom, b = 7.86 angstrom and c = 11.07 angstrom. The sharp and well defined Bragg peaks observed in the powder XRD pattern confirm the crystalline nature of LTF compound. The structural perfection of the grown crystals has been analyzed by high-resolution X-ray diffraction (HR-XRD) analysis. Mass spectroscopic analysis determined the compound molecular weight from the full scan mass spectra. The optical properties of the grown crystal were calculated from UV transmission spectral analysis. Thermo gravimetric and differential thermal analysis reveals the thermal stability of the grown crystal. Second harmonic generation (SHG) of powdered LTF sample was tested using Nd:YAG laser and is found to be 1.21 times that of potassium dihydrogen orthophosphate. The fluorescence spectral study was carried out in the range of 280-500 nm and the optical band gap is estimated to be 3.042 eV

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Optics
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	17 Nov 2021 05:37
Last Modified:	17 Nov 2021 05:37
URI:	http://npl.csircentral.net/id/eprint/3205

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