Studies on growth and characterization of nonlinear optical L-tartaric acid–nicotinamide single crystal

Abstract

Organic nonlinear optical (NLO) single crystal of L-tartaric acid–nicotinamide (LTN) has been grown by slow evaporation solution technique at a constant temperature of 40[Formula: see text]C. The grown crystals were subjected to various characterization techniques in order to examine their suitability for various applications. Powder X-ray diffraction (PXRD) analysis revealed that the compound is formed without any impurities. Functional groups and formation of the title compound were confirmed using FTIR analysis. Optical behavior of the material was examined using UV–Vis NIR spectrum analysis and the lower cut-off wavelength and optical band gap energy were calculated. Microhardness, dielectric and piezoelectric studies have been carried out at ambient conditions. Electronic properties such as valence electron plasma energy, Penn gap, Fermi energy and electronic polarizability were calculated by Clausius–Mossotti relation. Photoluminescence analysis was carried out to study the luminescence nature of the crystal and its defect states. In addition photoconductivity, etching studies and powder Kurtz and Perry second harmonic generation (SHG) test were carried out.

Crystal growth and characterization of Benzimidazolium salicylate single crystal for nonlinear optical studies and antibacterial activity

“…4 shows the Williamson-Hall plot of BISA crystal and the strain value η is 7.612×10 -4 . The positive strain indicates tensile strain which is due to defects in crystal lattice [19]. The properties of the crystal is influenced by dislocation density and can be calculated using = The calculated dislocation density value is 5.9488×10 -14 (lines/m 2 ).…”

Studies on growth and characterization of nicotinium tartrate single crystal: An efficient organic nonlinear optical material

“…The NLO materials, capable of efficient frequency conversion of infrared laser radiation into visible or ultraviolet wavelengths are of substantial interest for various applications such as high optical data storage, color displays, medical diagnostics, optical telecommunication, scintillator and piezoelectric. [2][3][4][5][6][7][8] Some of the tartaric acid-based complexes reported in the recent past are L-prolinium tartrate, 9 hydroxyethylammonium-L-tartrate monohydrate and D-tartrate, 10 L-tartaric acid-nicotinamide 11 and p-nitroaniline-L-tartaric acid. 12 Since L-tartaric acid has higher solubility in water, it could be crystallized into bigger sizes and in another way it reduces the production costs in comparison with all other amino acid materials.…”