Influence of metal dopants (Cu and Mg) on the thermal, mechanical and optical properties of l-alanine acetate single crystals

Abstract

Single crystals of pure, Cu 2+and Mg 2+ doped L-alanine acetate (LA lA) were grown successfully by slow evaporation technique. In the present study, to improve the device characteristics of LA lA crystals, metal dopants of Cu 2+ and Mg 2+ were incorporated into the pure crystals. The grown pure and doped LA lA crystals were confirmed by X-ray powder diffraction studies. The pure and doped crystals were characterized by Fourier Transform Infrared (FT-IR) and Thermal studies. Absorptions of the grown crystals were analyzed using UV-Vis-NIR studies which revealed that these crystals possess minimum absorption from 250 to 1800 nm. Further, it was found that the optical properties were enhanced by the incorporation of the dopants. Hardness, dielectric and photoconductivity studies were also carried out for the pure and doped LA lA crystals. Nonlinear optical studies of pure and doped crystals were carried out and it revealed that the dopant (Cu 2+ and Mg 2+) has increased the efficiency of the pure LA lA crystal.