Studies on the growth and characterization of L-Asparagine Monohydrate Admixtured with Dl- Malic Acid Single Crystals

Single crystal of L-Asparagine monohydrate admixtured with DL- malic acid (LAMDLM) has been grown by slow evaporation solution growth technique by using deionized water as solvent at room temperature. Optically clear single crystals having dimensions up to 4mm x 3mm x 1mm. Powder X-ray diffraction analysis reveals that LAMDLM crystal crystallizes by Orthorhombic system with the space group of P212121. The physical phase of the product was confirmed by powder x-ray diffraction analysis. The Fourier Transform Infrared (FTIR) spectra of all grown crystals have been recorded in the wavenumber range of 500-4500 cm-1 by KBr pellet technique and the associated functional groups of the grown crystals. The optical parameters, such as optical band gap energy, transparency (%) and absorbance were calculated parameters using UV-Vis Transmittance data in the spectral range of wavelength 190-1100 nm. The Multilayer plate-like pattern of growth was observed by Scanning electron microscopy. The presence of L-Asparagine malate was confirmed by EDAX analysis. Incorporation of Various elements present in L-Asparagine malate in the crystal was confirmed by Energy Dispersive X-ray Analysis (EDX). The laser damage threshold for the grown crystal was measured using Nd:YAG Laser. The laser damage threshold value was found to be 3.6 GW/cm2.