Synthesis, growth, structural, thermal, electrical and optical properties of organic NLO: N' methyl urea oxalic acid

An organic mono methyl urea oxalic acid was synthesized and a single crystal was grown by a slow evaporation method using methanol as a solvent. Single crystal and high-resolution X-ray diffraction analyses examined the unit cell parameters and perfection of the grown crystals. The UV cut-off wavelength of the grown crystal and its optical behavior was studied using UV-Vis-NIR spectroscopic analysis. The functional groups of the NMUO crystal were confirmed through the FTIR technique. The elastic constant, yield strength (sigma y), and growth pattern of the NMUO compound have been studied using an Econment microhardness tester and high-resolution microscope respectively. Thermo gravimetric analysis (TGA) and differential scanning calorimetry (DSC) characterized the grown crystals' thermal stability and specific heat capacity. The dielectric behavior of the NMUO single crystal was analyzed for various crystallographic axes. The Laser-induced damage and birefringence of NMUO were experimentally calculated using Nd: YAG laser and halogen lamp as sources respectively. The Photoconductivity of the grown crystal was investigated. The third-order non-linear optical co-efficient of NMUO single crystal was studied using Z-scan Technique.