Investigation of optical, thermal and mechanical studies on semi organic nonlinear optical diaquabis(L-lactato)magnesium (DLLM) single crystal for optoelectronic devices applications

The Diaquabis(L-lactato)magnesium (DLLM) single crystals have been grown by slow evaporation solution growth technique. The lattice parameters and crystalline nature of the grown DLLM crystals have been studied by single and powder X-ray diffraction (XRD) analyses, respectively. The chemical composition and the corresponding functional groups of the grown DLLM have been confirmed by Fourier transform infrared (FTIR) and proton nuclear magnetic resonance (H1NMR) spectral studies. The optical transparency of DLLM in the visible region has been confirmed by ultraviolet-visible-near infrared (UV-Vis-NIR) spectrum and it has also been ensured with maximum wavelength emission from photoluminescence study. The bandgap of the DLLM material was calculated from optical absorption studies. The mechanical property of the material is studied and discussed in detail. The thermogravimetric differential thermal analysis (TG/DTA) ascertained the thermal stability of the material. The second harmonic generation (SHG) of DLLM crystal has been determined by the standard Kurtz and Perry powder method. The surface morphology of the grown DLLM crystal was observed by field emission scanning electron microscope (FESEM) analysis and the presence of the elements in the compound was confirmed with an energy-dispersive X-ray analysis (EDAX) study.