Effect of rare earth rubidium chloride on the optical, mechanical and antifungal behaviours of L-lysine monohydrochloride crystal for photonics and medical application

Abstract

L-Lysine monohydrochloride and rubidium chloride doped L-Lysine monohydrochloride crystals with high optical, mechanical and antifungal were grown by slow evaporation techniques. The Single crystal XRD ascertained the monoclinic structure and the crystals were grown with lesser grain boundaries. Functional groups and existence of Rb was confirmed by FTIR and EDX. Grown crystals exhibit good transmittance than pure in UV–Visible region and the band gap of pure and doped crystals are 5.30 eV and 5.94 eV. Mechanical property of doped crystal was significantly improved due to RbCl doping and it lead the crystal for device fabrication. Nonlinear optical property of the grown crystals were surpassing than KDP and confirmed by Kurtz Perry technique. The Rb added crystal pronounced excessive inhibitory action towards pathogenic fungus like Candida albicans, Candida parapsilosis and Aspergillus Flaves than pure L-LMHCL crystal.

Keywords

• Slow evaporation
• Monoclinic
• Optical material
• Mechanical property