Structural, spectral, optical and dielectric properties of copper and glycine doped LAHCl single crystals

Cu2+ and glycine doped L-arginine monohydrochloride monohydrate (LAHCl) single crystals were grown by slow solvent evaporation technique. The grown single crystals were confirmed by X-ray diffraction study and the interaction of dopants with LAHCl molecule was identified in Fourier transform infrared spectra. The crystalline perfection of pure and doped crystals was analyzed by high resolution X-ray diffraction studies. Vickers microhardness and UV–visible spectroscopy were carried out respectively to study the mechanical stability and optical transmittance of pure and doped LAHCl single crystals. He–Ne laser of wavelength 632.8 nm was used to measure refractive index and birefringence of grown crystals. The second harmonic generation efficiency was also measured for pure and doped LAHCl single crystals using Nd:YAG laser.

Position of (a) Cu2+ and (b) glycine in LAHCl crystal lattice.Figure optionsDownload as PowerPoint slideHighlights
► The effect of Cu and glycine on the growth of LAHCl single crystal was studied.
► The interaction of dopants with LAHCl molecule was studied using Fourier transform infrared spectra.
► Mechanical stability, transmittance and SHG efficiency of Cu-LAHCl is better than pure LAHCl.
► Refractive index of doped crystals is greater than that of pure LAHCl.