Growth and characterization of dye doped triglycine acetate single crystals for optoelectronic applications

Abstract

Semi organic materials are widely used in optical communication and optical image storage due to their high melting points, high degree of chemical inertness and high mechanical strength. In this research work, attention has been given to grow pure and dye doped triglycine acetate crystals because of its characteristic structure and opto electrical properties. Triglycine acetate (TGA) crystals exhibit good thermal and dielectric properties. It is used in the field of remote sensing, scintillation detectors and telecommunication. Pure triglycine acetate, anionic dyes like (acid red1, methyl orange, reactive orange16), cationic dyes (malachite green, crystal violet, safranin), mixed dyes like (methyl orange + acidred1) and (methyl orange + malachite green) doped TGA crystals were grown by slow evaporation technique. The starting materials used in synthesis were of high purity and repeated recrystallization has been performed to get defect free crystals. newlineThe grown crystals were subjected to characterization techniques in order to assess the properties of the crystal. The structural details of the material were studied by powder XRD. The compositions of the crystals were determined by using Fourier transform infrared spectroscopy. A UV-Vis analysis was used for the determination of the optical quality of the crystals. Thermal analysis is used to check the thermal stability of the crystal. The dielectric measurements were carried out to know the dielectric response of the crystal at varying frequencies. The NLO properties of the grown crystals. newline