An investigation on optical, dielectric and thermal analysis of semiorganic bisglycine cobalt chloride dihydrate single crystal for electronic and opto-electronic devices

Abstract

Semiorganic single crystal of bisglycine cobalt chloride dihydrate (BGCCD) is a superior material for non-linear optics (NLO) applications such as photonic, electronic and opto-electronic devices. This article presents high-quality BGCCD single crystals prepared using the slow evaporation solution technique (SEST), which are a famous NLO material. A transparent BGCCD crystal with a maximum size of 9 × 9 × 8 mm³ was collected over the period of 80 days. Various analyses were conducted on the grown crystals, including single crystal x-ray diffraction, which was utilized to find out the unit cell parameters. Analyses of functional groups using Fourier transform infrared spectroscopy. Finding the band gap and absorbance of the grown crystal is done using UV-Visible spectroscopy. Mechanical stability is determined by micro-hardness. The dielectric loss and dielectric constant of the grown crystal is found by utilizing dielectric measurements. The stability is found through thermo-gravimetric and differential thermal analyses. To detect surface flaws in the grown crystals, etching analysis was employed. Structure morphology was identified using a scanning electron microscope. The elements were identified using energy dispersive x-ray analysis. The excitation and emission spectra can be determined using photoluminescence, and in order to determine the crystal’s thermal diffusivity, photoacoustic spectroscopy was employed. The findings regarding thermal diffusivity indicate that it is well-suited for uses related to opto-electronic devices.