Structural, optical, and magnetic properties of Yttrium aluminium BORATE (YAB) nanomaterial, prepared by low cost sol-gel chemical method

In this paper, we present synthesis, structural optical, and magnetic analysis, of the Yttrium Aluminium Borate (YAB) nanomaterials. YAB materials were synthesized by the Sol-gel method. The structural analysis, carried out by using X-ray diffraction (XRD) and shows that the crystal structure of YAB is of nanometric size ranging between 16 nm and 26 nm at annealing temperature above 800 degrees C. Photoluminescence property shows that YAB gives intense blue light emission in the visible region. Further energy band gap were investigated using Tauc plot which was found to be decreased from 1.782 eV to 1.748 eV respectively with increasing annealing temperature from 800 degrees C to 900 degrees C, keeping annealing time constant for 2 hrs. Energy band gap is a function of crystallite size and it is very close to energy band gap of GaAs nanomaterial used in the Light Emitting Diode (LED) application, having band energy gap 1.441 eV. Vibrating Sample Magnetometer (VSM) measurement shows the diamagnetic nature of the prepared sample. Coercivity increases while Magnetization and retentivity decrease for YAB nanomaterial for the temperature above 800 degrees C Celsius. The prepared YAB nanomaterials may be a potential candidate for LED and other related applications. (C) 2021 Elsevier Ltd. All rights reserved.