The influences of sintering temperature on structural, morphological, optical properties, and magnetoresistance of tin oxide (SnO₂) nanomaterials

During the last few years, nanomaterials have sparked a lot of attention due to their properties. Therefore the fundamental goal of this paper, we analyze the impact of sintering temperature (450–750) °C on structural, optical properties, and magnetoresistance of tin oxide nanomaterial via the co-precipitation method. X-ray diffraction and RAMAN reveal a tetragonal crystal structure without the presence of any impurities. Further, we found the growth of crystallinity with higher sintering temperatures of pellets. The morphology studies reveal the inhomogeneity of particles and they are closely packed together. UV–Vis spectroscopy results show that tuning the bandgap suggested the improvement of optical properties in tin oxide in the role of optoelectronic devices, sensors, etc. We found a reduction in resistivity ( ρ ) and an increment in magnetoresistance as the sintering temperature of pellets rises.