Structural, optical, electrical and magnetic properties of Cu and Ni doped SnO2 nanoparticles prepared via Co-precipitation approach

Abstract

The pure SnO2, Cu and Ni-doped SnO2 nanoparticles (NPs) have synthesized by simple Co-precipitation method. PXRD confirms that the synthesized materials were in the tetragonal rutile-type structure and the crystallite size of the Pure SnO2, Cu and Ni-doped SnO2 NPs were around 10–13 nm. From UV–Vis analysis, bandgap energy is found to be 2.84, 2.50 & 2.30 eV respectively for pure SnO2, Cu and Ni-doped SnO2 NPs. Chemical bonding's and the location of the O–Sn–O band confirmed at 632 cm−1 through FTIR-spectrum. PL emission of pure SnO2 shows a notable peak at 524 nm, the broad peak at 536 nm in the green region thus may due to several intrinsic defects. In magnetic properties, the higher value of saturation magnetization is found to be 0.07636 emu/g respectively for Ni-doped SnO2 NPs. In electrical studies, Ni-doped SnO2 NPs having good conductivity compare to the other synthesized samples.