Photo-sensitive electrodes based on NiO: SnO2 Nano-composites prepared by chemical method

Abstract

In the beginning, NiO/SnO2 nanocomposite thin film was prepared of nickel nitrate (1.5213) gm that was weighed and dissolved in distilled water to obtain a specific molar concentration at room temperature and prepared as nanoparticles and mixed with half mount (0.5121) gm of SnO2, in addition to other steps to obtain on the nanocomposite to study some features it. The structural properties of nanocomposite thin films using the chemical technique studied, such as XRD, FE-SEM, and AFM, were found that NiO/SnO2 Nano-composite crystallizes are hexagonal structures with an average crystallite size of 16.30nm. also, the FE-SEM images study the morphology of the NiO: SnO2 thin films, it catches sight of the nanostructure thin films of the NiO: SnO2 Clearly, the surface roughness of nanocomposite according to AFM noted that gets better as a result of the radical’s mobility. The FT-IR spectrum of the synthesized composite has been studied. UV-Spectral absorption of NiO: SnO2 where peak range of wavelength (225-550) nm and notice an increase in the absorption range towards the red wavelength after adding nickel oxide, and use the prepared sample in applied as photosensitive electrodes, voltage characteristics of chemical synthesized: SnO2 nanoparticles shows the current vs voltage plot of chemical-synthesized NiO: SnO2 nanoparticles coated onto glass substrates using dip coating method where add SnO2 due to increasing the conductivity of the nanocomposite.