The effects of different precursor in sonicated immersion technique on hematite nanostructure properties

摘要

In this work, hematite nanostructures were synthesized through sonicated immersion technique to study the effects of using different precursor on the surface morphologies and the optical properties of the hematite nanostructures. The surface morphologies of the samples have shown different shape of nanostructures grown on the FTO substrates that were probably affecting their optical properties. The ferric nitrate sample has shown granular shape and porous nanostructure and it has a better absorbance in the lower range of wavelength (300-550 nm), meanwhile ferric chloride has been found to cultivate a nanorod-based structure and dominant in the transmittance properties at higher wavelength (550-1200 nm).