Comparative Studies of the Optical Absorbance and Structural Properties of Ironcopper Sulphide(CuS-Fe) and Iron Lead Sulphide(PbS-Fe) Thin Films Deposited by Silar Method

Abstract

The influence of iron on lead sulphide(PbS)  and Copper Sulphide (CuS) thin films deposited on glass substrates via successive ionic layer adsorption (SILAR) Technique using lead acetate, Pb(CH ₃ COO) ₂, Cupric Acetate Cu(CH ₃ COO) ₂, thioacetamide ( S ₂ H ₅ NS), Iron (II) Chloride dehydrate(Fe Cl ₂. 2H ₂ O), ethanol and ammonia by  in alkaline medium annealed between  283K and 500K was investigated.   The structural and morphological studies were performed by X-ray diffraction (XRD) Analysis and  scanning electron microscopy(SEM) respectively. The Uv-visible studies were done using spectrometer in the Technical University, Ibadan.   The XRD showed  films of cubic  crystalline   PbS thin films, cubic and face-centred crystalline  PbSFe thin films, cubic CuS thin film, hexagonal Cu ₂ S thin films and cubic and hexagonal crystalline natured CuSFe thin films with the preferential (111),(002)(004) (311) orientations.

Keywords:  Copper Sulphide thin Films: Lead Sulphide thin Films: Absorbance: structural properties

DOI: 10.7176/APTA/82-04

Publication date: January 31^st 2020