Structural, optical and galvanomagnetical properties of low cost synthesised nanostructure Cu₂S films
by A.M. Mansour; E.M. El-Menyawy; G.M. Mahmoud
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 14, No. 3, 2019

Abstract: The cu₂s powder was prepared by low-cost hydrothermal method and was deposited as thin films by thermal evaporation. The structural properties are explored by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). The XRD shows a monoclinic polycrystalline nature of hydrothermally prepared powder, while the deposited film shows a hump corresponding to Cu₂S nanocrystallites. HRTEM micrograph shows nanoparticles with sizes ranging from 30 to 45 nm. Based on the thermogravimetric results, the thermal kinetic parameters are calculated by application of Broido method. The optical energy band gap of the evaporated films is determined as 2.3 eV. The electrical conductivity, charge carriers concentration, carriers mobility and the magnetoresistance (MR) of the films are investigated as a function of temperature.

Online publication date: Mon, 27-May-2019

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