Effect of Concentration of CuSe Thin Film as Photo Anode on its Morphology and Photovoltaic Response

Kavita Gour, Preeti Pathak

Abstract: Abstract: The development of thin film solar cell is an active area of research at this time. Nanocrystalline thin films of copper selenide have been grown on glass and indium tin oxide (ITO) substrates using chemical method. At different temperature, different deposition time and different concentration of solution golden films have been synthesized and annealed at 200?C for 2H and were examined by means of X-ray diffraction (XRD) and (AFM) micrographs for their structural and morphological properties. Average spherical grains of the order of 25.49 nm for half concentration 29.3nm for normal concentration and 34.06nm for double concentration in size aggregated over about 120 ? 10 nm for normal concentration islands were seen by AFM images. Conductivity in copper selenide thin films make it a suitable candidate for solar cells. Their photoelectrochemical performance was investigated in standard two electrode configuration with redox electrolyte. The investigation may be useful in obtaining efficient, stable and low cost solar cell to compete with the existing technology.

Keywords: Keywords: Copper selenide thin films; Photoelectrochemical cells; XRD; Surface morphology.