Room temperature synthesis of nanocrystalline CuInSe₂ thin films by electrodeposition

Nanocrystalline copper indium diselenide (CuInSe₂) thin films were synthesized by one step electrodeposition technique at room temperature. The XRD pattern reveals the chalcopyrite structure of CuInSe₂. The SEM image shows the cauliflower nature of nanocrystalline CuInSe₂. with crystallite size of 50-100 nm. The EDS analysis confirms presence of copper, indium and selenium elements. UV- V is analysis shows optical band gap of 1.2 eV and FTIR study shows the peaks at 2348.87 cm^-1 and 2853.17 cm^-1 corresponding to polycrystalline CuInSe₂.