TUNING THE STRUCTURAL, OPTICAL AND PHOTOVOLTAIC CHARACTERISTICS OF FABRICATED N-TIO\(_2\)/P-CUO AND N-TIO\(_2\)/P-CU\(_2\)O SOLAR CELLS BY CHANGING THE BACK CONTACT ELECTRODES

The current work focuses on working a comparison between two solar cells made with the combination, n-TiO2/p-CuO, and n-TiO2/p-Cu2O devices. structural, optical, photovoltaic characteristics were detailed. In optical section, measurements for TiO2 (120 nm), CuO (200 Cu2O nm) thin films illustrated, then energy of transition was calculated based Tauc formula each layer. direct gap energies TiO2, CuO, are 3.24, 1.77, 2.18 eV, respectively. front contact electrode in both systems is an ITO- coated glass layer, while back electrodes Pt, Ni, Au, Co, Ag, Cu, Al, Mo. effect various metals as fabricated devices investigated. structural showed superiority device n-TiO2/p-CuO over n-TiO2/p-Cu2O.