IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Opto-Electronic Characterization of TiO2/Metal/TiO2 Multilayers
Autor/es:
M.MEYER; M.G.VALLUZZI; L.C. DAMONTE; L.G.VALLUZZI
Reunión:
Simposio; ISMANAM 2017; 2017
Resumen:
Transparent conductive oxides (TCOs) play an important role in many optoelectronic devices such as solar cells, organic light emitting diodes, touch panel and efficiency energy applications, heat mirrors and thermoelectric materials [1]. In recent years, many researchers proposed a TCO/metal/TCO multilayer structure with advanced electrical properties, mechanical flexibility, chemical stability and high optical transparency than a TCO single layer [2]. Multilayer films of TiO2/Cu/TiO2 and TiO2/Co/TiO2 were grown on glass substrate by DC magnetron sputtering technique at low temperature deposition for low cost applications. Copper interlayer was chosen as a possible replacement of Ag due to their comparable electrical conductivity and relativity low cost. Cobalt interlayer is studied for ferromagnetic properties at room temperatures because of its potential applications in spintronics. The deposition time was chosen to obtain estimated thickness for 〖TiO〗_2 layers of 30 nm while metal interlayers of 12, 15 and 18 nm thick were grown. The optical, electrical, structural and morphological properties of these films were characterized by UV-visible spectroscopy, four probe technique, X-rays diffraction patterns and atomic force microscopy (AFM) respectively (Figure 1). Figures of merit (FOM) are determinate for transparent solar cells electrode and others applications.