CdS/CdSe-cosensitized TiO₂photoanode for quantum-dot-sensitized solar cells by a microwave-assisted chemical bath deposition method

A CdS/CdSe quantum-dot (QD)-cosensitized TiO₂ film has been fabricated using a microwave-assisted chemical bath deposition technique and used as a photoanode for QD-sensitized solar cells. The technique allows a direct and rapid deposition of QDs and forms a good contact between QDs and TiO₂ films. The photovoltaic performance of the as-prepared cell is investigated. The results show that the performance of the CdS/CdSe-cosensitized cell achieves a short-circuit current density of 16.1 mA cm^-2 and a power conversion efficiency of 3.06% at one sun (AM 1.5 G, 100 mW cm ^-2), which is comparable to the one fabricated using conventional successive ionic layer adsorption and reaction technique.