Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

Increasing the efficiency of dye-sensitized solar cells (DSSCs) by the fabrication of new photoelectrodes (PEs) is an important challenge. This study examined the photovoltaic parameters of DSSCs composed of a TiO₂ PE with WO₃ nanoparticles (NPs). A number of PEs with the same thickness but different concentrations of WO3 NPs in the TiO₂PE were prepared. The morphology and structural properties of the prepared PEs were examined by field-emission scanning electron microscopy and X-ray diffraction, respectively. The effects of the WO₃ NPs mixing concentration on the efficiency of DSSCs were investigated under simulated solar light irradiation.