Study of All Metal Based Dye-sensitized Solar Cells

In this report, we fabricated flexible dye sensitized solar cells (DSSCs) of large area without TCO films and studied its photoelectric characteristics. The investigations include preparation of nanocrystalline particles of TiO2, fabrication of porous TiO2 films, photoelectrochemical characteristics of porous TiO2 films, fabrication of flexible electron transport layers, performances of DSSCs without TCO films, size effect of solar-cell with large area and photovoltaic measurements of solar-cell with large area. Experimentally, the nanocrystalline TiO2 films were deposited on stainless steel mesh of 300 meshes by electrophoretic deposition (EPD) which consists of repetitive short-term depositions with intermediate drying for DSSCs. The TiO2 nanoparticles was dissolved in ethanol or isopropanol for suspension solution. The efficiency and life-time of different size of DSSCs were discussed.