Efficiency Study of Flexible Dye Sensitized Solar Cells Operated with Graphite, Gold and PlatinumCounter Electrodes

Flexible Dye-Sensitized Solar Cells (DSSCs) are new generation of photovoltaic solar cells that imitate the naturalphotosynthesis process. DSSCs have been extensively studied in recent years because they provide high-efficient energy conversion, low cost production and environmentally friendly advantages. These cells work by absorbing photons on an inexpensive thin-film composed of dye molecules attached to a titanium oxide layer on a plastic substrate. This research is focused on fabrication technology of flexible dye sensitized solar cell on plastic substrate. The solar energy conversion efficiencies () forfabricated cells (25×25 millimeter) operated with graphite, gold and platinum counter electrode were about 0.363%, 0.551% and 0.816% respectively under 1000 W/m2 illumination.