Review on Tandem Dye-Sensitized Solar Cells

Dye-sensitized solar cells have attracted a great attention due to low cost and preparation facility. A novel advance in this technology is simultaneous use of two or further dyes of a solar cells namely tandem solar cells. A Tandem solar cell is a unique of solar cells form consisting of two sub-cells, which together convert sunlight into electricity energy and therefore tandem solar cells have higher power conversion efficiency than single solar cells. The purpose of this article is providing the latest progress in tandem solar cell technology with a focus on materials, ingredient and their interconnection. Finally, some brief outlook and performance of tandem solar cells are presented.