Smart Materials and Concepts for Photovoltaics: Dye Sensitized Solar Cells

Recently the issue of clean energy generation for powering an ever growing and developing civilization has come to the fore in international communities. A range of strategic actions have been identified in order to reach the renewable energy goals of 2020. The photovoltaic will play an important role with annual growth rate of the order of 30%. Particular emphasis has been given to organic solar cells and in particular to dye solar cells (DSC). These have the potential to greatly reduce materials and fabriccation costs. In this chapter we will be giving a brief survey of dye solar cell science and technology: both the material aspects, highlighting the contribution to the photovoltaic process played by the electrolyte and counter electrode materials, and the engineering issues involved in creating a module of interconnected cells, using different architectures, on a common substrate. It is the possibility of using solution processed techniques with many of the active materials of the cell that contributes to make organic semiconductor and hybrid DSC technology so promising.

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