Introduction to Different Sensitizers of Nanostructured Solar Cells

In nanostructured solar cells, sensitizers are responsible for light absorption. A quarter century after the birth of this kind of solar cells, different types of sensitizers, containing dyes, quantum dots and perovskites have been introduced and used in solar cells. One of the most important features of a sensitizer is its band gap, optical properties and ability of light absorption. In each kinds of sensitizers, molecular structure determinds optical properties. In this paper the relation between structure and optical properties of different sensitizers were discussed.