Various roles of dye molecules in organic ternary blend solar cells

Abstract

Ternary blend organic solar cells have made great progress, and attracted more and more attention because of their flexibility and simple fabrication process. The incorporation of dye molecules can effectively compensate for the disadvantages of organic solar cells, such as photon harvesting, exciton dissociation and charge transfer. Therefore, ternary blend organic solar cells with dye molecule as the third component are promising candidates to improve the photovoltaic performances. This review briefly summarizes the developments of ternary blend organic solar cells, and discusses the effect of dye molecules on the basic photo-physics process of the ternary blends. Finally, the challenges and perspectives for ternary blend solar cells are discussed.