Applications of graphene and dye-sensitized solar cells and their prospects

With the continuous development of solar cells, various types of solar cells keep appearing, among which dye-sensitized solar cells, which are highly expected, are in line with completely green and pollution-free solar cells. This type of solar cell is in line with sustainable development and represents environmental friendliness. Graphene, as the hottest new material today, is widely used in batteries for its superior electrochemical properties and unique structure. This paper discusses the working principle of dye-sensitized solar cells as well as their advantages and disadvantages, describes the current development of dye-sensitized solar cells, and introduces the application of graphene and graphene composites in dye-sensitized solar cells, describes the improvement of the performance of graphene and its composites on dye-sensitized solar cells, and finally describes a method of preparing graphene composites. The future improvement directions and research trends of graphene composites for dye-sensitized solar cells are discussed.