Researchers from Hamedan University of Technology, Iran, and North Carolina State in the US produced dye-sensitized solar cells through a simple and cost-effective method, Iran Nanotechnology Initiative Council (INIC) reported.
Dye sensitized solar cells (DSSCs) are the most promising type of solar cells. Low production cost, flexibility, appropriate efficiency and ability to change the production scale are among the most important advantages of these types of solar cells to be used at large scale. However, researchers have always worked on increasing the efficiency of the solar cells.
According to INIC, the aim of this research was to use metal oxide/polymeric nanostructured films to produce dye sensitized solar cells with the ability to pass light from the both sides and appropriate electrical efficiency. Simplicity is the most important advantage of the proposed method in a way that a large number of solar cells can be produced with larger areas with a reasonable price.
Titanium oxide nanostructured films were firstly produced through floating deposition method. Then, the thin film of aniline was produced with a structure of nanofiber through the polymerization of aniline.
Results showed that application of polyaniline nanofiber instead of the network structure of polyaniline can increase the cell's efficiency. In addition, the light passed through the cell can be returned by using a mirror due to the transparency of the films, and the cell's efficiency increases.
Results of the research have been published in Solar Energy Materials and Solar Cells, vol. 143, 2015, pp. 284-295.
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