Development Of Stereo Dye - Sensitized Titanium Dioxide Solar Cells

Solar cell is the most direct and general form in exploiting solar power. The study of silicon solar starts early and has the advantages of high convent ratio and refined technology. But it’s hard to be popularized because of the high production cost. With the evolvement of the solar cell research, many low-cost, low-pollution and simple-making solar cells emerged, including the dye-sensitized solar cell(DSSC). DSSC is characterized by high photoelectric conversion rate, low-cost, low-pollution, multicolor as well as transparent, and more public concern is focused on it.On the basis of the traditional working principle and process of DSSC, this thesis aims at improving the “sandwich” structure of cascading plate and forming it into tubulose or acicular solid structure. Different from traditional DSSC, the photo-anode of the solid dye-sensitized solar cell is to germinate TiO2 nanotube film and adsorb dye on the solenoid made by titanium wires through anodization, and the negative pole is made of platinic wire. The platinic wire would be inserted into the solenoid in photo-anode. And the external part is made of quartz glass tube and epoxy resin package, from which lead to the leading wires of two poles. In the process of preparation of the photo anode, this paper will confirm the proper percentage of the electrolyte, the isoperimetric of oxidation voltage and oxidation time through theoretical analysis and contrast experiments. So the consolidated nanotube film which has orderly morphology and structure would be made. Then the SEM would be used to analyze its morphology and structure. After the XRD test, a conclusion can be drawn that the best anatase crystal in the annealing temperature of 500℃. The last step to accomplish the photo-anode is to dispose TiCl4 and adsorb dye molecule. The fabrication of the solar cell follows. The final part is to test the performance of the cell, reach the conclusion and finish the experiment.Solid DSSC has the advantages of easier making, longer stand-by and larger light area ratio, which is superior to the tradition DSSC. In addition, the solid DSSC structure can be miniaturized and supply power to micro devices. And it has wide application prospect.