The Applications Of Zno In Dye Sensitized Solar Cell

With the continuous progress of human civilization, the demand for energy in all sectorsincreased significantly. The past, hundreds of millions of human beings depend too much on theaccumulation of fossil energy, with the increasing human consumption, has gradually dried up.Solar energy by more and more attention due to its non-polluting and inexhaustiblecharacteristics. There is a solar cells called dye sensitized solar cells (DSSC). Dye sensitizedsolar cell made by nano-thin film adsorbing the dye as a sensitizer is a solar cells. Since theGratzel research team completed the high conversion efficiency, low cost, simple fabricationprocess of the dye sensitized nanocrystalline TiO2 solar cells since it has become a hot researchfield of solar cells. ZnO and TiO2 with the same band gap and the electronic transmission loop,which meant it in terms of DSSC is a potential alternative to the application of TiO2semiconductor materials. One-dimensional ZnO nanorod structures can reduce trap and providesthe most direct path for the rapid transmission of electronic to reduce the dark current caused bysurface states, which help to improve photoelectric conversion efficiency. In this paper westudied adjusting the morphology of ZnO nano-arrays by used chemical methods, also studied inthe initial application in DSSC.The main work is as follows:1.Morphology of ZnO nanorod arrays is synthesized.For its attempt to morphologyconditions for the experiment, I have been good shape ZnO nanorod arrays.2.The morphology of ZnO were the primary adjustment, have selected the following factors:the impact of the seed layer, time, temperature and growth solution concentration.3.The good morphology of the samples used in dye-sensitized solar cell, by selecting adifferent dye soaking time to obtain optimal efficiency.4.On the morphology of further adjustments. By selecting different seed layers on themorphology of ZnO arrays deeper adjusted to obtain a more even better shape orientation.