Preparation method of high-transmittance anti-reflection membrane of solar cell
2016
The invention relates to a high-transmittance anti-reflection membrane of a solar cell. The thickness of the anti-reflection membrane is 70-90 nanometers, the pore size of the anti-reflection membrane is smaller than 200 nanometers, and the raw material of the anti-reflection membrane comprises a solvent and a polymer. In the anti-reflection membrane, uniformly coating is performed on the solar cell by a rotation gluing machine, and the anti-reflection membrane with relatively thin thickness and relatively small pore size is formed. By means of mobility performance of an organic polymer material, the agglomeration of the polymer material is achieved; meanwhile, the solvent liable to volatilize is separated during the high-speed rotation process, and pores are formed in the anti-reflection membrane; by adjusting the rotational speed, the time and a solvent formula, the adjustment of the sizes of nanometer pores is achieved, and finally, the reflectivity of the anti-reflection membrane is changed; and through a test, the short-circuit current of the cell is effectively increased, the luminous flux of sunlight on a cell surface is improved, and the conversion efficiency is improved.
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