2results about How to "Guaranteed passivation effect" patented technology

This disclosure relates to the field of solar cell manufacturing technology, and discloses a method for fabricating a solar cell and the solar cell itself. The fabrication method includes: providing a substrate layer with a first textured surface; forming an anti-reflection passivation layer on the surface of the substrate layer, the anti-reflection passivation layer conformally covering the first textured surface; laser-treating the anti-reflection passivation layer to form a second textured surface, the second textured surface including multiple micro-recesses; and forming a repair passivation layer on the laser-treated surface of the anti-reflection passivation layer to repair laser damage introduced by the laser treatment, the repair passivation layer conformally covering the second textured surface. This disclosure can ensure the passivation effect of the cell while improving the light-trapping effect of the cell surface.

The present disclosure relates to the technical field of solar cell, and particularly relates to a rounded reagent and a photovoltaic cell and a preparation method thereof. A textured pyramid structure is arranged on a poly removal area of the photovoltaic cell, and the top angle of the top of the pyramid and the bottom angle of the bottom of the pyramid are both rounded. The photovoltaic cell has excellent passivation performance and a double-sided rate simultaneously.