Solar cell, method for manufacturing the same, and photovoltaic module

A photovoltaic module, comprising:

• a cell string including a plurality of solar cells connected with each other;
• a package adhesive film configured to cover a surface of the cell string;
• a cover plate configured to cover a surface of the package adhesive film facing away from the cell string;
• wherein each of the plurality of solar cells includes:
• an N-type substrate having a front surface and a rear surface opposite to each other;
• a passivation stack disposed on the front surface, wherein the passivation stack includes an oxygen-containing dielectric layer, a first passivation layer, and a second passivation layer that are sequentially disposed in a direction away from the front surface, the oxygen-containing dielectric layer includes a metal oxide material, the first passivation layer includes an oxygen-containing silicon nitride material, and the second passivation layer includes a silicon oxynitride material;
• and
• a tunneling oxide layer and a doped conductive layer that are sequentially disposed on the rear surface in a direction away from the rear surface;
• wherein a thickness of the oxygen-containing dielectric layer is in a range of 1 nm to 15 nm in a direction perpendicular to the front surface, a thickness of the first passivation layer is in a range of 30 nm to 60 nm in the direction perpendicular to the front surface, and a thickness of the second passivation layer is in a range of 20 nm to 40 nm in the direction perpendicular to the front surface.