A method for manufacturing a solar cell includes forming a first dielectric layer on a second surface opposite a first surface of a substrate; forming second dielectric layers respectively on an emitter region and the first dielectric layer; forming a third dielectric layer on the second dielectric layer that is positioned on the emitter region; forming a hydrogenated silicon oxide layer on the third dielectric layer; forming a first electrode on the emitter region and connected to the emitter region; and forming a second electrode on the second surface of the substrate and connected to the substrate, wherein the first surface of the substrate has first and second textured surfaces, and wherein the first textured surface includes a plurality of first protrusions and a plurality of first depressions and the second textured surface includes a plurality of second protrusions and a plurality of second depressions.