Solar cell and method for manufacturing the same

A solar cell capable of improving efficiency, and a method for manufacturing the same is disclosed, wherein the method for manufacturing the solar cell comprises forming seeds in a predetermined surface portion of a semiconductor substrate doped with a first dopant through the use of silicon source gas; forming an irregularity structure on the semiconductor substrate by growing the seeds through a heat-treatment process; forming a first semiconductor layer doped with a second dopant in the semiconductor substrate with the irregularity structure, wherein the second dopant is different from the first dopant; and forming a front electrode at one side of the semiconductor substrate, the front electrode electrically connected to the first semiconductor layer.