A method for manufacturing a solar cell includes applying an electrode paste on a semiconductor substrate, the electrode paste including fine metal particles, a binder, and a solvent; and sintering the electrode paste using light to form an electrode, the sintering of the electrode paste to form the electrode including evaporating the solvent included in the electrode paste; and irradiating the light, after the evaporating of the solvent, to evaporate the binder included in the electrode paste and sinter the fine metal particles to form the electrode, the evaporating of the solvent and the irradiating of the light being performed at different temperatures, a temperature to evaporate the binder being higher than a temperature of the evaporating of the solvent, the solvent being evaporated at the temperature of about 80° C. to 150° C., and the binder being evaporated at the temperature of about 100° C. to 500° C.