Patent ID: 8697475
Filing Date: 2014-04-15
Classification: H01L,Y02E

Abstract:
1. A method for manufacturing a bifacial solar cell comprising: forming an emitter layer and a first anti-reflection layer on a first surface of a substrate and forming a back surface field layer and a second anti-reflection layer on a second surface of the substrate; forming a plurality of first contact lines on the first anti-reflection layer and forming a plurality of second contact lines on the second anti-reflection layer, the plurality of first contact lines and the plurality of second contact lines being formed by a dry etching process using a laser; and forming a first electrode on the emitter layer exposed through the plurality of first contact lines and forming a second electrode on the back surface field layer exposed through the plurality of second contact lines, the first electrode and the second electrode being formed at the same time, wherein the first electrode and the second electrode are formed of the same material.