Patent ID: 8481847
Filing Date: 2013-07-09
Classification: H01L,Y02E

Abstract:
1. A method of manufacturing a solar cell, the method comprising: forming at least one via hole penetrating a substrate of a first conductive type; forming an emitter layer of a second conductive type opposite the first conductive type on all surfaces of the substrate including a side wall formed by the substrate in the at least one via hole; forming an anti-reflection layer only on the emitter layer formed on a first surface of the substrate opposite a second surface of the substrate and on the side wall formed by the substrate in the at least one via hole; forming a passivation layer only on the second surface of the substrate and on the side wall formed by the substrate in the at least one via hole; forming a plurality of first electrodes connected to the emitter layer on the first surface of the substrate; forming a first electrode current collector on the second surface of the substrate and in the at least one via hole, the first electrode current collector being connected to the plurality of first electrodes through the at least one via hole; forming an electrode conductive layer having a second electrode passing through the passivation layer and locally connected with the second surface of the substrate; and forming a second electrode current collector connected to the second electrode.