Abstract: A solar cell comprises a substrate configured to have a plurality of via holes and a first conductive type, an emitter layer placed in the substrate and configured to have a second conductive type opposite to the first conductive type, a plurality of first electrodes electrically coupled to the emitter layer, a plurality of current collectors electrically coupled to the first electrodes through the plurality of via holes, and a plurality of second electrodes electrically coupled to the substrate. The plurality of via holes comprises at least two via holes having different angles.

Abstract: A solar cell and a method of manufacturing the same are disclosed. The solar cell includes a substrate of a first conductive type having at least one via hole; an emitter layer only on at least a portion of the via hole and at least one selected from a group consisting of an incident surface and side surfaces of the substrate, the emitter layer having a second conductive type opposite the first conductive type; at least one first electrode on the incident surface, the first electrode being electrically connected to the emitter layer; a second electrode connected to an opposite surface to the incident surface; and at least one first electrode current collector on the opposite surface, the at least one first electrode current collector being insulated from the second electrode and being electrically connected to the at least one first electrode through the via hole.

Abstract: A solar cell and a method of manufacturing the same are disclosed. The solar cell includes a substrate of a first conductive type having at least one via hole, an emitter layer of a second conductive type opposite the first conductive type formed in the substrate, at least one first electrode formed on the emitter layer, at least one current collector positioned opposite the at least one first electrode with the substrate interposed between the at least one first electrode and the at least one current collector and is electrically connected to the at least one first electrode through the at least one via hole, and a second electrode that is spaced apart from the at least one current collector and is electrically connected to the substrate. A plurality of uneven portions are formed in the at least one via hole.