Abstract: Processes for making light to current converter devices are provided. The processes can be used to make light to current converter devices having P-N junctions located on only the top surface of the cell, located on the top surface and symmetrically or asymmetrically along a portion of the inner surface of the via holes, located on the top surface and full inner surface of the via holes, or located on the top surface, full inner surface of the via holes, and a portion of the bottom surface of the cell. The processes may isolate the desired P-N junction by etching the emitter, forming a via hole after forming the emitter, using a barrier layer to protect portions of the emitter from etching, or using a barrier layer to prevent the emitter from being formed on portions of the substrate.

Abstract: Back contact solar cell modules and methods of manufacturing the same. The solar cell module comprises a back surface with a plurality of first electrodes and a plurality of second electrodes formed thereon, the plurality of first electrodes and the plurality of second electrodes being of opposite polarities, the back surface being configured to form an electric field thereon of the opposite polarity as the plurality of first electrodes; a first connecting strip electrically connecting the plurality of first electrodes; and an insulative member between the back surface and the first connecting strip.