High performance silicon crystalline solar cell structure - has more highly doped layer integrated in lightly doped layer in area below metallic contact

摘要

The solar cell structure is preferably a crystalline silicon solar cell with np structure based on p-type silicon substrate and n-type emitter on the front side facing the sun. On the side of the solar cell exposed to the radiation is a layer of lightly doped n+ or p+ layer (2 or 7). In the area of the ohmic contact surface (3/6 or 8/11) of the metallic contact (6 or 11) in the lightly doped layer (2 or 7), more highly doped n++ or p++ layers (3 or 8) are integrated. USE/ADVANTAGE - Esp.for one sided or two-sided illumination. Can be manufactured more simply and achieve an optimal degree of effectiveness.