MECHANICALLY STACKED CELLS FOR FLAT-PLATE MICRO-CONCENTRATORS

摘要

Using cells assemblies where two separate solar cells are mechanically stacked one on top of the other is not a new idea. However, the combination with back-contact cells and with the small cell size in a flat-plate micro-concentrator module yields advantages that were not recognized in larger size systems: assembly can be automated, cell package can be molded in the SOE like an LED, heat is dissipated through the four leads of the package, thermal stress is reduced, the cells can be combined in a series-parallel circuit to maximize power output. These advantages encourage the search for new cells and technologies to be used in conjunction with a silicon bottom cell, which is still the most mature and cost-effective photovoltaic technology.