METHOD FOR INTERCONNECTING BACK CONTACT SOLAR CELLS AND PHOTOVOLTAIC MODULE EMPLOYING SAME

摘要

A back side contact photovoltaic (PV) cell apparatus including a crystalline silicon substrate having a front side for receiving light, a back side opposite said front side and one or more semiconductor junctions defined by one or more junction-forming regions of a first polarity and one or more junction-forming regions of a second polarity. The apparatus further includes a first plurality of exposed metal contact portions on said back side and spaced apart in two orthogonal directions. Furthermore, the apparatus includes a second plurality of exposed metal contact portions spaced apart in said two orthogonal directions, wherein substantially all of said columns of said second set are between adjacent columns of said first set, and whereby said adjacent columns of said exposed metal contact portions on said back side are of opposite polarity to facilitate connection of parallel spaced apart electrical conductors on an electrode on said back side.