Progress on High Efficiency Silicon Solar Cells

An approach to obtain high efficiency Si solar cells, based on model-assisted technology is presented. Using PC-1D program, the Deep Emitter cell, developed in our Institute, has been accurately modeled. The theoretical results obtained in this way are in good agreement with experimental ones. It allows us to investigate the Deep Emitter cell behavior. Then it is used to propose and develop a novel structure to improve the efficiency of this cell. We call it the Deep Emitter Rear Locally-diffused cell. Results on these cells for p and n substrates are presented here.