Back surface field
= Back surface field
A rear doping gradient that reduces minority-carrier access to a recombination-active contact. In a p-type silicon cell, a more heavily doped $p^+$ rear region provides a common example.
= Back surface field
A rear doping gradient that reduces minority-carrier access to a recombination-active contact. In a p-type silicon cell, a more heavily doped $p^+$ rear region provides a common example.