Patent ID: 9343606
Filing Date: 2016-05-17
CPC Classification: H01L,H02S,Y02E,Y02P

Claim Text:
1. A solar cell comprising a semiconductor layer comprising silicon, germanium, alloys thereof or combinations thereof having a front surface and a rear surface, a first doped domain along at least a portion of the front surface, a reflective coating over at least a portion of the rear surface, a second doped domain along at least a portion of the rear surface, a first electrical interconnect and a second electrical interconnect, wherein at least a portion of the first doped domain, of the second doped domain or of both doped domains protrude as a structure above the semiconductor surface and extend into the semiconductor surface and the portion protruding above the semiconductor surface consists essentially of doped silicon, doped germanium or alloys thereof or combinations thereof; and wherein the first electrical interconnect is in contact with the first doped domain and the second electrical interconnect is in contact with the second doped domain.