公开(公告)号：US11967657B2

公开(公告)日：2024-04-23

申请号：US16841541

申请日：2020-04-06

申请人： Maxeon Solar Pte. Ltd.

发明人： Gabriel Harley ,  Taeseok Kim ,  Richard Hamilton Sewell ,  Michael Morse ,  David D. Smith ,  Matthieu Moors ,  Jens-Dirk Moschner

IPC分类号： H01L31/0224 ,  H01L31/0236 ,  H01L31/028 ,  H01L31/0475 ,  H01L31/05 ,  H01L31/068 ,  H01L31/0745

CPC分类号： H01L31/02245 ,  H01L31/022441 ,  H01L31/02363 ,  H01L31/028 ,  H01L31/0475 ,  H01L31/0512 ,  H01L31/0516 ,  H01L31/0682 ,  H01L31/0745 ,  Y02E10/50 ,  Y02E10/547 ,  Y02P70/50

摘要： Approaches for the foil-based metallization of solar cells and the resulting solar cells are described. In an example, a solar cell includes a substrate. A plurality of alternating N-type and P-type semiconductor regions is disposed in or above the substrate. A conductive contact structure is disposed above the plurality of alternating N-type and P-type semiconductor regions. The conductive contact structure includes a plurality of metal seed material regions providing a metal seed material region disposed on each of the alternating N-type and P-type semiconductor regions. A metal foil is disposed on the plurality of metal seed material regions, the metal foil having anodized portions isolating metal regions of the metal foil corresponding to the alternating N-type and P-type semiconductor regions.