Solar cell having a plurality of conductive contacts

Patent · 19 October 2021

OSTI ID:1859979

Harley, Gabriel; Smith, David D.; Cousins, Peter John

The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes.

• Research Organization: SunPower Corp., San Jose, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC36-07GO17043
• Assignee: SunPower Corporation (San Jose, CA)
• Patent Number(s): 11,152,518
• Application Number: 16/276,381
• OSTI ID: 1859979
• Country of Publication: United States
• Language: English