Abstract: The embodiments relate to a method for producing a solar cell having a rear-side contact with a tunnel barrier. A monocrystalline wafer having a front side and a rear side may be provided with silicon and a dopant. A tunnel barrier is produced on the wafer, and a polycrystalline or amorphous layer is deposited on the tunnel barrier. The polycrystalline or amorphous layer includes silicon and a dopant. The polycrystalline or amorphous layer is removed on the front side by gas-phase etching.
Type:
Application
Filed:
July 21, 2023
Publication date:
November 9, 2023
Applicants:
Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Nines Photovoltaics
Inventors:
Marc Hofmann, Sebastian Mack, Bishal Kafle, Jochen Rentsch, Nabeel Wahab Khan, Laurent Clochard, Edward Duffy