Method for the manufacture of a solar cell and the resulting solar cell

US8349637B2 · kind B2 · utility

Assignee

• Gebr. Schmid GmbH · DE

Inventors

• Christian Schmid · San Diego, US
• Dirk Habermann · Kirchzarten, DE

Key dates

• Filing date: Sep 4, 2009
• Grant date: Jan 8, 2013
• Expiry date: Dec 27, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50

Abstract

In a method for the production of a solar cell, a flat aluminium layer is applied to the back of a solar cell substrate. The aluminium is alloyed into the silicon substrate by the effect of the temperature and forms an aluminium BSF. The remaining aluminium that has not been alloyed into the silicon is subsequently removed. The aluminium BSF is transparent to light.