Method for producing a photovoltaic module

US8021911B2 · kind B2 · utility

Assignee

• SCHOTT SOLAR AG · DE

Inventors

• Peter Lechner · Vaterstetten, DE
• Walter Psyk · Munich, DE

Key dates

• Filing date: Jan 16, 2009
• Grant date: Sep 20, 2011
• Expiry date: Jun 11, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

For producing a photovoltaic module (1), the front electrode layer (3), the semi-conductor layer (4) and the back electrode layer (5) are patterned by separating lines (6, 7, 8) to form series-connected cells (C1, C2, . . . Cn, Cn+1). The patterning of the front electrode layer (3) and of the semiconductor layer (4) is done with a laser (13) emitting infrared radiation. During patterning of the semiconductor layer (4) the power of the laser (13) is so reduced that the front electrode layer (3) is not damaged.