Method for producing a photovoltaic module using an IR laser

US7883924B2 · kind B2 · utility

Assignee

• SCHOTT SOLAR AG · DE

Inventors

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

Key dates

• Filing date: Jan 21, 2009
• Grant date: Feb 8, 2011
• Expiry date: Jan 21, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50

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) with a laser (14) emitting infrared radiation. During patterning of the semiconductor layer (4) and the back electrode layer (5) the power of the laser (14) is so reduced that the front electrode layer (3) is not damaged.