Metallization of solar cells

US12074233B2 · kind B2 · utility

Assignee

• Maxeon Solar Pte. Ltd. · SG

Inventors

• Richard Hamilton Sewell · Los Altos, US
• David Aaron Randolph Barkhouse · Oakland, US
• Junbo Wu · Palo Alto, US
• Michael Cudzinovic · Sunnyvale, US
• Paul Loscutoff · Castro Valley, US
• Joseph Behnke · San Jose, US
• Michel Arsène Olivier Ngamo Toko · Brussels, BE

Key dates

• Filing date: Aug 17, 2021
• Grant date: Aug 27, 2024
• Expiry date: Jul 11, 2042

Classification

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

Abstract

Approaches for the metallization of solar cells and the resulting solar cells are described. In an example, a method of fabricating a solar cell involves forming a barrier layer on a semiconductor region disposed in or above a substrate. The semiconductor region includes monocrystalline or polycrystalline silicon. The method also involves forming a conductive paste layer on the barrier layer. The method also involves forming a conductive layer from the conductive paste layer. The method also involves forming a contact structure for the semiconductor region of the solar cell, the contact structure including at least the conductive layer.