UV-curing of light-receiving surfaces of solar cells

US11374145B2 · kind B2 · utility

Assignees

• SUNPOWER CORPORATION · US
• TOTAL MARKETING SERVICES · FR

Inventors

• Yu-Chen Shen · Sunnyvale, US
• Périne Jaffrennou · Brussels, BE
• Gilles Olav Tanguy Sylvain Poulain · Palaiseau, FR
• Michael C. Johnson · Alameda, US
• Seung Bum Rim · Pleasanton, US

Key dates

• Filing date: Dec 5, 2019
• Grant date: Jun 28, 2022
• Expiry date: Dec 5, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/547

Abstract

Methods of fabricating solar cells using UV-curing of light-receiving surfaces of the solar cells, and the resulting solar cells, are described herein. In an example, a method of fabricating a solar cell includes forming a passivating dielectric layer on a light-receiving surface of a silicon substrate. The method also includes forming an anti-reflective coating (ARC) layer below the passivating dielectric layer. The method also includes exposing the ARC layer to ultra-violet (UV) radiation. The method also includes, subsequent to exposing the ARC layer to ultra-violet (UV) radiation, thermally annealing the ARC layer.