Silicon with structured oxygen doping, its production and use

US6294726A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Christian Hassler · Krefeld, DE
• Hans-Ulrich Hofs · Krefeld, DE
• Wolfgang Koch · Batavia, US
• Siegfried Thurm · Meerbusch, DE
• Otwin Breitenstein · Schraplau, DE

Key dates

• Filing date: Jun 9, 2000
• Grant date: Sep 25, 2001
• Expiry date: Jun 9, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The present invention relates to silicon with a high oxygen content and, at the same time, a high density of crystal lattice dislocations, and to its production. This silicon may be used in photovoltaics. Solar cells which are based on the material according to the invention exhibit high levels of efficiency despite the high oxygen content.