Vertical multijunction solar cell

US3969746A · kind A · utility

Assignee

• TEXAS INSTRUMENTS INCORPORATED · US

Inventors

• Don L. Kendall · Albuquerque, US
• Francois A. Padovani · Westwood, US
• Kenneth E. Bean · Richardson, US
• Walter T. Matzen · Richardson, US

Key dates

• Filing date: Dec 10, 1973
• Grant date: Jul 13, 1976
• Expiry date: Dec 10, 1993

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S438/965

Abstract

Disclosed is a method of fabricating a vertical multi-junction cell and the solar cell produced thereby, utilizing an orientation dependent etch to selectively provide parallel grooves in monocrystalline silicon body, followed by the introduction of doping impurities of the opposite conductivity type from the silicon body to provide PN junctions. In some instances the grooves are filled with silicon of the same conductivity type as the silicon body.