Selective transformation in functional films, and solar cell applications thereof

US9564542B2 · kind B2 · utility

Assignee

• TETRASUN, INC. · US

Inventors

• Adrian Bruce Turner · Bitterfeld-Wolfen, DE
• Oliver Schultz-Wittmann · Sunnyvale, US
• Denis De Ceuster · Woodside, US
• Douglas E. Crafts · San Jose, US

Key dates

• Filing date: Sep 17, 2010
• Grant date: Feb 7, 2017
• Expiry date: Jan 26, 2032

Classification

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

Abstract

A solar cell formation method, and resulting structure, having a first film and a barrier film over a surface of a doped semiconductor, wherein the optical and/or electrical properties of the first film are transformed in-situ such that a resulting transformed film is better suited to the efficient functioning of the solar cell; wherein portions of the barrier film partially cover the first film and substantially prevent transformation of first film areas beneath the portions of the barrier film.