Back contact for thin film solar cells

US8410357B2 · kind B2 · utility

Assignee

• Solexant Corporation · US

Inventors

• Puthur Paulson · San Jose, US
• Craig Leidholm · Calabasas, US
• Damoder Reddy · Los Gatos, US
• Charlie Hotz · Mountain View, US

Key dates

• Filing date: Jan 28, 2010
• Grant date: Apr 2, 2013
• Expiry date: Mar 8, 2031

Classification

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

Abstract

Disclosed is a novel thin film photovoltaic device and a process of making. The device comprises an interface layer between the absorber layer and the electrode resulting in an improved back contact and improved device efficiency. The interface layer comprises a material comprising a Ma-(Group VIA)b compound, where M is a transition metal the Group VIA designates Te, Se and/or S.