Precursors and uses for CIS and CIGS photovoltaics

US8715775B2 · kind B2 · utility

Assignee

• Precursor Energetics, Inc. · US

Inventors

• Kyle L. Fujdala · San Jose, US
• Zhongliang Zhu · San Jose, US
• Wayne A. Chomitz · Oakland, US
• Matthew C. Kuchta · San Francisco, US

Key dates

• Filing date: Sep 29, 2012
• Grant date: May 6, 2014
• Expiry date: Sep 29, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes for making a photovoltaic layer on a substrate by depositing a first layer of an ink onto the substrate, wherein the ink contains one or more compounds having the formula MB(ER)3, wherein MB is In, Ga, or Al, E is S or Se, and depositing a second layer of one or more copper chalcogenides or a CIGS material.