Organic photovoltaic devices comprising fullerenes and derivatives thereof and improved methods of making fullerene derivatives

US8715606B2 · kind B2 · utility

Assignees

• Plextronics, Inc. · US
• NANO-C, INC. · US

Inventors

• Darin W. Laird · Pittsburgh, US
• Henning Richter · Newton, US
• Viktor Vejins · Concord, US
• Larry Scott · Fort Collins, US
• Thomas Lada · Somerville, US

Key dates

• Filing date: Dec 19, 2008
• Grant date: May 6, 2014
• Expiry date: Feb 8, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

Improved methods of fullerene derivative production including use of less solvent, or elimination of solvent, as well as use of shorter reaction times and higher reaction temperatures. Methods useful for production of bis-, tris-, tetra-, penta-, and hexa-fullerene derivatives. Indene is a preferred derivative. The derivatives used in active layers for solar cell applications.