Nano-c, Inc.

Plextronics, Inc.

Solvay USA Inc.

Thomas A Lada, Ii

Henning Richter

Darin W Laird

Viktor Vejins

Reza Stegamat

Larry Scott

Lawrence T Scott

Victor Vejins

Malika Daadi, Legal Representative

Photovoltaic cells comprising an active layer comprising, as p-type material, conjugated polymers such as polythiophene and regioregular polythiophene, and as n-type material at least one fullerene derivative. The fullerene derivative can be C60, C70, or C84. The fullerene also can be functionalized with indene groups. Improved efficiency can be achieved.

Organic photovoltaic devices comprising fullerenes and derivatives thereof

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.

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

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Brighton, MA, United States of America

Thomas A Lada, Ii