Patent ID: 8435713

Claim:
A composition, comprising: a C 60 chemical derivative selected from the group consisting of methanofullerene derivatives, PCBM derivatives, ThCBM derivatives, Prato derivatives, Bingel derivatives, diazoline derivatives, azafulleroid derivatives, ketolactam derivatives, and Diels-Alder derivatives; a C 70 chemical derivative selected from the group consisting of methanofullerene derivatives, PCBM derivatives, ThCBM derivatives, Prato derivatives, Bingel derivatives, diazoline derivatives, azafulleroid derivatives, ketolactam derivatives, and Diels-Alder derivatives; wherein the C 60 chemical derivative and the C 70 chemical derivative are both members of the same class of chemical derivatives; C 60 and C 70 in the cumulative range of about 0% to about 50%; one or more C 60 bis-adduct chemical derivative, one or more C 60 tris-adduct chemical derivative, one or more C 70 bis-adduct chemical derivative, and one or more C 70 tris-adduct chemical derivative in the cumulative range of about 0% to about 50%; one or more fullerene greater than C 70 and one or more chemical derivative of fullerenes greater than C 70 in the cumulative range of about 0% to about 3%; one or more oxide of C 60 , one or more oxide of C 70 , one or more oxide of C 60 chemical derivatives, and one or more oxide of C 70 chemical derivatives in the cumulative range of about 0.001% to about 5%; and one or more dimer of C 60 , one or more dimer of C 70 , one or more dimer of C 60 chemical derivatives, and one or more dimer of C 70 chemical derivatives in the cumulative range of about 0% to about 5%.