Patent ID: 7371479

Claim:
A polymerized fullerene derivative, comprising: (a) a plurality of fullerene derivatives; (b) one or more first aromatic groups, wherein each of said first aromatic groups comprises one or more proton dissociative groups; and (c) one or more second aromatic groups of Chemical Formula 4: wherein, (i) n is equal to at least 0 and at most 5; (ii) Ar 1′ is a substituted or unsubstituted aryl group; (iii) Ar 2′ is a substituted or unsubstituted aryl group, and (iv) Ar 1′ and Ar 2′ are independently selected (v) each of said first aromatic groups is bonded to at least one carbon atom of one of said plurality of fullerene derivatives, and (vi) each of said second aromatic groups of Chemical Formula 4 is bonded to at least two of said plurality of fullerene derivatives.