A fullerene derivative represented by the following Chemical Formula 2: wherein: n is an integer of 1 to 5; when n is 2 or greater, structures within a parenthesis are the same as or different from each other; Cn is fullerene of C 60 to C 120; R2 to R6 are the same as or different from each other, and each independently hydrogen; a halogen group; a nitro group; a cyano group; a carboxylic acid group; a hydroxyl group; a substituted or unsubstituted carbonyl group; a sulfo group (-SO 3 H); a substituted or unsubstituted alkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted ester group; a substituted or unsubstituted thioester group; a substituted or unsubstituted amide group; a substituted or unsubstituted sulfonyl group (-SO 2 -); a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylalkyl group; a substituted or unsubstituted heteroarylalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroring group, or adjacent substituents bond to each other to form a substituted or unsubstituted hydrocarbon ring; or a substituted or unsubstituted heteroring; o is an integer of 1 to 3, and when o is an integer of 2 or greater, two or more Ls are the same as or different from each other; L is substituted or unsubstituted alkylene; and R is hydrogen, a substituted or unsubstituted carbonyl group or a substituted or unsubstituted alkyl group, wherein substituted or unsubstituted means being substituted with one or more substituents selected from the group consisting of a halogen group; a nitro group; a cyano group; a carbonyl group; a sulfo group; an alkyl group; an allyl group; an alkoxy group; a cycloalkyl group; an alkenyl group; a sulfonyl group; a sulfoxy group; an arylalkyl group; an aryl group; and a heteroring group, or having no substituents, or being substituted with a substituent linking two or more substituents of the substituents illustrated above, or having no substituents. n is an integer of 1 to 5; when n is 2 or greater, structures within a parenthesis are the same as or different from each other; Cn is fullerene of C 60 to C 120; R2 to R6 are the same as or different from each other, and each independently hydrogen; a halogen group; a nitro group; a cyano group; a carboxylic acid group; a hydroxyl group; a substituted or unsubstituted carbonyl group; a sulfo group (-SO 3 H); a substituted or unsubstituted alkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted ester group; a substituted or unsubstituted thioester group; a substituted or unsubstituted amide group; a substituted or unsubstituted sulfonyl group (-SO 2 -); a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylamine group; a substituted or unsubstituted arylamine group; a substituted or unsubstituted arylalkyl group; a substituted or unsubstituted heteroarylalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heteroring group, or adjacent substituents bond to each other to form a substituted or unsubstituted hydrocarbon ring; or a substituted or unsubstituted heteroring; o is an integer of 1 to 3, and when o is an integer of 2 or greater, two or more Ls are the same as or different from each other; L is substituted or unsubstituted alkylene; and R is hydrogen, a substituted or unsubstituted carbonyl group or a substituted or unsubstituted alkyl group, wherein substituted or unsubstituted means being substituted with one or more substituents selected from the group consisting of a halogen group; a nitro group; a cyano group; a carbonyl group; a sulfo group; an alkyl group; an allyl group; an alkoxy group; a cycloalkyl group; an alkenyl group; a sulfonyl group; a sulfoxy group; an arylalkyl group; an aryl group; and a heteroring group, or having no substituents, or being substituted with a substituent linking two or more substituents of the substituents illustrated above, or having no substituents.