| 摘要 |
A fullerene derivative having 60 or more carbon atoms includes at least one structure having the following formula (I): wherein R1, R2 and R3 independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryl group and a substituted or unsubstituted monofunctional heterocyclic group; and at least one of R1, R2 and R3 comprises the following formula (II): wherein R4 represents a substituted or unsubstituted alkyl group having 4 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 4 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 4 to 30 carbon atoms or a substituted or unsubstituted aralkyl group having 4 to 30 carbon atoms. |
