Dyes for a dye-sensitized solar cell are provided. The dyes for a dye-sensitized solar cell have a structure of wherein each of X and Y independently comprises a substituent, comprising a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, and combinations thereof, and at least one of the X and Y comprises an aromatic group which are substituted a pyrene derivative substituted with an alkyl group or an aryl group, and Z comprises a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a vinyl group, and a substituted or unsubstituted polyvinyl group, and A comprises an acid functional group.