Patent ID: 8338696

Claim:
A dye for a dye-sensitized solar cell, the dye comprising a benzoindole-based compound represented by Formula 1: wherein A and B are each independently hydrogen or -D-E, and A and B are not simultaneously hydrogen, D is selected from the group consisting of a substituted or unsubstituted C 6 -C 20 aryl group, a substituted or unsubstituted C 2 -C 20 heteroaryl group, a substituted or unsubstituted C 4 -C 20 carbocyclic group, a substituted or unsubstituted C 4 -C 20 heterocyclic group, and combinations thereof, E is an acidic functional group, R is selected from the group consisting of a substituted or unsubstituted C 1 -C 20 alkyl group, a substituted or unsubstituted C 6 -C 20 aryl group, a substituted or unsubstituted C 2 -C 20 heteroaryl group, a substituted or unsubstituted C 4 -C 20 carbocyclic group, a substituted or unsubstituted C 4 -C 20 heterocyclic group, and combinations thereof, R 0 is selected from the group consisting of a C 1 -C 20 alkyl group, a halogen atom, a nitro group, a cyano group, a C 1 -C 20 alkoxy group, a C 1 -C 20 alkylamino group, a hydroxyl group, a C 6 -C 20 aryl group, a C 1 -C 20 alkylthio group, an amino group, a C 6 -C 20 aryloxy group, a C 2 -C 20 heteroaryl group, a C 4 -C 20 heterocyclic group, a C 2 -C 20 alkenyl group, a C 2 -C 20 alkynyl group, and combinations thereof, and s is an integer of 0 to 5.