Heterocyclic compound and organic light-emitting device including the same

A heterocyclic compound represented by Formula 1 or Formula 2 below:

• wherein in Formulae 1 and 2,
• R1 to R5 are each independently a hydrogen, a deuterium, a substituted or unsubstituted C1 to C60 alkyl group, a substituted or unsubstituted C2 to C60 alkenyl group, a substituted or unsubstituted C2 to C60 alkynyl group, a substituted or unsubstituted C3 to C60 cycloalkyl group, a substituted or unsubstituted C3 to C60 cycloalkenyl group, a substituted or unsubstituted C5 to C60 cycloalkynyl group, a substituted or unsubstituted C6 to C60 aryl group, a substituted or unsubstituted C2 to C60 heteroaryl group excluding a substituted or unsubstituted benzoimidazol group, or a substituted or unsubstituted C6 to C60 arylamino group;
• Y is a substituted or unsubstituted C6 to C60 arylene group, or a substituted or unsubstituted C2 to C60 heteroarylene group;
• and
• n is 0 or 1.