Cyclopentaphenanthrene-based compound and organic light emitting device employing the same

A cyclopentaphenanthrene-based compound represented by Formula 1 below:

• wherein Y is a bivalent linking group and selected from the group consisting of a substituted or unsubstituted C6-C30 arylene group and a substituted or unsubstituted C2-C30 heteroarylene group;
• at least one of the Ar groups is a substituent represented by Formula 7 or 8 below, and the others, which are identical to or different from each other, are a substituted or unsubstituted C6-C30 aryl group:
• wherein R1′, R2′, R10 and R11 are each independently selected from the group consisting of a hydrogen atom a halogen atom a cyano group, a hydroxyl group a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C3-C20 cycloalkyl group, a substituted or unsubstituted C5-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group a substituted or unsubstituted C6-C30 aralkyl group and a substituted or unsubstituted C2-C30 heteroaryl group;
• and
• R3 to R9 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C3-C20 cycloalkyl group, a substituted or unsubstituted C5-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aralkyl group and a substituted or unsubstituted C2-C30 heteroaryl group;
• m is 1, 2 or 3;
• and
• Q is a bivalent group represented by one of the formulae below: