Polycyclic compounds and organic light-emitting device comprising the same

An organic light-emitting device comprising:

• a first electrode;
• a second electrode provided opposite to the first electrode;
• and
• an organic layer interposed between the first electrode and the second electrode,
• wherein the organic layer includes a hole injection layer, a hole transport layer, an electron blocking layer, a functional layer having both hole injection and hole transport functions, a light-emitting layer, an electron transport layer, an electron injection layer, a hole blocking layer, a functional layer having both electron injection and electron transport functions, and
• the light-emitting layer includes at least one of polycyclic compounds represented by the following [Chemical Formula 1] or [Chemical Formula 2]:
• in [Chemical Formula 1] and [Chemical Formula 2],
• rings A to C are the same as or different from each other, and each independently any one selected from a substituted or unsubstituted C6-C50 aromatic hydrocarbon ring, a substituted or unsubstituted C3-C50 aliphatic hydrocarbon ring, a substituted or unsubstituted C2-C50 aromatic heteroring, a substituted or unsubstituted C2-C50 aliphatic heteroring, and a substituted or unsubstituted ring in which a C3-C30 aliphatic ring and a C3-C30 aromatic ring are fused;
• X1 and X2 are the same as or different from each other, and each independently any one selected from O, S, Se, NR3, CR4R5, SiR6R7 and GeR6R9;
• Y is any one selected from O, S, NR3, CR4R5, SiR6R7 and GeR8R9;
• R1 and R2 are the same as or different from each other, and each independently any one selected from a substituted or unsubstituted C1-C30 arylamine group, a substituted or unsubstituted C1-C30 arylsilyl group, and a substituted or unsubstituted C1-C30 arylgermanium group;
• R3 to R9 are the same as or different from each other, and each independently any one selected from hydrogen, deuterium, tritium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 halogenated alkyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C3-C50 cycloalkyl group, a substituted or unsubstituted C2-C50 heterocycloalkyl group, a substituted or unsubstituted C2-C50 heteroaryl group, a substituted or unsubstituted cyclic group in which a C3-C30 aliphatic ring and a C5-C30 aromatic ring are fused, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C1-C30 alkylthioxy group, a substituted or unsubstituted C5-C30 arylthioxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a substituted or unsubstituted germanium group, a nitro group, a cyano group, and a halogen group;
• m is an integer of 1 to 3, and when m is an integer of 2 or greater, the respective R2s are the same as or different from each other,
• n is an integer of 1 to 3, and when n is an integer of 2 or greater, the respective R1s and R2s in the parentheses are the same as or different from each other;
• and
• the ‘substituted’ in the ‘substituted or unsubstituted’ in [Chemical Formula 1] and [Chemical Formula 2] means being substituted with one, or two or more substituents selected from the group consisting of deuterium, tritium, a C1-C24 alkyl group, a C1-C24 halogenated alkyl group, a C2-C24 alkenyl group, a C2-C24 alkynyl group, a C3-C30 cycloalkyl group, a C1-C24 heteroalkyl group, a C6-C30 aryl group, a C7-C30 arylalkyl group, a C7-C30 alkylaryl group, a C2-C30 heteroaryl group, a C2-C30 heteroarylalkyl group, a cyclic group in which a C3-C24 aliphatic ring and a C5-C24 aromatic ring are fused, a C1-C24 alkoxy group, a C1-C30 amine group, a C1-C30 silyl group, a C1-C30 germanium group, a C6-C24 aryloxy group, a C6-C24 arylthionyl group, a cyano group, a halogen group, a hydroxyl group and a nitro group, or being substituted with a substituent in which two or more of the above-mentioned substituents are linked, hydrogen atoms in the substituents are optionally substituted with one or more deuterium or tritium atoms, and two or more adjacent substituents are optionally linked to each other to further form an alicyclic or aromatic monocyclic or polycyclic ring.