Organic light-emitting device

An organic light-emitting device comprising:

• a first electrode;
• a second electrode facing the first electrode;
• a light-emitting layer interposed between the first electrode and the second electrode;
• and
• an organic layer interposed between the second electrode and the light-emitting layer,
• wherein the light-emitting layer comprises at least one selected from compounds represented by the following [Formula A] and the organic layer comprises at least one selected from compounds represented by the following [Formula B],
• the organic layer comprises an electron injection layer, an electron transport layer, or a layer capable of injecting and transporting electrons,
• wherein L1 is a divalent linker and is a single bond or is selected from a substituted or unsubstituted C6-C50 arylene group, a substituted or unsubstituted C2-C50 heteroarylene group, and a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group,
• m is an integer from 1 to 3, provided that when m is 2 or more, a plurality of L1 are identical to or different from each other,
• X is an oxygen atom (O) or a sulfur atom(S),
• Ar1 is selected from a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C50 heteroaryl group, and a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group,
• R1 to R14 are identical to or different from each other, and are each independently hydrogen, deuterium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C2-C50 heteroaryl group, a substituted or unsubstituted C2-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C50 aryloxy group, a substituted or unsubstituted C1-C30 alkylthioxy group, a substituted or unsubstituted C6-C50 arylthioxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group, a cyano group, a nitro group and a halogen group, with the proviso that any one of R9 to R14 is bonded to the linker L1,
• wherein X21 is a single bond,
• R21 to R24 are identical to or different from each other, and are each independently selected from hydrogen, deuterium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C2-C50 heteroaryl group, a substituted or unsubstituted C2-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C50 aryloxy group, a substituted or unsubstituted C1-C30 alkylthioxy group, a substituted or unsubstituted C6-C50 arylthioxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group, a cyano group, a nitro group, and a halogen group, with the proviso that one or more of R21 to R24 are bonded to each other to further form a substituted or unsubstituted alicyclic or aromatic monocyclic or polycyclic ring, at least one carbon atom of which is substituted with at least one heteroatom selected from nitrogen, oxygen, and sulfur,
• L2 is a single bond, a substituted or unsubstituted C6-C50 arylene group, or a substituted or unsubstituted C2-C50 heteroarylene group,
• Z1 to Z3 are each independently N or CR, with the proviso that at least one of Z1 to Z3 is N, wherein R's are identical to or different from each other, and are each independently hydrogen, a substituted or unsubstituted C1-C30 alkyl group, or a substituted or unsubstituted C2-C30 alkenyl group, or each R is bonded to Ar21 or Ar22 to form a substituted or unsubstituted aromatic hydrocarbon or a substituted or unsubstituted aromatic heterocycle,
• Ar21 and Ar22 are identical to or different from each other, and are each independently hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C50 heteroaryl group, or are bonded to R to form a substituted or unsubstituted aromatic hydrocarbon or a substituted or unsubstituted aromatic heterocycle,
• a21 to a23 are integers from 0 to 4, provided that when a21 to a23 are 2 or more, a plurality of R21 to R23 are identical to or different from each other, and
• a24 is an integer from 0 to 3, provided that when a24 is 2 or more, a plurality of R24 are identical to or different from each other.

An organic light-emitting device comprising:

• a first electrode;
• a second electrode facing the first electrode;
• a light-emitting layer interposed between the first electrode and the second electrode;
• and
• an organic layer interposed between the second electrode and the light-emitting layer,
• wherein the light-emitting layer comprises at least one selected from compounds represented by the following [Formula A] and the organic layer comprises at least one selected from compounds represented by the following [Formula C] or [Formula D],
• the organic layer comprises an electron injection layer, an electron transport layer, or a layer capable of injecting and transporting electrons,
• wherein L1 is a divalent linker and is a single bond or is selected from a substituted or unsubstituted C6-C50 arylene group, a substituted or unsubstituted C2-C50 heteroarylene group, and a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group,
• m is an integer from 1 to 3, provided that when m is 2 or more, a plurality of L1 are identical to or different from each other,
• X is an oxygen atom (O) or a sulfur atom(S),
• Ar1 is selected from a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C50 heteroaryl group, and a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group,
• R1 to R14 are identical to or different from each other, and are each independently hydrogen, deuterium, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C2-C30 alkenyl group, a substituted or unsubstituted C2-C30 alkynyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C2-C50 heteroaryl group, a substituted or unsubstituted C2-C30 heterocycloalkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C50 aryloxy group, a substituted or unsubstituted C1-C30 alkylthioxy group, a substituted or unsubstituted C6-C50 arylthioxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C3-C50 mixed aliphatic-aromatic ring group, a cyano group, a nitro group and a halogen group, with the proviso that any one of R9 to R14 is bonded to the linker L1,
• wherein at least one of Z4 to Z6 is N and the remainder is CH, and at least one of Z7 to Z9 is N and the remainder is CH,
• L3 and L4 are identical to or different from each other, and are each independently a single bond, a substituted or unsubstituted C6-C30 arylene group, or a substituted or unsubstituted C2-C30 heteroarylene group, where at least one of L3 and L4 is a substituted or unsubstituted C2-C30 heteroarylene group, and
• Ar31 to Ar34 are identical to or different from each other, and are each independently a substituted or unsubstituted C6-C30 aryl group or a substituted or unsubstituted C2-C30 heteroaryl group,
• wherein at least one of Z10 to Z12 is N and the remainder is CH,
• L5 and L6 are identical to or different from each other, and are each independently a single bond, a substituted or unsubstituted C6-C30 arylene group, or a substituted or unsubstituted C2-C30 heteroarylene group, where at least one of L5 and L6 is a substituted or unsubstituted C2-C30 heteroarylene group, and
• Ar41 and Ar42 are identical to or different from each other, and are each independently a substituted or unsubstituted C6-C30 aryl group or a substituted or unsubstituted C2-C30 heteroaryl group, and
• n is 1 or 2.