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US 2022/0029104 A1Published application
Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
AssigneeDuk San Neolux Co., Ltd.
InventorsYun Suk LEE, Jong Gwang PARK, Min Ji JO, Jung Hwan PARK, Bum Sung LEE
Life of this patent
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Abstract
Provided is the compound represented by Formula 1, an organic electric element including a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic device thereof, and by comprising the compound represented by Formula 1 and compound represented by Formula 2 in the organic material layer, the driving voltage of the organic electronic element can be lowered, and the luminous efficiency and life time of the organic electronic element can be improved.
Claims25
An organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprises a phosphorescent light emitting layer, and the phosphorescent light emitting layer comprises a first host compound represented by Formula 1 and a second host compound represented by Formula 2:
- wherein:
- X1 is O or S,
- Ar1 and Ar2 are each independently selected from the group consisting of a C6-C18 aryl group, a fluorenyl group, a C2-C16 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group and a C6-C30 aryloxy group,
- Ar3 to Ar5 are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group and a C6-C30 aryloxy group, and Ar4 and Ar5 may be bonded to each other to form a ring,
- L1 to L4 are each independently selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
- R1 to R3 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group, a C6-C30 aryloxy group and -L′-N(Ra)(Rb), and adjacent groups may be bonded to each other to form a ring,
- a is an integer of 0-9, b is an integer of 0-4, c is an integer of 0-3, and where each of these is an integer of 2 or more, each of a plurality of R1s, each of a plurality of R2s, and each of a plurality of R3s are the same as or different from each other,
- n is an integer of 0-3, and where n is an integer of 2 or more, each of a plurality of Ar4s, and each of a plurality of Ar5s are the same as or different from each other,
- L′ is selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, and
- Ra and Rb are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring.
7 more elements
A compound represented by Formula 1-F or Formula 1-G:
- wherein:
- X1 and X3 are each independently O or S,
- Ar1 and Ar2 are each independently selected from the group consisting of a C6-C18 aryl group, a fluorenyl group, a C2-C16 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group and a C6-C30 aryloxy group,
- L1 and L2 are each independently selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
- R1 is selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, a C1-C50 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C30 alkoxyl group, a C6-C30 aryloxy group and -L′-N(Ra)(Rb), and adjacent groups may be bonded to each other to form a ring,
- R5 is selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C6-C20 aryl group, a fluorenyl group, a C2-C20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C20 aliphatic ring, a fused ring of a C3-C20 aliphatic ring with a C6-C20 aromatic ring, a C1-C20 alkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, a C1-C20 alkoxyl group, a C6-C20 aryloxy group, and -La-N(Ra)(Rb), and adjacent groups may be bonded to each other to form a ring,
- a is an integer of 0-9, e is an integer of 0-6, and where each of these is an integer of 2 or more, each of a plurality of R4s and each of a plurality of R5s are the same as or different from each other,
- L′ is selected from the group consisting of a single bond, a C6-C60 arylene group, a fluorenylene group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring, and
- Ra and Rb are each independently selected from the group consisting of a C6-C60 aryl group, a fluorenyl group, a C2-C60 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C60 aliphatic ring, and a fused ring of a C3-C60 aliphatic ring with a C6-C60 aromatic ring,
- La is selected from the group consisting of a single bond, a C6-C20 arylene group, a fluorenylene group, a C2-C20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C20 aliphatic ring, and a combination thereof, and
- Ra and Rb are each independently selected from the group consisting of a C6-C20 aryl group, a fluorenyl group, a C2-C20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C3-C20 aliphatic ring, and a combination thereof.
8 more elements
Dependencies are inferred from the claim text.