Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
Provided are a compound for use in an organic electronic element that improves luminous efficiency, stability, and lifespan of the element, a composition comprising the compound, an organic electronic element employing the compound, and an electronic device thereof.
1. A compound represented by Formula 1:
wherein:
R 1 and R 2 are the same or different from each other and are independently selected from the group consisting of hydrogen; deuterium; a C 6 -C 60 aryl group; a fluorenyl group; a C 2 -C 60 heterocyclic group including at least one hetero atom of O, N, S, Si or P; a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring; a C 1 -C 50 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 1 -C 30 alkoxy group; and a C 6 -C 30 aryloxy group, wherein adjacent groups are not bonded to each other to form a ring,
R 3 is selected from the group consisting of hydrogen; deuterium; a C 6 -C 60 aryl group; a fluorenyl group; a C 2 -C 60 heterocyclic group including at least one hetero atom of O, N, S, Si or P; a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring; a C 1 -C 50 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 1 -C 30 alkoxy group; and a C 6 -C 30 aryloxy group, wherein an adjacent plurality of R 3 may be bonded to each other to form a ring,
R 4 is hydrogen; deuterium; or a C 6 -C 60 aryl group, and at least one of R 4 is a C 6 -C 60 aryl group,
L 1 is a single bond; or a C 6 -C 60 arylene group,
Ar 1 is a C 6 -C 60 aryl group; or a C 2 -C 60 heterocyclic group including at least one heteroatom of O, N, S, Si or P,
X is O or S,
a and c are independently an integer of 0 to 4, b is an integer of 0 to 3, d is an integer of 1 to 7,
wherein the aryl group, arylene group, heterocyclic group, fluorenyl group, fused ring group, alkyl group, alkenyl group, alkynyl group, alkoxyl group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium; halogen; a silane group; a siloxane group; a boron group; a germanium group; a cyano group; a nitro group; a C 1 -C 20 alkylthio group; a C 1 -C 20 alkoxyl group; a C 6 -C 20 aryloxy group; a C 1 -C 20 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 6 -C 20 aryl group; a C 6 -C 20 aryl group substituted with deuterium; a fluorenyl group; a C 2 -C 20 heterocyclic group; a C 3 -C 20 aliphatic ring; a C 7 -C 20 arylalkyl group; a C 8 -C 20 arylalkenyl group; and a C 7 -C 20 alkylaryl group, where hydrogen of the substituents may be substituted with one or more deuterium, and the substituents may be bonded to each other to form a saturated or unsaturated ring, wherein the term ‘ring’ means a C 3 -C 60 aliphatic ring or a C 6 -C 60 aromatic ring or a C 2 -C 60 heterocyclic group or a fused ring formed by the combination thereof with the proviso that the aryl group of R 4 does not have a substituent(s) forming the heterocyclic group.
2. The compound according to claim 1 , wherein L 1 is represented by any of formulas <L-1>to <L-19>:
wherein:
R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , R 20 , and R 21 are each the same or different, and each independently selected from the group consisting of hydrogen; deuterium; halogen; a cyano group; a nitro group; a C 1 -C 20 alkoxyl group; a C 6 -C 20 aryloxy group; a C 1 -C 20 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 6 -C 20 aryl group; a C 6 -C 20 aryl group substituted with deuterium; a fluorenyl group; a C 2 -C 20 heterocyclic group; a C 3 -C 20 aliphatic ring; a C 7 -C 20 arylalkyl group; a C 8 -C 20 arylalkenyl group; and a C 7 -C 20 alkylaryl group, or adjacent groups thereof can be bonded to each other to form an aromatic ring,
g, j and k are independently an integer of 0 to 4, h and i are independently an integer of 0 to 6, and
* means the position to be bonded.
3. The compound according to claim 1 , wherein Ar 1 is any of Formulas A-1 to A-11:
wherein:
Z is O, S or C(R′) (R″),
R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 , R 31 , R′, and R″ are each the same or different, and each independently selected from the group consisting of hydrogen; deuterium;
halogen; a cyano group; a nitro group; a C 1 -C 20 alkoxyl group; a C 6 -C 20 aryloxy group; a C 1 -C 20 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 6 -C 20 aryl group; a C 6 -C 20 aryl group substituted with deuterium; a fluorenyl group; a C 2 -C 20 heterocyclic group; a C 3 -C 20 aliphatic ring; a C 7 -C 20 arylalkyl group; a C 8 -C 20 arylalkenyl group; and a C 7 -C 20 alkylaryl group, or adjacent groups thereof can be bonded to each other to form an aromatic ring,
R b is selected from the group consisting of a single bond; a C 6 -C 20 arylene group; a C 2 -C 20 heterocyclic group including at least one heteroatom of O, N, S, Si or P; a fused ring group of a C 3 -C 20 aliphatic ring and a C 6 -C 20 aromatic ring; a C 1 -C 20 alkylene group; and
a C 2 -C 20 alkenylene group;
R c is selected from the group consisting of hydrogen; deuterium; a C 6 -C 20 aryl group; a C 2 -C 20 heterocyclic group including at least one hetero atom of O, N, S, Si or P; a fused ring group of a C 3 -C 20 aliphatic ring and a C 6 -C 20 aromatic ring; a C 1 -C 20 alkyl group; and a C 2 -C 20 alkenyl group;
R b and R c can be bonded to each other to form a ring,
hydrogens of R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 and R 31 , R′, R″, R b and R c may be substituted with one or more deuterium, and
* means the position to be bonded.
4. The compound according to claim 1 , wherein the compound represented by Formula 1 is any of Compounds P-1 to P-100:
5. A composition for an organic electronic element comprising a mixture of a compound of claim 1 and a compound represented by Formula 4 or Formula 5:
wherein:
L 12 , L 13 , L 14 and L 15 are each independently selected from the group consisting of a single bond; a C 6 -C 60 arylene group; a fluorenylene group; a C 2 -C 60 heterocyclic group including at least one heteroatom of O, N, S, Si or P; and a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring,
Ar 12 , Ar 13 and Ar 14 are each independently selected from the group consisting of a C 6 -C 60 aryl group; a fluorenyl group; a C 2 -C 60 heterocyclic group including at least one heteroatom of O, N, S, Si or P; a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring; a C 3 -C 60 aliphatic ring; a C 1 -C 50 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 1 -C 30 alkoxyl group; and a C 6 -C 30 aryloxy group,
Ar 15 is selected from the group consisting of a C 6 -C 60 aryl group; a fluorenyl group; a C 2 -C 60 heterocyclic group including at least one heteroatom of O, N, S, Si or P; a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring; and -L′-N(R a )(R b ),
L′ is selected from the group consisting of a single bond; a C 6 -C 60 arylene group; a fluorenylene group; a C 2 -C 60 heterocyclic group including at least one heteroatom of O, N, S, Si or P; and a C 3 -C 60 aliphatic ring;
R 51 , R 52 , R 53 , R a and R b are the same as the definition of Ar 12 above, or R 51 and R 52 can be bonded to each other to form a spiro ring,
Y 10 is O, S, C(R 51 )(R 52 ) or NR 53 ,
Ring B is a C 6 -C 20 aryl group,
R 31 and R 32 are each the same or different, and each independently selected from the group consisting of hydrogen; deuterium; halogen; a cyano group; a C 6 -C 60 aryl group; a fluorenyl group; a C 2 -C 60 heterocyclic group including at least one hetero atom of O, N, S, Si or P; a fused ring group of a C 3 -C 60 aliphatic ring and a C 6 -C 60 aromatic ring; a C 1 -C 50 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 1 -C 30 alkoxyl group; and a C 6 -C 30 aryloxy group, or an adjacent plurality of R 31 or plurality of R 32 may be bonded to each other to form a ring,
ba and bb are each independently an integer of o to 4,
wherein the aryl group, arylene group, heterocyclic group, fluorenyl group, fluorenylene group, fused ring group, aliphatic ring group, alkyl group, alkenyl group, alkynyl group, alkoxy group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium; halogen; a silane group; a siloxane group; a boron group; a germanium group; a cyano group; a nitro group; a C 1 -C 20 alkylthio group; a C 1 -C 20 alkoxyl group; a C 1 -C 20 alkyl group; a C 2 -C 20 alkenyl group; a C 2 -C 20 alkynyl group; a C 6 -C 20 aryl group; a C 6 -C 20 aryl group substituted with deuterium; a fluorenyl group; a C 2 -C 20 heterocyclic group; a C 3 -C 20 aliphatic ring; a C 7 -C 20 arylalkyl group; a C 8 -C 20 arylalkenyl group; a C 7 -C 20 alkylaryl group, wherein hydrogen of the substituents may be substituted with one or more deuterium, and the substituents may be bonded to each other to form a saturated or unsaturated ring, wherein the term ‘ring’ means a C 3 -C 60 aliphatic ring or a C 6 -C 60 aromatic ring or a C 2 -C 60 heterocyclic group or a fused ring formed by the combination thereof.
6. The composition for an organic electronic element according to claim 5 , wherein Formula 4 comprises a compound selected from Compounds H-1 to H-124:
7. The composition for an organic electronic element according to claim 5 , wherein Formula 5 comprises a compound selected from Compounds S-1 to S-116:
8. An organic electronic 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 the compound of claim 1 .
9. The organic electronic element according to claim 8 , further comprising a light efficiency enhancing layer formed on at least one surface of the first electrode and the second electrode, the surface being opposite to the organic material layer.
10. The organic electronic element according to claim 8 , wherein the organic material layer comprises 2 or more stacks comprising a hole transport layer, an emitting layer and an electron transport layer sequentially formed on the first electrode.
11. The organic electronic element according to claim 10 , the organic material layer further comprises a charge generation layer formed between the 2 or more stacks.
12. An electronic device comprising a display device comprising the organic electronic element of claim 8 ; and a control unit for driving the display device.
13. The electronic device according to claim 12 , wherein the organic electronic element is at least one of an OLED, an organic solar cell, an organic photo conductor (OPC), organic transistor (organic TFT) and an element for monochromic or white illumination.
14. An organic electronic 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 the composition for an organic electronic element of claim 5 .
15. An electronic device comprising a display device comprising the organic electronic element of claim 14 ; and a control unit for driving the display device.
16. A method for reusing a compound of Formula 1 of claim 1 comprising:
recovering a crude organic light emitting material comprising the compound of Formula 1 from a deposition apparatus used in a process for depositing an organic emitting material to prepare an organic light emitting device;
removing impurities from the crude organic light emitting material;
recovering the organic light emitting material after the impurities are removed; and
purifying the recovered organic light emitting material to have a purity of 99.9% or higher.