Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
Provided are a compound of Formula 1; 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, comprising a mixture of a compound of Formula 1 and a compound of Formula 2, or comprising a compound of Formula 3, a subgenus of Formula 1, in the organic material layer; and an electronic device comprising the element, which has lowered driving voltage and increased luminous efficiency and life time.
1. 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 as host a first compound represented by Formula 1 and a second compound represented by Formula 2:
wherein,
X 1 is O or S,
Ar 1 , Ar 2 , and Ar 4 to Ar 6 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, a C 1 -C 30 alkyl group, a C 2 -C 30 alkenyl group, a C 2 -C 30 alkynyl group, a C 1 -C 30 alkoxyl group and a C 6 -C 30 aryloxy group,
L 1 to L 6 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
R 1 is 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, 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, a C 6 -C 30 aryloxy group and -L′-N(R a )(R b ), and adjacent R 1 s are not linked to each other to form a ring,
a is an integer of 0 to 9, and where a is an integer of 2 or more, a plurality of R 1 s are the same as or different from each other,
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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
R a and R b 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
Ar 1 to Ar 2 , L 1 to L 6 , R 1 , L′, R a , and R b , may be each optionally substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted with a C 1 -C 20 alkyl group or a C 6 -C 20 aryl 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 7 -C 20 arylalkyl group and a C 8 -C 20 arylalkenyl group, and
Ar 4 to Ar 6 may be each optionally substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted with a C 1 -C 20 alkyl group or a C 6 -C 20 aryl 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 7 -C 20 arylalkyl group, a C 8 -C 20 arylalkenyl group and -L′-N(R a )(R b ).
2. The organic electric element of claim 1 , wherein L 1 to L 6 are each independently represented by one of Formulas b-1 to b-13:
wherein,
R 5 to R 7 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C 6 -C 20 aryl group, a fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 1 -C 20 alkyl group, a C 2 -C 20 alkenyl group, a C 2 -C 20 alkynyl group, a C 1 -C 20 alkoxyl group, and a C 6 -C 20 aryloxy group,
Y is N-(L a -Ar a ), O, S or C(R′)(R″),
Z 1 to Z 3 are each independently C, C(R′) or N, and at least one of Z 1 to Z 3 is N,
f is an integer of 0 to 6, e, g, h and i are each an integer of 0 to 4, j and k are each an integer of 0 to 3, l is an integer of 0 to 2, m is an integer of 0 to 3, and where they are each an integer of 2 or more, a plurality of R 5 s, a plurality of R 6 s, or a plurality of R 7 s are the same as or different from each other,
R′ and R″ are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C 6 -C 20 aryl group, a fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 1 -C 20 alkyl group, a C 2 -C 20 alkenyl group, a C 2 -C 20 alkynyl group, a C 1 -C 20 alkoxyl group, a C 6 -C 30 aryloxy group, and -L a -N(R a )(R b ),
R′ and R″ of C(R′)(R″) may optionally be linked to each other to form a ring, and adjacent R's of C(R′) may optionally be linked to each other to form a ring,
Ar a is selected from the group consisting of a C 6 -C 20 aryl group, a fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, and a combination thereof,
L a is selected from the group consisting of a single bond, a C 6 -C 20 arylene group, a fluorenylene group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, and a combination thereof,
R a and R b are each independently selected from the group consisting of a C 6 -C 20 aryl group, a fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, and a combination thereof.
3. The organic electric element of claim 1 , wherein Formula 1 is represented by one of Formula 1-A to Formula 1-G:
wherein, Ar 1 , Ar 2 , L 1 ˜L 3 , X 1 , R 1 and a are the same as defined in claim 1 ,
X 2 and X 3 are each independently O or S,
R 4 and R 5 are each independently selected from the group consisting of hydrogen, deuterium, halogen, a cyano group, a nitro group, a C 6 -C 20 aryl group, a fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 1 -C 20 alkyl group, a C 2 -C 20 alkenyl group, a C 2 -C 20 alkynyl group, a C 1 -C 20 alkoxyl group, and a C 6 -C 30 aryloxy group, and adjacent groups may optionally be linked to each other to form a ring,
d′ is an integer of 0 to 7, e′ is an integer of 0 to 6, and where they are each an integer of 2 or more, a plurality of R 4 s or a plurality of R 5 s are the same as or different from each other.
4. The organic electric element of claim 1 , wherein Formula 2 is represented by one of Formula 2-A to Formula 2-L:
wherein, Ar 5 , Ar 6 , and L 4 ˜L 6 are the same as defined in claim 1 ,
Y 1 to Y 3 are each independently O, S, or C(R′)(R″),
R 11 to R 16 , R′ and R″ are each independently selected from the group consisting of hydrogen, deuterium, halogen, a silane group substituted or unsubstituted with C 1 -C 20 alkyl group or C 6 -C 20 aryl group, 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, and -L′-N(R a )(R b ), and adjacent groups may optionally be linked to each other to form a ring,
b is an integer of 0 to 4, and where b is an integer of 2 or more, a plurality of R 11 s, a plurality of R 13 s, or a plurality of R 15 s are the same as or different from each other,
c is an integer of 0 to 3, and where c is an integer of 2 or more, a plurality of R 12 s, a plurality of R 14 s, or a plurality of R 16 s are the same as or different from each other,
L′, R a and R b are the same as defined in claim 1 .
5. The organic electric element of claim 1 , wherein the compound represented by Formula 1 is one of the following compounds:
6. The organic electric element of claim 1 , wherein the compound represented by Formula 2 is one of the following compounds:
7. The organic electric element of claim 1 , further comprising a layer for improving luminous efficiency formed on one side of the first electrode or one side of the second electrode, the side not facing the organic material layer.
8. The organic electric element of claim 1 , wherein the organic material layer comprises two or more stacks, the stacks comprising a hole transport layer, a light emitting layer, and an electron transport layer in sequence formed on the anode.
9. The organic electric element of claim 8 , wherein the organic material layer further comprises a charge generation layer formed between the two or more stacks.
10. An electronic device comprising a display device and a control unit for driving the display device, wherein the display device comprises the organic electric element of claim 1 .
11. The electronic device of claim 10 , wherein the organic electric element is selected from the group consisting of an organic light emitting diode, an organic solar cell, an organic photo conductor, an organic transistor, an element for monochromatic illumination and a quantum dot display.
12. A compound of Formula 1:
wherein,
X 1 is O or S,
Ar 1 and Ar 2 are each independently selected from the group consisting of a C 6 -C 14 aryl group, a fluorenyl group, a C 6 -C 13 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, a C 1 -C 30 alkyl group, a C 2 -C 30 alkenyl group, a C 2 -C 30 alkynyl group, a C 1 -C 30 alkoxyl group and a C 6 -C 30 aryloxy group,
L 1 to L 3 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
R 1 is 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 30 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, a C 6 -C 30 aryloxy group, and -L′-N(R a )(R b ), and adjacent R 1 s are not linked to each other to form a ring,
a is an integer of 0 to 9, and where a is an integer of 2 or more, a plurality of R 1 s are the same as or different from each other,
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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
R a and R b 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
Ar 1 to Ar 2 , L 1 to L 3 , R 1 , L′, R a , and R b and may be each optionally substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted with C 1 -C 20 alkyl group or C 6 -C 20 aryl 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 7 -C 20 arylalkyl group and a C 8 -C 20 arylalkenyl group.
13. The compound of claim 12 , wherein Formula 1 is represented by Formula 3:
wherein, X 11 is O or S, L 11 and L 12 are each independently a single bond or a C 6 -C 30 arylene group, and Ar 11 and Ar 12 are each independently a C 6 -C 14 aryl group.
14. The compound of claim 13 , wherein L 11 and L 12 are each independently a single bond or a C 6 -C 15 arylene group, and Ar 11 and Ar 12 are each independently a C 6 -C 14 aryl group.
15. The compound of claim 13 , wherein Formula 3 is represented by one of Formulas 3-1,3-A or 3-B:
wherein Ar 11 , Ar 12 , L 11 and L 12 are the same as defined in claim 13 , R 0 is defined to be the same as Ar 11 , z is an integer of 0 to 5, and where z is an integer of 2 or more, a plurality of R 0 s are the same as or different from each other.
16. The compound of claim 13 , wherein the compound represented by Formula 3 is one of the following compounds:
17. 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 the compound represented by Formula 3 of claim 13 .
18. The organic electric element of claim 17 , wherein the organic material layer comprises a light emitting layer or an emission-auxiliary layer, and the compound represented by Formula 3 is comprised in the light emitting layer or the emission-auxiliary layer.
19. The organic electric element of claim 17 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the compound represented by Formula 3 and a compound represented by Formula 4:
wherein,
Y 1 is O, S or C(R′)(R″),
Ar 5 and Ar 6 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, a C 1 -C 30 alkyl group, a C 2 -C 30 alkenyl group, a C 2 -C 30 alkynyl group, a C 1 -C 30 alkoxyl group and a C 6 -C 30 aryloxy group,
L 4 to L 6 , and L 21 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring and a combination thereof,
R 11 , R 12 , R 21 , R 22 , R′ and R″ are each independently selected from the group consisting of hydrogen, deuterium, halogen, a silane group substituted or unsubstituted with C 1 -C 20 alkyl group or C 6 -C 20 aryl group, a cyano group, a nitro group, a C 1 -C 20 alkoxyl group, a C 6 -C 30 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring and -L′-N(R a )(R b ), and adjacent groups may optionally be linked to each other to form a ring,
c and d are each an integer of 0 to 3, and where c or d is an integer of 2 or more, a plurality of R 12 s are the same as or different from each other,
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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
R a and R b 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 comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 60 aliphatic ring, and a combination thereof,
Ar 5 , Ar 6 , L 4 to L 6 , L 21 , R 11 , R 12 , R 21 , R 22 , R′, R″, L′, R a , R b and the ring formed by adjacent groups may be each optionally substituted with one or more substituents selected from the group consisting of deuterium, halogen, a silane group substituted or unsubstituted with a C 1 -C 20 alkyl group or a C 6 -C 20 aryl 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 fluorenyl group, a C 2 -C 20 heterocyclic group comprising at least one heteroatom selected from the group consisting of O, N, S, Si and P, a C 3 -C 20 aliphatic ring, a C 7 -C 20 arylalkyl group and a C 8 -C 20 arylalkenyl group.
20. The organic electric element of claim 19 , wherein the compound of Formula 4 is represented by one of Formulas 4-1 to 4-9:
wherein, Y 1 , Ar 5 , Ar 6 , L 4 to L 6 , L 21 , R 11 , R 12 , R 21 , R 22 , c and d are the same as defined in claim 19 , Y 2 is O or S, and R 23 is defined to be the same as R 11 .
21. The organic electric element of claim 19 , wherein the organic material layer comprises an emission-auxiliary layer, and the emission-auxiliary layer comprises the compound represented by Formula 4.
22. The organic electric element of claim 19 , wherein the compound represented by Formula 4 is one of the following compounds:
23. The organic electric element of claim 17 , further comprising a layer for improving luminous efficiency formed on one side of the first electrode or one side of the second electrode, the side not facing the organic material layer.
24. The organic electric element of claim 17 , wherein the organic material layer comprises two or more stacks, the stacks comprising a hole transport layer, a light emitting layer, and an electron transport layer in sequence formed on the anode.
25. The organic electric element of claim 24 , wherein the organic material layer further comprises a charge generation layer formed between the two or more stacks.
26. An electronic device comprising a display device and a control unit for driving the display device, wherein the display device comprises the organic electric element of claim 17 .
27. The electronic device of claim 26 , wherein the organic electric element is selected from the group consisting of an organic light emitting diode, an organic solar cell, an organic photo conductor, an organic transistor, an element for monochromatic illumination and a quantum dot display.