Organic metal compound and organic light-emitting device employing the same
Organic metal compounds and organic electroluminescence devices employing the same are provided. The organic metal compound has a chemical structure represented below: wherein R 1 , R 2 , R 3 , R 4 , and R 5 are independent and can be hydrogen, halogen, C 1-8 alkyl or C 1-8 alkoxy; L can be acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate, or N, N′-diisopropyl-diisopropyl-guanidinate.
1. An organic metal compound, having a structure as defined by Formula (I):
wherein, R 1 , R 2 , R 3 , R 4 , and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
2. The organic metal compound as claimed in claim 1 , wherein the halogen is fluorine.
3. The organic metal compound as claimed in claim 1 , wherein the C 1-8 alkyl group is tert-butyl group.
4. The organic metal compound as claimed in claim 1 , wherein the organic metal compound has a structure as defined by Formula (II):
wherein, R 1 and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group, R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
5. The organic metal compound as claimed in claim 4 , wherein the halogen is fluorine.
6. The organic metal compound as claimed in claim 4 , wherein the C 1-8 alkyl group is tert-butyl group.
7. The organic metal compound as claimed in claim 1 , wherein the organic metal compound has a structure as defined by Formula (III):
wherein, R 1 is hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group, R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
8. The organic metal compound as claimed in claim 7 , wherein the halogen is fluorine.
9. The organic metal compound as claimed in claim 7 , wherein the C 1-8 alkyl group is tert-butyl group.
10. An organic light-emitting device, comprising:
a pair of electrodes; and
an organic light-emitting element disposed between the electrodes, wherein the organic light-emitting element comprises an organic metal compound having a structure as defined by Formula (I):
wherein, R 1 , R 2 , R 3 , R 4 , and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
11. The organic light-emitting device as claimed in claim 10 , wherein the organic metal compound has a structure as defined by Formula (II):
wherein, R 1 and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group, R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
12. The organic light-emitting device as claimed in claim 10 , wherein the organic metal compound has a structure as defined by Formula (III):
wherein, R 1 is hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
13. The organic light-emitting device as claimed in claim 10 , wherein the halogen is fluorine.
14. The organic light-emitting device as claimed in claim 10 , wherein the C 1-8 alkyl group is tert-butyl group.
15. An organic light-emitting device, comprising:
a pair of electrodes; and
an organic light-emitting element disposed between the electrodes, wherein the organic light-emitting element comprises a light-emitting layer, and the light-emitting layer comprises a host material and a dopant material, and wherein the dopant material has a structure as defined by Formula (I):
wherein, R 1 , R 2 , R 3 , R 4 , and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
16. The organic light-emitting device as claimed in claim 15 , wherein the dopant material has a structure as defined by Formula (II):
wherein, R 1 and R 5 are independently hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group, R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
17. The organic light-emitting device as claimed in claim 15 , wherein the dopant material has a structure as defined by Formula
wherein, R 1 is hydrogen, halogen, C 1-8 alkyl group, or C 1-8 alkoxy group, R 3 is halogen, C 1-8 alkyl group, or C 1-8 alkoxy group; L is acetylacetone ligand, picolinic acid ligand, N, N′-diisopropylbenzamidinate ligand, or N, N′-diisopropyl-diisopropyl-guanidinate ligand.
18. The organic light-emitting device as claimed in claim 15 , wherein the halogen is fluorine.
19. The organic light-emitting device as claimed in claim 15 , wherein the C 1-8 alkyl group is tort-butyl group.
20. The organic light-emitting device as claimed in claim 15 , wherein the organic light-emitting element emits red light or orange light under a bias voltage.