Organic electroluminescent device material, organic electroluminescent device, display and illuminating device
View Patent ↗Disclosed is a novel organic EL device material. Also disclosed are an organic EL device, an illuminating device and a display each having high emission efficiency and long emission lifetime, which are obtained by employing the organic EL device material.
1. An organic electroluminescent device comprising a substrate, and provided thereon, an anode and a cathode, at least one organic layer being provided between the anode and the cathode, wherein the at least one organic layer contains a compound represented by formula (1),
wherein R 1 represents a hydrogen atom, an alkyl group, an cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylthio group, a cycloalkylthio group, an arylthio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, an acyl group, an acyloxy group, an amido group, a carbamoyl group, a ureido group, a sulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an amino group, a cyano group, an nitro group, a hydroxyl group, a mercapto group or a silyl group; Ar represents an aromatic hydrocarbon group or an aromatic heterocyclic group; and n 1 represents an integer of from 0 to 4.
2. The organic electroluminescent device of claim 1 , wherein Ar in formula (1) represents an aromatic heterocyclic group.
3. The organic electroluminescent device of claim 1 , wherein the organic layer comprises at least one electron inhibiting layer and the electron inhibiting layer contains a compound represented by formula (1).
4. The organic electroluminescent device of claim 1 , wherein the organic layer comprises at least one hole inhibiting layer and the hole inhibiting layer contains a compound represented by formula (1).
5. The organic electroluminescent device of claim 1 , wherein the organic electroluminescent device emits a white light.
6. A display comprising the organic electroluminescent device of claim 1 .
7. An organic electroluminescent device comprising the compound represented by formula (1) of claim 1 .
8. The organic electroluminescent device material of claim 1 , wherein in formula (1), R 1 represents a hydrogen atom or an aromatic hydrocarbon group.
9. The organic electroluminescent device of claim 1 , wherein the compound represented by formula (1) is a compound represented by formula (2),
wherein R 1 represents a hydrogen atom, an alkyl group, an cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylthio group, a cycloalkylthio group, an arylthio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, an acyl group, an aryloxy group, an amido group, a carbamoyl group, a ureido group, a sulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an amino group, a cyano group, an nitro group, a hydroxyl group, a mercapto group or a silyl group; X represents O, S or —N(Ra)— (in which Ra represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, or a cycloalkyl group); R 2 through R 5 independently represent a hydrogen atom or a substituent; n 1 , n 3 and n 5 independently represent an integer of from 0 to 4; and n 2 and n 4 independently represent an integer of from 0 to 3.
10. The organic electroluminescent device of claim 9 , wherein X in formula (2) represents O or S.
11. The organic electroluminescent device of claim 9 , wherein the organic layer comprises at least one light emission layer comprises at least one light emission layer and the light emission layer contains a compound represented by formula (2).
12. The organic electroluminescent device of claim 9 , wherein the organic layer comprises at least one electron inhibiting layer and the electron inhibiting layer contains a compound represented by formula (2).
13. The organic electroluminescent device of claim 9 , wherein the organic layer comprises at least one hold inhibiting layer and the hole inhibiting layer contains a compound represented by formula (2).
14. An organic electroluminescent device material a compound represented by formula (2) of claim 9 .
15. The organic electroluminescent device of claim 1 , wherein the organic layer comprises at least one light emission layer and the light emission layer contains a compound represented by formula (1).
16. The organic electroluminescent device of claim 15 , wherein the light emission layer contains a phosphorescence emission dopant.
17. The organic electroluminescent device of claim 16 , wherein the phosphorescence emission dopant has a 0-0 band of not more than 485 nm.
18. An illuminating device comprising the organic electroluminescent device of claim 1 .
19. A display comprising the illuminating device of claim 18 and a liquid crystal device as a displaying means.