Polycyclic aromatic derivative compound and organic light-emitting device using same
The present invention relates to a polycyclic aromatic derivative compound and an organic light-emitting device having high efficiency and long lifespan, the device applying the compound in various organic layers so as to remarkably improve luminous efficiency. According to the invention, an organic light-emitting device having high efficiency and long lifespan and having remarkably improved luminous efficiency can be implemented, and thus can be industrially useful in various display devices and lighting devices.
1 . A compound represented by Formula A-1 or A-2:
wherein Q 1 and Q 2 are identical to or different from each other and are each independently a substituted or unsubstituted C 6 -C 50 aromatic hydrocarbon ring, a substituted or unsubstituted C 2 -C 50 aromatic heterocyclic ring or a substituted or unsubstituted C 3 -C 30 mixed aliphatic-aromatic ring, X is selected from B, P, P═O, and P═S, Y 1 and Y 2 are identical to or different from each other and are each independently selected from N-R 8 , CR 9 R 10 , O, S, Se, and SiR 11 R 12 , V is selected from N and P, and R 1 to R 12 are identical to or different from each other and are each independently selected from hydrogen, deuterium, substituted or unsubstituted C 1 -C 30 alkyl, substituted or unsubstituted C 6 -C 50 aryl, substituted or unsubstituted C 3 -C 30 cycloalkyl, substituted or unsubstituted C 2 -C 50 heteroaryl, substituted or unsubstituted C 1 -C 30 alkoxy, substituted or unsubstituted C 6 -C 30 aryloxy, substituted or unsubstituted C 1 -C 30 alkylthioxy, substituted or unsubstituted C 5 -C 30 arylthioxy, substituted or unsubstituted C 1 -C 30 alkylamine, substituted or unsubstituted C 5 -C 30 arylamine, substituted or unsubstituted C 1 -C 30 alkylsilyl, substituted or unsubstituted C 5 -C 30 arylsilyl, nitro, cyano, and halogen, with the proviso that R 2 and R 3 are optionally linked to each other to form a monocyclic or polycyclic ring, R 7 is optionally bonded to the adjacent ring Q 1 to form an alicyclic or aromatic monocyclic or polycyclic ring, each of R 8 to R 12 is optionally bonded to one or more of the rings Q 1 and Q 2 to form an alicyclic or aromatic monocyclic or polycyclic ring, R 5 and R 6 are optionally linked to each other to form an alicyclic or aromatic monocyclic or polycyclic ring, R 9 and R 10 are optionally linked to each other to form an alicyclic or aromatic monocyclic or polycyclic ring, and R 11 and R 12 are optionally linked to each other to form an alicyclic or aromatic monocyclic or polycyclic ring.
2 . The compound according to claim 1 , wherein the compound of Formula A-1 is represented by Formula A-3:
wherein the moieties Z are identical to or different from each other and are each independently CR or N, the groups R are identical to or different from each other and are each independently selected from hydrogen, deuterium, substituted or unsubstituted C 1 -C 30 alkyl, substituted or unsubstituted C 6 -C 50 aryl, substituted or unsubstituted C 3 -C 30 cycloalkyl, substituted or unsubstituted C 2 -C 50 heteroaryl, substituted or unsubstituted C 1 -C 30 alkoxy, substituted or unsubstituted C 6 -C 30 aryloxy, substituted or unsubstituted C 1 -C 30 alkylthioxy, substituted or unsubstituted C 5 -C 30 arylthioxy, substituted or unsubstituted C 1 -C 30 alkylamine, substituted or unsubstituted C 5 -C 30 arylamine, substituted or unsubstituted C 1 -C 30 alkylsilyl, substituted or unsubstituted C 5 -C 30 arylsilyl, nitro, cyano, and halogen, with the proviso that the groups R are optionally bonded to each other or are each independently optionally linked to an adjacent substituent to form an alicyclic or aromatic monocyclic or polycyclic ring and one or more of the carbon atoms in the alicyclic or aromatic monocyclic or polycyclic ring are optionally replaced with heteroatoms selected from N, S, and O, and X, Y 1 , Y 2 , V, and R 1 to R 7 are as defined in Formulae A-1 and A-2, and
the compound of Formula A-2 is represented by Formula A-4:
wherein Z and R are as defined in Formula A-3 and X, Y 1 , Y 2 , V, and R 1 to R 7 are as defined in Formulae A-1 and A-2.
3 . The compound according to claim 1 , wherein the compound represented by Formula A-1 or A-2 is selected from the following compounds 1 to 63:
4 . An organic electroluminescent device comprising a first electrode, a second electrode, and one or more organic layers interposed between the first and second electrodes wherein one of the organic layers comprises the compound represented by Formula A-1 or A-2 according to claim 1 .
5 . The organic electroluminescent device according to claim 4 , wherein the organic layers comprise an electron injecting layer, an electron transport layer, a hole injecting layer, a hole transport layer, an electron blocking layer, a hole blocking layer, and/or a light emitting layer, at least one of which comprises the compound represented by Formula A-1 or A-2.
6 . The organic electroluminescent device according to claim 5 , wherein the light emitting layer comprises, as a host compound, an anthracene derivative represented by Formula C:
wherein R 21 to R 28 are identical to or different from each other and are as defined for R 1 to R 12 in Formula A-1 or A-2 according to claim 1 , Ar 9 and Ar 10 are identical to or different from each other and are each independently selected from hydrogen, deuterium, substituted or unsubstituted C 1 -C 30 alkyl, substituted or unsubstituted C 6 -C 50 aryl, substituted or unsubstituted C 2 -C 30 alkenyl, substituted or unsubstituted C 2 -C 20 alkynyl, substituted or unsubstituted C 3 -C 30 cycloalkyl, substituted or unsubstituted C 5 -C 30 cycloalkenyl, substituted or unsubstituted C 2 -C 50 heteroaryl, substituted or unsubstituted C 2 -C 30 heterocycloalkyl, substituted or unsubstituted C 1 -C 30 alkoxy, substituted or unsubstituted C 6 -C 30 aryloxy, substituted or unsubstituted C 1 -C 30 alkylthioxy, substituted or unsubstituted C 6 -C 30 arylthioxy, substituted or unsubstituted C 1 -C 30 alkylamine, substituted or unsubstituted C 6 -C 30 arylamine, substituted or unsubstituted C 1 -C 30 alkylsilyl, and substituted or unsubstituted C 6 -C 30 arylsilyl, L 13 is a single bond or is selected from substituted or unsubstituted C 6 -C 20 arylene and substituted or unsubstituted C 2 -C 20 heteroarylene, and k is an integer from 1 to 3, provided that when k is 2 or more, the linkers L 13 are identical to or different from each other.
7 . The organic electroluminescent device according to claim 6 , wherein Ar 9 in Formula C is represented by Formula C-1:
wherein R 31 to R 35 are identical to or different from each other and are as defined for R 1 to R 12 in Formula A-1 or A-2 according to claim 1 and each of R 31 to R 35 is optionally bonded to an adjacent substituent to form a saturated or unsaturated ring.
8 . The organic electroluminescent device according to claim 6 , wherein the anthracene derivative of Formula C is selected from the compounds represented by Formulae C1 to C48:
9 . The organic electroluminescent device according to claim 5 , wherein one or more of the layers are formed by a deposition or solution process.
10 . The organic electroluminescent device according to claim 4 , wherein the organic electroluminescent device is used in a display or lighting system selected from flat panel displays, flexible displays, monochromatic flat panel lighting systems, white flat panel lighting systems, flexible monochromatic lighting systems, and flexible white lighting systems.