Compound for organic light-emitting device and organic light-emitting device including same
The present invention relates to an anthracene derivative selected from among compounds represented by Chemical Formulas A-1, A-2, B-1, and B-2, and an organic light-emitting device including the same. Structures of individual moieties in the anthracene derivative are as defined in the specification.
1. An anthracene derivative, selected from compounds represented by the following Chemical Formula A-1, A-2, B-1, and B-2:
wherein,
in Chemical Formula A-1 and Chemical Formula B-1,
R1 to R8, and R11 to R13 are each hydrogen atom or deuterium,
R14 to R23, which are same or different, are each independently any one selected from among a hydrogen, a deuterium, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl of 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl of 2 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted cycloalkenyl of 5 to 30 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryl thioxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkyl amine of 1 to 30 carbon atoms, a substituted or unsubstituted aryl amine of 6 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, heteroaryl of 2 to 50 carbon atoms bearing 0, N or S as a heteroatom, a cyano, a nitro, a halogen, a substituted or unsubstituted silyl of 1 to 30 carbon atoms, a substituted or unsubstituted germanium of 1 to 30 carbon atoms, a substituted or unsubstituted boron of 1 to 30 carbon atoms, a substituted or unsubstituted aluminum of 1 to 30 carbon atoms, a carbonyl, a phosphoryl, an amino, a thiol, a hydroxy, a selenium, a tellurium, an amide, an ether, and an ester,
wherein, the anthracene derivative has the structure of -(L)m-(B)n for at least one of R15 to R17,
L denotes a linker and is a single bond or a deuterium substituted or unsubstituted arylene of 6 to 60 carbon atoms,
B is a deuterium substituted or unsubstituted aryl of 6 to 60 carbon atoms,
m is an integer of 1 to 2, with a proviso that when m is 2, the corresponding L's may be same or different, and
n is an integer of 1 to 5, with a proviso that when n is 2 or greater, the corresponding B's may be same or different,
in Chemical Formula A-2 and Chemical Formula B-2,
R1 to R8, and R12 to R13 are each hydrogen atom or deuterium,
R11, R14 to R23, which are same or different, are each independently any one selected from among a hydrogen, a deuterium, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl of 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl of 2 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted cycloalkenyl of 5 to 30 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryl thioxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkyl amine of 1 to 30 carbon atoms, a substituted or unsubstituted aryl amine of 6 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, heteroaryl of 2 to 50 carbon atoms bearing 0, N or S as a heteroatom, a cyano, a nitro, a halogen, a substituted or unsubstituted silyl of 1 to 30 carbon atoms, a substituted or unsubstituted germanium of 1 to 30 carbon atoms, a substituted or unsubstituted boron of 1 to 30 carbon atoms, a substituted or unsubstituted aluminum of 1 to 30 carbon atoms, a carbonyl, a phosphoryl, an amino, a thiol, a hydroxy, a selenium, a tellurium, an amide, an ether, and an ester,
wherein, the anthracene derivative has the structure of -(L)m-(B)n for at least one of R11 and R15 to R17,
L denotes a linker and is a single bond or a deuterium substituted or unsubstituted arylene of 6 to 60 carbon atoms,
B is a deuterium substituted or unsubstituted aryl of 6 to 60 carbon atoms,
m is an integer of 1 to 2, with a proviso that when m is 2, the corresponding L's may be same or different, and
n is an integer of 1 to 5, with a proviso that when n is 2 or greater, the corresponding B's may be same or different,
in Chemical Formula A-1, Chemical Formula A-2, Chemical Formula B-1, and Chemical Formula B-2,
the substituent Ar1 is a substituted or unsubstituted aryl of 6 to 50 carbon atoms, or a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms;
two adjacent substituents of R11 to R13 in Chemical Formulas B-1 and B-2 are respective single bonds involved in forming a 5-membered ring as a fused ring with the carbon atom to which the substituents R22 and R23 in Structural Formula Q are both bonded; and
R22 and R23 may be connected to each other to form a ring,
wherein the term ‘substituted’ in the expression “substituted or unsubstituted” means having at least one substituent selected from the group consisting of a deuterium, a cyano, a halogen, a hydroxy, a nitro, an alkyl of 1 to 24 carbon atoms, a halogenated alkyl of 1 to 24 carbon atoms, an alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a heteroalkyl of 1 to 24 carbon atoms, an aryl of 6 to 24 carbon atoms, an arylalkyl of 7 to 24 carbon atoms, a heteroaryl of 2 to 24 carbon atoms or a heteroarylalkyl of 2 to 24 carbon atoms, an alkoxy of 1 to 24 carbon atoms, an alkylamino of 1 to 24 carbon atoms, an arylamino of 6 to 24 carbon atoms, a heteroarylamino of 1 to 24 carbon atoms, an alkylsilyl of 1 to 24 carbon atoms, an arylsilyl of 6 to 24 carbon atoms, and an aryloxy of 6 to 24 carbon atoms.
2. The anthracene derivative of claim 1 , wherein the substituents R22 and R23 are same or different and are each be independently a substituted or unsubstituted aryl of 6 to 24 carbon atoms.
3. The anthracene derivative of claim 1 , wherein Ar1 is a substituted or unsubstituted aryl of 6 to 50 carbon atoms.
4. The anthracene derivative of claim 1 , wherein Ar1 is a substituted or unsubstituted aryl of 6 to 18 carbon atoms, or a substituted or unsubstituted heteroaryl of 3 to 18 carbon atoms.
5. The anthracene derivative of claim 1 , wherein Ar1 is a substituent represented by the following Structural Formula C:
wherein the substituents R21 to R25, which are same or different, are each independently any one selected from among a hydrogen, a deuterium, a halogen, a cyano, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 6 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, and a substituted or unsubstituted silyl of 1 to 30 carbon atoms, and
‘*’ refers to a bonding site to the anthracene moiety.
6. The anthracene derivative of claim 1 , wherein the anthracene derivative has the structure of -(L)m-(B)n as only one of the substituents R15 to R17 in Chemical Formula A-1 or B-1 and as only one of the substituents R11 and R15 to R17 in Chemical Formula A-2 or B-2.
7. The anthracene derivative of claim 1 , wherein B is any one selected from among a phenyl, a biphenyl, a naphthyl, and a phenanthrene.
8. The anthracene derivative of claim 1 , wherein the linker L is a single bond or any one selected from among any one selected from among the following Structural Formulas 1 to 3:
wherein each of the unsubstituted carbon atoms of the aromatic ring moiety is bound with a hydrogen atom or a deuterium atom.
9. The anthracene derivative of claim 5 , wherein the substituents R21 to R25 are each hydrogen or deuterium.
10. The anthracene derivative of claim 1 , wherein the anthracene derivative is any one selected from among the following Compounds 21, 39, 82 to 141, 144, 148 to 156:
11. An organic light-emitting device, including:
a first electrode;
a second electrode facing the first electrode; and
an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes the anthracene derivative of claim 1 .
12. The organic light-emitting device of claim 11 , wherein the organic layer includes at least one of a hole injection layer, a hole transport layer, a functional layer capable of both hole injection and hole transport, an electron transport layer, and an electron injection layer.
13. The organic light-emitting device of claim 12 , wherein the organic layer disposed between the first and the second electrode is a light-emitting layer composed of a host and a dopant, the anthracene derivative used in the light-emitting layer serving as a host.
14. The organic light-emitting device of claim 12 , wherein at least one selected from the layers is formed using a single-molecule deposition process or a solution process.
15. The organic light-emitting device of claim 11 , wherein the organic light-emitting device is used for a device selected from among a flat display device, a flexible display device, a monochrome or yellow to white flat illumination device, and a monochrome or yellow to white flexible illumination device.
16. An organic light-emitting device, including an anode, a hole transport layer, a light-emitting layer including both a host and a dopant, an electron density control layer containing at least one of the anthracene derivatives selected from compounds represented by the following Chemical Formula A-1, A-2, B-1, and B-2, an electron transport layer, and a cathode in that order,
wherein,
R1 to R8, and R11 to R23, which may be same or different, are each independently any one selected from among a hydrogen, a deuterium, a substituted or unsubstituted alkyl of 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl of 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl of 2 to 30 carbon atoms, a substituted or unsubstituted cycloalkyl of 3 to 30 carbon atoms, a substituted or unsubstituted cycloalkenyl of 5 to 30 carbon atoms, a substituted or unsubstituted alkoxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryloxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkylthioxy of 1 to 30 carbon atoms, a substituted or unsubstituted aryl thioxy of 6 to 30 carbon atoms, a substituted or unsubstituted alkyl amine of 1 to 30 carbon atoms, a substituted or unsubstituted aryl amine of 6 to 30 carbon atoms, a substituted or unsubstituted aryl of 6 to 50 carbon atoms, heteroaryl of 2 to 50 carbon atoms bearing 0, N or S as a heteroatom, a cyano, a nitro, a halogen, a substituted or unsubstituted silyl of 1 to 30 carbon atoms, a substituted or unsubstituted germanium of 1 to 30 carbon atoms, a substituted or unsubstituted boron of 1 to 30 carbon atoms, a substituted or unsubstituted aluminum of 1 to 30 carbon atoms, a carbonyl, a phosphoryl, an amino, a thiol, a hydroxy, a selenium, a tellurium, an amide, an ether, and an ester,
the substituent Ar1 is a substituted or unsubstituted aryl of 6 to 50 carbon atoms, or a substituted or unsubstituted heteroaryl of 2 to 50 carbon atoms;
two adjacent substituents of R11 to R13 in Chemical Formulas B-1 and B-2 are respective single bonds involved in forming a 5-membered ring as a fused ring with the carbon atom to which the substituents R22 and R23 in Structural Formula Q are both bonded; and
R22 and R23 may be connected to each other to form a ring,
wherein the term ‘substituted in the expression “substituted or unsubstituted” means having at least one substituent selected from the group consisting of a deuterium, a cyano, a halogen, a hydroxy, a nitro, an alkyl of 1 to 24 carbon atoms, a halogenated alkyl of 1 to 24 carbon atoms, an alkenyl of 2 to 24 carbon atoms, an alkynyl of 2 to 24 carbon atoms, a heteroalkyl of 1 to 24 carbon atoms, an aryl of 6 to 24 carbon atoms, an arylalkyl of 7 to 24 carbon atoms, a heteroaryl of 2 to 24 carbon atoms or a heteroarylalkyl of 2 to 24 carbon atoms, an alkoxy of 1 to 24 carbon atoms, an alkylamino of 1 to 24 carbon atoms, an arylamino of 6 to 24 carbon atoms, a heteroarylamino of 1 to 24 carbon atoms, an alkylsilyl of 1 to 24 carbon atoms, an arylsilyl of 6 to 24 carbon atoms, and an aryloxy of 6 to 24 carbon atoms.
17. The organic light-emitting device of claim 16 , further including a hole injection layer between the anode and the hole transport layer, and an electron injection layer between the electron transport layer and the cathode.
18. The organic light-emitting device of claim 16 , wherein the anthracene derivative in the electron density control layer is identical to or larger than a material in the electron transport layer in terms of electron mobility.
19. The organic light-emitting device of claim 16 , wherein the affinity A ed (eV) of the electron density control layer falls between the affinity A h (eV) of the host in the light-emitting layer and the affinity A e (eV) of the electron transport layer (A h ≥A ed ≥A e ).
20. The organic light-emitting device of claim 16 , further including a light-emitting layer, made of a blue light-emitting material, a green light-emitting material, or a red light-emitting material, all materials emitting light in a wavelength range of 380 nm to 800 nm, wherein the blue light-emitting material, the green light-emitting material, or the red light-emitting material is a fluorescent or phosphorescent material.