摘要:
A compound represented by the following formula (1):wherein in the formula (1), Ar1 and Ar2 are independently a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted alkyl group; X1 to X4 and X13 to X16 are independently CR1, CH or N; one of X5 to X8 is a carbon atom bonding to one of X9 to X12, and at least one of X5 to X8 that is adjacent to the carbon atom bonding to one of X9 to X12 is CR2; one of X9 to X12 is a carbon atom bonding to one of X5 to X8, and X9 to X12 that is adjacent to the carbon atom bonding to one of X5 to X8 is CH or N; and the remaining X5 to X8 and the remaining X9 to X12 are CR1, CH or N.
摘要:
An organic EL device material includes at least a unit including 3,5-biscarbazolylphenyl group, a unit including 4-carbazolylphenyl group, and a compound including a unit including a nitrogen-containing aromatic heterocyclic ring bonding the unit including 3,5-biscarbazolylphenyl group and the unit including 4-carbazolylphenyl group.
摘要:
An organic electroluminescent device (1) including an anode (2), a cathode (6), and at least a first layer (3), a second layer (4), and a third layer (5) provided between the anode (2) and the cathode (6) in that order from the anode side. At least one of the first to third layers (3), (4), and (5) includes a phosphorescent compound. At least one of the first to third layers (3), (4), and (5) is an emitting layer. At least three compounds respectively forming the first layer (3), the second layer (4), and the third layer (5) other than the phosphorescent compound are compounds of the following formula (1). wherein R1 to R7 each represent a hydrogen atom or a substituent, provided that adjacent substituents may form a ring.
摘要:
A material for organic electroluminescence devices for use as a host material in combination with at least one phosphorescent metal complex contains a compound represented by formula 1: wherein R1 to R10 are each independently hydrogen atom, halogen atom, alkyl group having 1 to 40 carbon atoms, cycloalkyl group having 3 to 15 carbon atoms, heterocyclic group having 3 to 20 carbon atoms which is optionally substituted, alkoxy group having 1 to 40 carbon atoms, non-condensed aryl group having 6 to 40 carbon atoms, condensed aryl group having 10 to 18 carbon atoms, aryloxy group having 6 to 20 carbon atoms, aralkyl group having 7 to 20 carbon atoms, arylamino group having 6 to 40 carbon atoms, alkylamino group having 1 to 40 carbon atoms, aralkylamino group having 7 to 60 carbon atoms, arylcarbonyl group having 7 to 40 carbon atoms, alkyl halide group having 1 to 40 carbon atoms, or cyano group, R8 and R9 being optionally bonded to each other to form a ring structure and each of R1 to R10 being optionally substituted and having no polymerizable functional group at its terminal end; and X is sulfur atom or oxygen atom.
摘要:
A material for organic electroluminescent devices including a 2,7-disubstituted naphthalene ring in its molecule and an organic electroluminescent device including an organic thin film layer having one or more layers between a cathode and an anode. An organic electroluminescence device having the organic thin film layer which includes the material for organic electroluminescent devices and at least one kind of phosphorescent emitting materials has long lifetime and high current efficiency.
摘要:
An organic electroluminescent device (1) including an anode (2), a cathode (6), and at least a first layer (3), a second layer (4), and a third layer (5) provided between the anode (2) and the cathode (6) in that order from the anode side. At least one of the first to third layers (3), (4), and (5) includes a phosphorescent compound. At least one of the first to third layers (3), (4), and (5) is an emitting layer. At least three compounds respectively forming the first layer (3), the second layer (4), and the third layer (5) other than the phosphorescent compound are compounds of the following formula (1). wherein R1 to R7 each represent a hydrogen atom or a substituent, provided that adjacent substituents may form a ring.
摘要:
A phenanthrene derivative is represented by a formula (1) below. In the formula (1), Ar1 and Ar2 each represent an aromatic hydrocarbon ring group having 6 to 18 carbon atoms for forming the ring. The aromatic hydrocarbon ring group contains none of anthracene skeleton, pyrene skeleton, aceanthrylene skeleton and naphthacene skeleton. R1 represents a substituent, the number of which may be 0, 1 or more. R1 may be bonded in any position of the phenanthrene skeleton. n and m each represent an integer of 1 to 3. k represents an integer of 0 to 8.
摘要:
An organic electroluminescence device including: an anode 10 and a cathode 20; two or more organic layers 30, 40 and 50 including an emitting layer 40 between the anode 10 and the cathode 20, the organic layers 30, 40 and 50 including, between the anode 10 and the emitting layer 40, a hole-injecting layer or a hole-transporting layer 30 which contains a thiophene derivative having a molecular weight of 1,200 or less; and an interfacial barrier reduction layer 60 being between two adjacent organic layers 30 and 40 selected from the organic layers 30, 40 and 50, the interfacial barrier reduction layer 60 containing a mixture of at least one material contained in one of the two adjacent organic layers 30 and 40 and at least one material contained in the other of the two adjacent organic layers 30 and 40 at a molar ratio of 1:1 to 1:4.
摘要:
A material for organic electroluminescence device with specific structure having poor symmetry. An an organic electroluminescence device comprising a cathode, an anode and an organic thin film layer which is sandwiched between the cathode and the anode and comprises at least one layer, wherein at least one layer in the organic thin film layer contains a material for the organic electroluminescence device described above. An organic electroluminescence device with excellent efficiency of light emission, without pixel defects and which is superior in heat resistance is obtained.
摘要:
A compound represented by the following formula (1): wherein in the formula (1), Ar1 and Ar2 are independently a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, or a substituted or unsubstituted alkyl group; X1 to X4 and X13 to X16 are independently CR1, CH or N; one of X5 to X8 is a carbon atom bonding to one of X9 to X12, and at least one of X5 to X8 that is adjacent to the carbon atom bonding to one of X9 to X12 is CR2; one of X9 to X12 is a carbon atom bonding to one of X5 to X8, and X9 to X12 that is adjacent to the carbon atom bonding to one of X5 to X8 is CH or N; and the remaining X5 to X8 and the remaining X9 to X12 are CR1, CH or N.