摘要:
To attain an organic electroluminescence device having a long lifetime and high luminous efficiency, and is capable of emitting blue light having a high color purity, and an aromatic amine derivative for realizing the device, the present invention provides an aromatic amine derivative having a specific structure, and an organic electroluminescence device including an organic thin film layer composed of one or more layers including at least a light emitting layer and interposed between a cathode and an anode, in which at least one layer of the organic thin film layer contains the aromatic amine derivative alone or as a component of a mixture.
摘要:
It is an object of the present invention to provide a novel compound useful as a constituent of an organic EL element and the use of the compound permits the realization of a highly practical organic EL element whose driving voltage is substantially low and which has a low leakage current. Accordingly, the present invention herein provides a fluoranthene compound represented by the following general formula (1): A-L-B (1) wherein A and B each represent a monovalent group having a fluoranthene structure represented by the following general formula (2), provided that A is linked to the group L present in the general formula (1), at the carbon atom selected from those specified by the numerical values of 7 to 10 appearing in Formula (2) and that B is linked to the group L present in Formula (1), at the carbon atom selected from those specified by the numerical values of 1 to 6 appearing in Formula (2): wherein L is a member selected from the group consisting of a single bond, substituted or unsubstituted arylene groups each having 6 to 40 carbon atoms, divalent groups derived from substituted or unsubstituted arylamines each having 6 to 40 carbon atoms, divalent groups derived from substituted or unsubstituted heterocyclic rings each having 3 to 40 carbon atoms and substituted or unsubstituted ethenylene groups.
摘要:
A novel compound which is useful as a constitutional component for an organic EL device is provided by an aminodibenzofluorene derivative comprising (A) at least one dibenzofluorene structure and (B) at least one amino group in a molecule, a material for an organic electroluminescence (EL) device comprising the same, a light emitting material for an organic EL device, a light emitting organic solution, an organic EL device in which an organic compound layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a pair of electrodes, wherein at leas one layer in the organic compound layer described above contains at least one kind of the aminodibenzofluorene derivative described above and an equipment comprising the same. A practical organic EL device which has a low operating voltage, a long lifetime and a high current efficiency and which provides blue light emission having an excellent color purity is materialized by using the above compound.
摘要:
The present invention relates to a dibenzo[c,g]triphenylene derivative, a material for an organic EL device comprising the same, a light emitting material for an organic EL device, a light emitting organic solution, an organic EL device in which an organic compound layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a pair of electrodes, wherein at least one layer in the organic compound layer described above contains at least one kind of the dibenzo[c,g]triphenylene derivative described above and an equipment comprising the same. The present invention provides a novel compound which is useful as a constitutional component for an organic EL device, and a practical organic EL device which is excellent in a color purity and reduced in an operating voltage and which has a small leaked electric current is materialized by using the above compound.
摘要:
It is an object of the present invention to provide a novel compound useful as a constituent of an organic EL element and the use of the compound permits the realization of a highly practical organic EL element whose driving voltage is substantially low and which has a low leakage current. Accordingly, the present invention herein provides a fluoranthene compound represented by the following general formula (1): A-L-B (1) wherein A and B each represent a monovalent group having a fluoranthene structure represented by the following general formula (2), provided that A is linked to the group L present in the general formula (1), at the carbon atom selected from those specified by the numerical values of 7 to 10 appearing in Formula (2) and that B is linked to the group L present in Formula (1), at the carbon atom selected from those specified by the numerical values of 1 to 6 appearing in Formula (2): wherein L is a member selected from the group consisting of a single bond, substituted or unsubstituted arylene groups each having 6 to 40 carbon atoms, divalent groups derived from substituted or unsubstituted arylamines each having 6 to 40 carbon atoms, divalent groups derived from substituted or unsubstituted heterocyclic rings each having 3 to 40 carbon atoms and substituted or unsubstituted ethenylene groups.
摘要:
An organic EL device includes: an anode; a cathode and an organic thin-film layer provided between the anode and the cathode. The organic thin-film layer includes: a fluorescent-emitting layer containing a fluorescent host and a fluorescent dopant; and a phosphorescent-emitting layer containing a first phosphorescent host and a first phosphorescent dopant. The first phosphorescent dopant emits light by receiving exited triplet energy transferred from the fluorescent host. The fluorescent host has a substituted or unsubstituted polycyclic fused aromatic skeleton and has an exited triplet energy gap of 2.10 eV to 3.00 eV.
摘要:
An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.
摘要:
To provide an organic electroluminescence device having high emission luminance, high heat resistance, excellent high-temperature storage stability, and a long lifetime, and an aromatic amine derivative for realizing the device. Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device including: a cathode; an anode; and one or multiple organic thin film layers including at least a light-emitting layer, the one or multiple organic thin film layers being interposed between the cathode and the anode, in which at least one layer of the one or multiple organic thin film layers contains the aromatic amine compound alone or as a component of a mixture.
摘要:
A novel arylamine compound represented by the following general formula (1): wherein R1 and R2 each independently represent an alkyl group, an alkoxyl group, an aryl group, an arylalkyl group or an aryloxyl group, Ar1 to Ar4 each independently represent an aryl group or a heterocyclic group, with provisos that at least two of Ar1 to Ar4 each represent m-biphenyl group or a biphenyl group substituted with aryl groups and the others of Ar1 to Ar4 each represent biphenyl group and that, when the biphenyl group substituted with aryl groups is a biphenyl group substituted with two aryl groups, the others of Ar1 to Ar4 each represent an aryl group; and an organic electroluminescence device comprising a layer of organic compounds which comprises the novel arylamine compound. The organic electroluminescence device has a high luminance, excellent heat resistance and a long life and emits light at a high efficiency. The novel arylamine compound provides the advantageous properties to the organic electroluminescence device.
摘要:
Asymmetric pyrene derivatives having specific structure. An organic EL device comprising at least one organic thin film layer including a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises at least one kind selected from the aforementioned asymmetric pyrene derivatives singly or as a component of mixture thereof. An organic EL device exhibiting a great efficiency of light emission and having a long lifetime, and also asymmetric pyrene derivatives for realizing the organic EL device are provided.