摘要:
An organic electroluminescence device includes: an anode (3); a cathode (8); and an organic thin-film layer provided between the anode (3) and the cathode (8). The organic thin-film layer includes an emitting layer (5) and an organic layer (6) provided on the emitting layer (5) adjacently to the cathode (8). The emitting layer (5) contains: a first polycyclic fused aromatic compound having a substituted or unsubstituted polycyclic fused aromatic skeleton; and a first phosphorescent material for emitting phosphorescence. The organic layer (6) contains a second polycyclic fused aromatic compound having a substituted or unsubstituted polycyclic fused aromatic skeleton.
摘要:
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: at least one phosphorescent material; and a host material represented by the following formula (1). Ra—Ar1—Ar2—Rb (1)
摘要:
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: at least one phosphorescent material; and a host material represented by the following formula (1). Ra—Ar1—Ar2—Rb (1) In the formula, Ar1, Ar2, Ra and Rb each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted condensed aromatic hydrocarbon group selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzochrysene ring, a picene ring and a benzo[b]fluoranthene ring.
摘要:
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, the organic thin-film layer includes at least one emitting layer, and the at least one emitting layer contains: a host material represented by the following formula (1); and at least one phosphorescent material. Ra—Ar1—Ar2—Ar3—Rb (1) In the formula (1), Ra, Rb, Ar1, Ar2 and Ar3 each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted condensed aromatic hydrocarbon ring selected from a group consisting of a naphthalene ring, a chrysene ring, a fluoranthene ring, a triphenylene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a benzotriphenylene ring, a benzo[b]fluoranthene ring, a benzochrysene ring and a picene ring.When Ar2 represents a substituted or unsubstituted benzene ring, a substituted or unsubstituted 2,7-phenanthrenediyl group or a substituted or unsubstituted triphenylene ring, [Ra—Ar1—] and [Rb—Ar3—] are groups that are structured differently from each other.
摘要:
A material for organic electroluminescence devices of the invention which is for use in combination with at least one phosphorescent metal complex has a specific heterocyclic structure. The material for organic electroluminescence devices is used as a host material or a hole transporting material. An organic electroluminescence device having an anode, a cathode and an organic thin film layer having one or more layers which is interposed between the anode and cathode, in which at least one layer of the organic thin film layer contains the material for organic electroluminescence devices, has a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and shows a long lifetime.
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:
An organic electroluminescent device including a first electrode (11), a second electrode (16), and an organic material layer (20) interposed therebetween; the second electrode (16) being light-transmissible; the organic material layer (20) having a structure wherein a first carrier transporting layer (12), an organic emitting layer (14) and a second carrier transporting layer (15) are stacked in this order; the organic material layer (20) including a conductive light-reflecting layer (13) therein; and the part between the light-transmissible second electrode (16) and the light-reflecting layer (13) forming an optical resonator enhancing light emitted from the organic emitting layer (14).
摘要:
An organic electroluminescence device emitting white light which emits white light and exhibits properties sufficient for practical applications, i.e., a high efficiency of light emission and a long life, is provided. The organic electroluminescence device emitting white light comprises a pair of electrodes and a layer of a light emitting medium disposed between the pair of electrodes, wherein the layer of a light emitting medium comprises a light emitting material emitting blue light and a fluorescent compound having at least one structure selected from a fluoranthene skeleton structure, a pentacene skeleton structure and a perylene skeleton structure.
摘要:
An electroluminescence device including an anode, a cathode, and an emitting layer interposed between the anode and the cathode, in which the emitting layer contains a host, a first dopant, and a second dopant, a luminous intensity of the first dopant is twelve times as great as a luminous intensity of the second dopant or greater, a content of the second dopant is 0.001% by mass to 0.5% by mass, and the emitting layer is formed by a coating process.