摘要:
An anthracene derivative represented by the following formula (1): wherein in the formula (1), L 1 is selected from a single bond and a linking group, and the linking group is selected from a divalent arylene group, a divalent heterocyclic group, and a group formed by linking of 2 to 4 of divalent arylene groups and/or divalent heterocyclic groups. Ar 1 is selected from the following formulas (2) and (3). In the formulas (2) and (3), X is selected from an oxygen atom and a sulfur atom. In the formula (2), any one of R 11 to R 14 is used for bonding to L 1 . In the formula (3), any one of R 21 to R 24 is used for bonding to L 1 . Ar 2 is selected from a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms and a substituted or unsubstituted heterocyclic group including 5 to 50 ring atoms.
摘要:
A top-emission organic electroluminescence device (1) includes in order a first electrode (20), one or more organic layers (30B) including a blue-emitting layer (34B), a second electrode (40), and a capping layer (50), wherein the capping layer (50) is formed of a material that satisfies the expression "n(λ=430 nm) - n(λ=460 nm) > 0.08" (where, n(A=x nm) indicates a refractive index at a wavelength of x nm) and has an extinction coefficient of 0.1 or less at a wavelength of 430 to 500 nm.
摘要:
An organic electroluminescence device including: an anode (10), a cathode (70), an emitting layer (40) including an organic compound, which is between the anode (10) and the cathode (70), two or more layers arranged in a hole injection and transport region which is between the anode (10) and the emitting layer (40), and one or more layers arranged in an electron injection and transport region which is between the emitting layer (40) and the cathode (70), wherein a layer in the hole injection and transport region, which is in contact with the emitting layer (40), includes an aromatic amine derivative having a carbazole skeleton, one of the layers other than the layer in contact with the emitting layer (40) in the hole injection and transport region includes one or more materials selected from the group consisting of thiophene derivatives, tricyclic or more cyclic fused aromatic derivatives, amine derivatives excluding the compound represented by the following formula (A), conductive polymers, CF x , CuPc, transition metal oxides, fullerenes and acceptor materials, and a layer in the electron injection and transport region includes a benzimidazole derivative.
摘要:
A benzo[k]fluoranthene derivative represented by the following formula (1): wherein R 1 to R 12 are as defined in the specification. The benzo[k]fluoranthene derivative represented by the formula (1) reduces a driving voltage of an organic electroluminescence device and makes it possible to realize light emission with high efficiency and long lifetime.
摘要:
An oxygen-containing fused ring derivative represented by the following formula (1) wherein Ar 1 is an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5):
摘要:
An organic electroluminescence device (1) includes an anode (10), an emitting layer (20), an electron transporting zone (70), and a cathode (50) in sequential order. The emitting layer (20) includes a host and a fluorescent dopant. A blocking layer (30) is adjacent to the emitting layer (20) in the electron transporting zone (70). The blocking layer (30) includes an aromatic heterocyclic derivative. A triplet energy ET b (eV) of the aromatic heterocyclic derivative is larger than a triplet energy ET h (eV) of the host. The aromatic heterocyclic derivative has an azine ring.
摘要翻译:有机电致发光器件(1)依次包括阳极(10),发光层(20),阻挡层(30),电子注入层(40)和阴极(50)。 发射层(20)包括主体和掺杂剂。 阻挡层(30)包含芳香族杂环衍生物。 阻挡层(30)的三重态能量E T b(eV)大于主体的三重态能量E T h(eV)。 阻挡层(30)的亲和力A b(eV)和电子注入层的亲和力A e(eV)满足关系A e -A b <0.2。
摘要:
An organic electroluminescence device sequentially includes an anode, an emitting layer, an electron-transporting region, and a cathode, the electron-transporting region including an electron-transporting material that includes a cyano group and an aromatic ring group.
摘要:
An organic electroluminescence device including a pair of electrodes and one or more organic compound layers therebetween, the one or more organic compound layers comprising an emitting layer, wherein the emitting layer includes a pyrene derivative represented by the following formula (1) and the content of the pyrene derivative in the emitting layer is 50 to 100 wt%;