摘要:
Provided is an organic electroluminescence device, including: an anode; a cathode; and organic thin film layers provided between the anode and the cathode, in which: the organic thin film layers have a light emitting layer, and have a hole injecting layer and a hole transporting layer, or a hole injecting/transporting layer on a side which is closer to the anode than the light emitting layer is; the hole injecting layer or the hole injecting/transporting layer contains an aromatic amine derivative having a specific substituent, and the hole transporting layer or the hole injecting/transporting layer contains an aromatic amine derivative having a specific substituent.
摘要:
An organic electroluminescent device including in sequence an anode, a first emitting layer (5), a carrier barrier layer (6), a second emitting layer (7) and a cathode stacked; wherein the ionization potential of the carrier barrier layer (6) is more than the ionization potential of the first emitting layer (5) by 0.1 eV or more and the affinity level of the carrier barrier layer (6) is less than the affinity levels of the first emitting layer (5) and the second emitting layer (7) by 0.1 eV or more.
摘要:
Provided is a condensed ring-containing compound having a condensed dicyclic group having a specific structure and carbazolyl groups and/or indolyl groups, and further provided is an organic electroluminescent device in which an organic thin film layer comprising a single layer or plural layers having at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the condensed ring-containing compound described above in the form of a single component or a mixed component, whereby a current efficiency and a heat resistance are high, and a lifetime is very long.
摘要:
In an organic electroluminescent element comprising an anode layer, an organic luminescent layer, an inorganic compound layer (or reductive dopant layer) and a cathode layer; the organic luminescent layer comprises an aromatic amine compound of a formula (1), and/or an aromatic amine compound of a formula (2) wherein A, B, and Ar1 to Ar6 are independently a C6-60 aromatic group which does not contain a styryl group nor an alkenyl group, at least one of A, Ar1, Ar2, or B, Ar3 to Ar6 contains at least three condensed aromatic rings, and p, q and r of a condensation number are an integer of 1 to 6. The element has significantly long half-life and high luminance even at low driving voltages.
摘要:
A material for an organic EL device conatining a novel naphthacene derivative; a luminescent material containing a novel naphthacene derivative; and an organic electroluminescent device including one or more organic layers interposed between a cathode and an anode, and at least one layer of the organic layers containing a naphthacene derivative represented by the following formula (1) or (2).
摘要:
Provided is a material for an organic electroluminescence (EL) device having high luminous efficiency, high thermostability, and a long lifetime, and an organic EL device utilizing the same. The material for an organic EL device is composed of a compound of a specified structure having a nitrogenous ring. The organic EL device has an organic thin film layer composed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode. In the organic EL device, at least one layer of the organic thin film layer contains the material for an organic EL device.
摘要:
An organic electroluminescent device (1) comprising, a cathode (80), an anode (20), an emitting layer (50) provided between the cathode and the anode, and at least a first layer (30) and a second layer (40) stacked between the anode (20) and the emitting layer (50) in this order from the anode (20) side, the first layer (30) having a hole mobility of 7.0×10−4 (cm2/Vs, electric field intensity: 2.5×104 (V/cm)) or more, the second layer (40) having a hole mobility of 7.0×10−4 (cm2/Vs, electric field intensity: 2.5×104 (V/cm)) or more, and a main compound which forms the first layer (30) differing from a main compound which forms the second layer (40).
摘要:
An organic electroluminescence device comprises a cathode, an anode and a layer of an organic thin film comprising one or a plurality of layers and disposed between the cathode and the anode, wherein at least one of the layers in the layer of an organic thin film comprises a laminate of a layer comprising a metal complex having an energy gap of 2.8 eV or greater and a layer of a host material. The organic electroluminescence device exhibits a higher efficiency of light emission and has a longer life than conventional devices while the emitted light has a high luminance.
摘要:
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 containing a light emitting layer comprising a phosphorescent light emitting compound is provided. The device comprises an electron injecting layer which is adhered to the cathode and comprises at least one compound selected from metal chelate complexes with a ring having nitrogen atom, five-membered cyclic derivatives having nitrogen atom, non-condensed six-membered cyclic derivatives having nitrogen atom and condensed six-membered cyclic derivatives having nitrogen atom and one condensed carbon ring as the main component and at least one compound selected from alkali metals, alkali metal complexes, alkali metal compounds, alkaline earth metals, alkaline earth metal complexes, alkaline earth metal compounds, rare earth metals, rare earth metal complexes and rare earth metal compounds as the reductive dopant. The device uses phosphorescent light emission, exhibits a great efficiency of light emission and has a long life.
摘要:
An organic electroluminescence device comprises a cathode, an anode and a layer of an organic thin film comprising one or a plurality of layers and disposed between the cathode and the anode, wherein at least one of the layers in the layer of an organic thin film comprises a laminate of a layer comprising a metal complex having an energy gap of 2.8 eV or greater and a layer of a host material. The organic electroluminescence device exhibits a higher efficiency of light emission and has a longer life than conventional devices while the emitted light has a high luminance.