Abstract: Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (1), wherein, X represents O or S; Y1 to Y3 each represents a hydrogen atom, a substituent or a group represented by Formula (A) disclosed un the specification, provided that at least two of Y1 to Y3 are groups represented by Formula (A), not all of Y1 to Y3 are the same group, and at least one of the groups represented by Formula (A) has Ar of a carbazolyl group, or an azacarbazolyl group containing 2 to 5 nitrogen atoms.

Abstract: Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (1), wherein, X represents O or S; Y1 to Y3 each represents a hydrogen atom, a substituent or a group represented by Formula (A) disclosed in the specification, provided that at least two of Y1 to Y3 are groups represented by Formula (A), not all of Y1 to Y3 are the same group, and at least one of the groups represented by Formula (A) has Ar of a carbazolyl group, or an azacarbazolyl group containing 2 to 5 nitrogen atoms.

Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1?Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:

Abstract: Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1), (Ar1)n1-Y1??Formula (1) wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:

Abstract: Provided is an organic EL element, which has a controlled emission wavelength, a high emission efficiency and a long emission life. An organic EL element material for such organic EL element, a lighting device, and a display device using such organic EL element are also provided.

Abstract: Disclosed is a novel organic EL device material. Also disclosed are an organic EL device, an illuminating device and a display each having high emission efficiency and long emission lifetime, which are obtained by employing the organic EL device material.

Abstract: Disclosed is an organic electroluminescent element which is characterized in that constituent layers including at least a phosphorescent light-emitting layer are provided between a pair of electrodes, and at least one of the constituent layers contains a compound represented by general formula (1). (In the formula, A1, A2 and A3 each represents a substituent; n1 and n2 each represents an integer of 0-3; X1 and X2 each represents an oxygen atom, a sulfur atom, an alkylene group, an imino group, a carbonyl group, a sulfoxide group or a sulfonyl group, or alternatively X2 represents a bonding hand; and Z1, Z2, Z3 and Z4 each represents an optionally substituted aromatic heterocyclic ring or an aromatic hydrocarbon ring, provided that all of the Z1, Z2, Z3 and Z4 are not aromatic hydrocarbon rings at the same time.

Abstract: Disclosed is an organic EL device having high luminous efficiency and long emission life, wherein emission wavelength is controlled. Also disclosed are an illuminating device and a display. Specifically disclosed is an organic electroluminescent device containing at least a light-emitting layer sandwiched between an anode and a cathode. This organic electroluminescent device is characterized in that the light-emitting layer contains a metal complex having a partial structure represented by the following general formula (1).

Abstract: Provided is an organic electroluminescence element having an anode, a cathode and an organic compound layer sandwiched between the anode and the cathode, provided that the organic compound layer containing at least a phosphorescence dopant and a polymer which contains a partial structure represented by Formula (1), and a terminal end of the polymer is end-capped, wherein the phosphorescence dopant is a metal complex containing a ligand composed of a 5 or six membered aromatic hydrocarbon ring or a 5 or six membered aromatic heterocyclic group which is bonded to a five membered nitrogen containing aromatic heterocyclic group: Formula (1)

Abstract: The invention relates to polymers useful in optoelectronic devices and comprising structural unit of formula I: wherein R1 and R2 are independently at each occurrence, hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or alkyl; a and b are, independently at each occurrence 0, or an integer ranging from 1 to 3; and Ar is a direct bond or aryl.

Abstract: Disclosed is an organic electroluminescent device having long life, while exhibiting high luminous efficiency. Also disclosed are an illuminating device and a display, each using such an organic electroluminescent device. In the organic electroluminescent device, a compound represented by the general formula (A) which is suitable as a host material for a phosphorescent metal complex is used at least in one sublayer of a light-emitting layer.

Abstract: Provided is an o organic electroluminescence element comprising an anode, a cathode and a plurality of composing layers including a light emitting layer sandwiched between the anode and the cathode, wherein an electron transport layer containing the compound represented by Formula (1) is included in the composing layers; the light emitting layer contains a phosphorescence emitting organic metal complex; and the cathode or one composing layer adjacent to the cathode contains a metal or a metal compound belonging to Group 1 or Group 2 of the periodic table of elements, provided that the metal exhibits a standard electrode potential larger than ?3 V vs.

Abstract: Provided is a method for producing a nitrogen-containing condensed heterocyclic compound containing the step of: reacting a compound represented by Formula (1a) or Formula (1b) with a compound represented by Formula (2) under existence of cupper or a cupper ion, and a ligand to produce a nitrogen-containing condensed heterocyclic compound represented by Formula (3a) or Formula (3b):

Abstract: An organic electroluminescent element containing an anode and a cathode having therebetween a light emitting layer, wherein the light emitting layer contains a guest compound having a substructure represented by the following Formula (A): wherein Ra represents alkyl, alkenyl, alkynyl, cycloalkyl, aromatic hydrocarbon, aromatic heterocyclic or heterocyclic, Rb and Rc represent hydrogen or a substituent, A1 represents a group of atoms which forms an aromatic hydrocarbon ring or an aromatic heterocycle, M represents Ir or Pt, and a host compound having the following Formula (1): wherein Ra1 represents alkyl, alkenyl, alkynyl, cycloalkyl or heterocyclic, R1, R2 and R5 each represent hydrogen or a substituent, and n1, n2 and n5 each represent 0 to 4.

Abstract: An organic electroluminescent element containing an anode and a cathode having therebetween a light emitting layer, wherein the light emitting layer contains a guest compound having a substructure represented by the following Formula (A): wherein Ra represents alkyl, alkenyl, alkynyl, cycloalkyl, aromatic hydrocarbon, aromatic heterocyclic or heterocyclic, Rb and Rc represent hydrogen or a substituent, A1 represents a group of atoms which forms an aromatic hydrocarbon ring or an aromatic heterocycle, M represents Ir or Pt, and a host compound having the following Formula (1): wherein Ra1 represents alkyl, alkenyl, alkynyl, cycloalkyl or heterocyclic, R1, R2 and R5 each represent hydrogen or a substituent, and n1, n2 and n5 each represent 0 to 4.

Abstract: Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound, wherein at least one of the organic compound layers contains a compound represented by Formula (1), wherein, X represents O or S; Y1 to Y3 each represents a hydrogen atom, a substituent or a group represented by Formula (A) disclosed in the specification, provided that at least two of Y1 to Y3 are groups represented by Formula (A), not all of Y1 to Y3 are the same group, and at least one of the groups represented by Formula (A) has Ar of a carbazolyl group, or an azacarbazolyl group containing 2 to 5 nitrogen atoms.

Abstract: An organic electroluminescent element comprising an anode and a cathode having therebetween an emission layer containing a phosphorescent compound and an layer adjacent to the emission layer, the layer adjacent to the emission layer being provided between the emission layer and the cathode, wherein the layer adjacent to the emission layer comprises a compound having an electron withdrawing group; and the compound exhibits a HOMO level of ?5.7 to ?7.0 eV and a LUMO level of ?1.3 to ?2.3 eV.

Abstract: An optoelectronic device comprises a cathode; an electron-transporting layer comprising a compound of formula I; a light emitting-layer; and an anode; wherein R1 and R2 are independently at each occurrence, hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or alkyl; a and b are, independently at each occurrence 0, or an integer ranging from 1 to 3; n is 2 or 3; and Ar is an aryl.

Abstract: Disclosed is an organic electroluminescent element having high luminous efficiency and long life. Also disclosed are a display device and an illuminating device respectively using such an organic electroluminescent element. Specifically disclosed is an organic electroluminescent element comprising an electrode and at least one or more organic layers on a substrate. This organic electroluminescent element is characterized in that at least one of the organic layers is a light-emitting layer containing a phosphorescent compound and a host compound, the phosphorescent compound has a HOMO of ?5.15 to ?3.50 eV and a LUMO of from ?1.25 to +1.00 eV, and the host compound has a 0-0 band of the phosphorescence spectrum at not more than 460 nm and a glass transition temperature of not less than 60° C.

Abstract: According to this invention, it is possible to provide an organic electroluminescence element material comprising a metal complex having a specific ligand, and an organic electroluminescence element which exhibits high emission efficiency as well as long emission life, employing the organic electroluminescence element material, and to provide an illumination device and a display device. The electroluminescence element material is characterized by containing a metal complex having a ligand represented by following Formula (1).