Abstract: An anthracene derivative represented by the following formula (1): In the formula (1), Z is a structure represented by the following formula (2).

Abstract: Disclosed is a light-emitting material for organic electroluminescent (EL) devices which is composed of an asymmetric anthracene derivative of a specific structure. Also disclosed are a material for organic EL devices and an organic EL device wherein an organic thin film layer composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. At least one layer composed of the organic thin film layer contains the material for organic EL devices by itself or as a component of a mixture. Consequently, the organic EL device has a high efficiency and a long life. Also disclosed are a light-emitting material for organic EL devices and material for organic devices which enable to realize such an organic EL device.

Abstract: An organic electroluminescence device includes a pair of electrodes and an organic compound layer interposed therebetween. The organic compound layer includes a plurality of emitting layers including a first emitting layer and a second emitting layer, in which at least one of the first and second emitting layers contains a phosphorescent dopant material, and a space layer between the first and second emitting layers. The space layer contains a compound satisfying a relationship of the following numerical formula (1) in terms of a difference ?ST between singlet energy EgS and an energy gap Eg77K at 77K, [Numerical Formula 1] ?ST=EgS?Eg77K?0.5 (eV)??(1).

Abstract: 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.

Abstract: An organic electroluminescence device includes: a first substrate; a reflective metal layer; a first electrode; an organic compound layer; and a second electrode, which are disposed in this sequence. The first substrate is provided by at least one of a metal film, a metal plate, a polymer film, a polymer plate, a polymer film with a damp-proof film, and a polymer plate with a damp-proof film. A smoothening layer is formed partially between the reflective metal layer and the first electrode. The reflective metal layer and the first electrode are electrically conductive to each other at a region where the smoothening layer is not formed.

Abstract: An organic electroluminescence element comprising: an anode layer, a cathode layer, and an organic luminescence layer therebetween, the organic luminescence layer having a carbazole derivative with a glass-transition temperature of 110° C. or higher, and a phosphorescent dopant. This structure makes it possible to provide an organic electroluminescence element which can make use of the triplet exciton state of the carbazole derivative even at room temperature and which has a practical life and superior heat-resistance.

Abstract: Provided is a novel aromatic amine derivative with specified structure. Also provided is an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a cathode and an anode, in which at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storage ability and has long life, and provided an aromatic amine derivative for realizing the organic electroluminescence device.

Abstract: 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. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).

Abstract: An organic electroluminescence element comprising: an anode; a first emitting layer comprising at least a first host material and a first dopant; a second emitting layer comprising at least a second host material and a second dopant; and a cathode in the order mentioned: wherein the energy gap Egh1 of the first host material, the energy gap Egd1 of the first dopant, the energy gap Egh2 of the second host material, and the energy gap Egd2 of the second dopant satisfy the following formulas; and the luminescent intensity I1 at the maximum luminescent wavelength of an emission spectrum derived from the first emitting layer, and the luminescent intensity I2 at the maximum luminescent wavelength of an emission spectrum derived from the second emitting layer satisfy the following formula: Egh1>Egd1 Egh2>Egd2 Egd1>Egd2 I1>3.5×I2.

Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.

Abstract: An organic electroluminescence element comprising: an anode layer, a cathode layer, and an organic luminescence layer therebetween, the organic luminescence layer having a carbazole derivative with a glass-transition temperature of 110° C. or higher, and a phosphorescent dopant. This structure makes it possible to provide an organic electroluminescence element which can make use of the triplet exciton state of the carbazole derivative even at room temperature and which has a practical life and superior heat-resistance.

Abstract: An anthracene derivative represented by the following formula (1): In the formula (1), Z is a structure represented by the following formula (2).

Abstract: A photoelectric conversion device including a substrate, a photoelectric conversion element including a first electrode, a second electrode and an organic compound layer and a sealing member that are disposed in this order. When a cross section of the photoelectric conversion device in a thickness direction is observed with the sealing member being placed at an upper side, a bonding member seals the organic compound layer at an outside thereof. An output electrode on the sealing member has a protrusion. A side conductive portion is electrically connected with the protrusion in an up-and-down direction. A substrate conductive member electrically connected with the first electrode and the second electrode extends to an outside of the bonding member. An electrical connecting member electrically connects the side conductive portion to the substrate conductive member at a further outside of the bonding member.

Abstract: A material for organic electroluminescence devices comprising a compound in which a heterocyclic group having nitrogen is bonded to an arylcarbazolyl group or a carbazolylalkylene group and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer comprising at least one layer and disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices described above. The material can provide an organic electroluminescence device emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.

Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.

Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.

Abstract: An organic electroluminescence device including opposite anode and cathode, and a hole-transporting region, an emitting layer and an electron-transporting region in sequential order from the anode between the anode and the cathode, wherein the emitting layer includes a red emitting portion, a green emitting portion, and a blue emitting portion; the blue emitting portion includes a host BH and a fluorescent dopant FBD; the triplet energy ETfbd of the fluorescent dopant FBD is larger than the triplet energy ETbh of the host BH; the green emitting portion includes a host GH and a phosphorescent dopant PGD; the electron-transporting region includes a common electron-transporting layer adjacent to the red emitting portion, the green emitting portion and the blue emitting portion; the common electron-transporting layer includes a material having a triplet energy ETel larger than ETbh; and the difference between the affinity of the host GH and the affinity of the material constituting the common electron-transportin

Abstract: An organic electroluminescence device includes an anode, a cathode and layers between the anode and the cathode, the layers at least including a hole transporting layer, a first emitting layer, a second emitting layer and an electron transporting layer, in which the first emitting layer includes a first host material and a first luminescent material and the second emitting layer is continuously formed on the first emitting layer near the cathode and includes a second host material and a second luminescent material. The second host material is a monoazine derivative, a diazine derivative, or a triazine derivative. The first and second luminescent materials are different metal complexes.

Abstract: An organic EL device includes a pair of electrodes and an organic compound layer between pair of electrodes. The organic compound layer includes an emitting layer including a first material and a second material. The second material is a fluorescent material. Singlet energy EgS(H) of the first material and singlet energy EgS(D) of the second material satisfy a relationship of the following formula (1). The first material satisfies a relationship of the following formula (2) in terms of a difference ?ST(H) between the singlet energy EgS(H) and an energy gap Eg77K(H) at 77K. EgS(H)>EgS(D)??(1) ?ST(H)=EgS(H)?Eg77K(H)<0.

Abstract: A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.