Abstract: The present invention is to provide a metal particle dispersion which has low viscosity and excellent dispersibility and dispersion stability, and in which the precipitation of the metal particles is inhibited.

Abstract: A device including a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a reaction product of a transition metal complex or complexes, and wherein at least one or more kinds of transition metals selected from the group consisting of vanadium, rhenium and platinum, or a mixture of molybdenum and one or more kinds of transition metals selected from the group consisting of vanadium, rhenium and platinum is contained in a central metal or metals of the transition metal complex or complexes.

Abstract: There is provided an organic electronic device that can exhibit a long lifetime while having a facilitated production process. An organic electronic device and a method for producing it, wherein the organic electronic device comprises two or more electrodes facing each other on a substrate, and an organic functional layer that includes at least a hole injecting layer and/or a hole transporting layer situated between two electrodes, wherein the hole injecting layer and/or hole transporting layer is formed as a thin-film from a fluid material that comprises anionic metal oxide clusters that include at least one metal element selected from among elements of Group 5, Group 6 or Groups 8-10 of the Periodic Table, the metal oxide clusters being polyoxometalates, dissolved or uniformly dispersed or mixed in an aqueous solvent.

Abstract: A QD protecting material having high compatibility with a binder component in a luminescent layer. The luminescent layer contains, as a part of its chemical structure, a compound containing a moiety A having a sum atomic weight MA of 100 or more and quantum dots protected by a protecting material, the protecting material contains, as a part of its chemical structure, a linking group connected to a quantum dot surface and a moiety B that has a sum atomic weight MB of 100 or more, satisfies a relationship between MB and MA represented by |MA?MB|/MB (2, and satisfies the requirement that the sum atomic weight MB is larger than one-third of the molecular weight of the protecting material, and a solubility parameter SA of the moiety A and a solubility parameter SB of the moiety B satisfy a relationship represented by |SA (SB| (2.

Abstract: The present invention is to provide a metal particle dispersion which has low viscosity and excellent dispersibility and dispersion stability, and in which the precipitation of the metal particles is inhibited.

Abstract: Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to the surface of a transition metal-containing nanoparticle or nanocluster which contains at least a transition metal oxide. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.

Abstract: Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to an organic-transition metal oxide composite which is a reaction product of an organotransition metal complex. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.

Abstract: A main object of the present invention is to provide an organic EL element including an electron injection and transport layer containing an organic boron compound, which has excellent characteristics such as efficiency and service life. The present invention achieves the object mentioned above by providing an organic EL element including: an anode; a light emitting layer formed on the anode; an electron injection and transport layer that is formed on the light emitting layer, contains an organic boron compound, and has a crystalline structure; and a cathode formed on the electron injection and transport layer.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a transition metal compound-containing nanoparticle comprising a transition metal compound containing one or more kinds selected from the group consisting of a transition metal carbide oxide, transition metal nitride oxide and transition metal sulfide oxide, wherein a protecting agent having a linking group and a hydrophobic organic group is connected to the transition metal compound by the linking group.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a transition metal compound-containing nanoparticle comprising a transition metal compound containing one or more kinds selected from the group consisting of a transition metal carbide oxide, transition metal nitride oxide and transition metal sulfide oxide, wherein a protecting agent having a linking group and a hydrophobic organic group is connected to the transition metal compound by the linking group.

Abstract: A device having an easy production process and capable of achieving a long lifetime. The device has a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes. The positive hole injection transport layer contains a reaction product of a molybdenum complex or tungsten complex.

Abstract: A device capable of having an easy production process and achieving a long lifetime. The device has a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes. The positive hole injection transport layer has a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.

Abstract: A main object of the present invention is to provide an organic EL element including an electron injection and transport layer containing an organic boron compound, which has excellent characteristics such as efficiency and service life. The present invention achieves the object mentioned above by providing an organic EL element including: an anode; a light emitting layer formed on the anode; an electron injection and transport layer that is formed on the light emitting layer, contains an organic boron compound, and has a crystalline structure; and a cathode formed on the electron injection and transport layer.

Abstract: An organic EL device includes an organic luminescent layer between an anode and a cathode. The organic luminescent layer comprises at least two host materials and a dopant which is a luminescent compound. The at least two host materials are identical to or substantially identical to each other in the energy value of LUMO, but on the other hand, are different from each other in the energy value of HOMO. Alternatively, the at least two host materials are identical to or substantially identical to each other in the energy value of HOMO, but on the other hand, are different from each other in the energy value of LUMO. According to the above constitution, the balance of mobility between the electrons and holes can be regulated to solve the above problem of the prior art.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer comprises a transition metal-containing nanoparticle containing at least a transition metal compound including a transition metal oxide, a transition metal and a protecting agent, or at least the transition metal compound including the transition metal oxide, and the protecting agent.

Abstract: The present invention is to provide a device capable of having an easy production process and achieving a long lifetime. A device comprising a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a transition metal compound-containing nanoparticle comprising a transition metal compound containing one or more kinds selected from the group consisting of a transition metal carbide oxide, transition metal nitride oxide and transition metal sulfide oxide, wherein a protecting agent having a linking group and a hydrophobic organic group is connected to the transition metal compound by the linking group.

Abstract: A device including a substrate, two or more electrodes facing each other disposed on the substrate and a positive hole injection transport layer disposed between two electrodes among the two or more electrodes, wherein the positive hole injection transport layer contains a reaction product of a transition metal complex or complexes, and wherein at least one or more kinds of transition metals selected from the group consisting of vanadium, rhenium and platinum, or a mixture of molybdenum and one or more kinds of transition metals selected from the group consisting of vanadium, rhenium and platinum is contained in a central metal or metals of the transition metal complex or complexes.

Abstract: Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to the surface of a transition metal-containing nanoparticle or nanocluster which contains at least a transition metal oxide. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.