An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material. ##STR00001##

The present invention provides: a thermoelectric conversion material capable of being produced in a simplified manner and at a lower cost and excellent in thermoelectric performance and flexibility, and a method for producing the material. The thermoelectric conversion material has, on a support, a thin film of a thermoelectric semiconductor composition containing thermoelectric semiconductor fine particles, a heat-resistant resin and an inorganic ionic compound. The method for producing a thermoelectric conversion material having, on a support, a thin film of a thermoelectric semiconductor composition containing thermoelectric semiconductor fine particles, a heat-resistant resin and an inorganic ionic compound includes a step of applying a thermoelectric semiconductor composition containing thermoelectric semiconductor fine particles, a heat-resistant resin and an inorganic ionic compound onto a support and drying it to form a thin film thereon, and a step of annealing the thin film.

Proposed are an organic-inorganic composite thermoelectric material and a preparation method thereof. The organic-inorganic composite thermoelectric material includes an organic matrix and an inorganic thermoelectric portion dispersed in the organic matrix and including a nanomaterial. The organic matrix includes an organic conductor, and the nanomaterial includes at least one selected from the group consisting of a chalcogen element and a chalcogenide. The organic-inorganic composite thermoelectric material of the present invention has advantages of low cost and excellent thermoelectric properties through complexation of an aligned inorganic thermoelectric material and an organic thermoelectric material.

Disclosed is an organic light-emitting display device, which prevents lateral current leakage by providing a structure on a bank so as to cut off an organic material, which is formed in a subsequent process, around the structure.

The present application relates to copper-doped double perovskites, for example, copper-doped double perovskites of the formula (I) and to uses thereof, for example as low-bandgap materials such as a semiconducting material in a device. The present application also relates to methods of tuning the bandgap of a Cs.sub.2SbAgZ.sub.6 double perovskite (for example, wherein Z is Cl) comprising doping the double perovskite with copper.
Cs.sub.2Sb.sub.1-aAg.sub.1-bCu.sub.2xZ.sub.6  (I)

Disclosed are an organic thermoelectric material and a thermoelectric generator including the same. More particularly, the thermoelectric generator includes an ionically conductive active layer containing a polyanion including an anionic group and a counter cation in a repeat unit thereof; a conductive polymer; and a polyvalent crosslinking agent as a single molecule including a plurality of acid functional groups. First and second electrodes are disposed to be connected to the ionically conductive active layer.

A light-emitting device and a lighting device each of which includes a plurality of light-emitting elements exhibiting light with different wavelengths are provided. The light-emitting device and the lighting device each have an element structure in which each of the light-emitting elements emits only light with a desired wavelength, and thus the light-emitting elements have favorable color purity. In the light-emitting element emitting light (λ.sub.R) with the longest wavelength of the light with different wavelengths, the optical path length from a reflective electrode to a light-emitting layer (a light-emitting region) included in an EL layer is set to λ.sub.R/4 and the optical path length from the reflective electrode to a semi-transmissive and semi-reflective electrode is set to λ.sub.R/2.

A semiconductor sintered body comprising a polycrystalline body, wherein the polycrystalline body comprises silicon or a silicon alloy, and the average grain size of the crystal grains constituting the polycrystalline body is 1 μm or less, and the electrical conductivity is 10,000 S/m or higher.

A FET is formed on a semiconductor substrate, a curved surface having a radius of curvature is formed on an upper end of an insulation, a portion of a first electrode is exposed corresponding to the curved surface to form an inclined surface, and a region defining a luminescent region is subjected to etching to expose the first electrode. Luminescence emitted from an organic chemical compound layer is reflected by the inclined surface of the first electrode to increase a total quantity of luminescence taken out in a certain direction.

The present invention provides for an inorganic nanostructure-organic polymer heterostructure, useful as a thermoelectric composite material, comprising (a) an inorganic nanostructure, and (b) an electrically conductive organic polymer disposed on the inorganic nanostructure. Both the inorganic nanostructure and the electrically conductive organic polymer are solution-processable.