A thermoelectric conversion material containing an electrically conductive material (A) and an organic compound (B) that are in a relationship satisfying the following formula (1): 0 eV≤|(HOMO of the organic compound (B))−(HOMO of the electrically conductive material (A))|≤1.64 eV.

An integrated flexible thermoelectric device includes p-type carbon nanoparticle regions and n-type carbon nanoparticle regions which are alternately and continuously connected to each other. In particular, the p-type carbon nanoparticle regions and the n-type carbon nanoparticle regions are formed on the one carbon nanoparticle paper.

A thermoelectric element to convert thermal energy into electrical energy includes a first electrode part, a second electrode part having a different work function than the first electrode part and arranged at a distance from the first electrode part, on a same surface of a substrate as the first electrode part, and a middle part provided between the first electrode part and the second electrode part.

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.

A semiconductor sintered body comprising a polycrystalline body, wherein the polycrystalline body includes silicon or a silicon alloy, wherein the average grain size of the crystal grains forming the polycrystalline body is 1 μm or less, and wherein nanoparticles including one or more of a carbide of silicon, a nitride of silicon, and an oxide of silicon are present at a grain boundary of the grains.

An optical fiber has an optical fiber core for high-power laser transmission, an optical cladding surrounding the optical fiber core, and at least one harvesting cell disposed around the optical cladding, where the harvesting cell includes an anode, a thermoelectric layer disposed adjacent to and electrically connected to the anode, and a cathode disposed adjacent to and electrically connected to the thermoelectric layer, and where the thermoelectric layer includes a polymer-based thermoelectric material.

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 system includes a high-power laser surface unit capable of generating a high-power laser beam having an output power of at least 10 kW, an optical fiber connected to the high-power laser surface unit, and at least one harvesting cell disposed around the optical fiber. The optical fiber includes an optical cladding surrounding an optical fiber core. Each harvesting cell includes an anode, a cathode, and a thermoelectric layer disposed adjacent to and electrically connected to the anode and the cathode, where the thermoelectric layer includes a polymer-based thermoelectric material.