Composition for forming a thermoelectric film and thermoelectric film containing the same
Disclosed is a composition for forming a thermoelectric film, the composition comprising an edge-oxidized graphene oxide, wherein the edge-oxidized graphene oxide is dispersed in a thermoelectric material.
1. A thermoelectric thick film consisting of a thermoelectric material, and an edge-oxidized graphene oxide, wherein the thermoelectric material is one or more selected from the group consisting of a Bi—Te based compound, an Sb-Tb based compound, a Bi—Sb—Te based compound, a Bi—Te—Se based compound, a Co—Sb based compound, a Pb—Te based compound, a Ge—Tb based compound, an Si—Ge based compound and an Sm—Co based compound, wherein the edge oxidized graphene oxide is dispersed in the thermoelectric material, and the content of the edge oxidized graphene oxide is greater than 0.5 parts by weight and 10 parts by weight or less with respect to 100 parts by weight of the total thermoelectric thick film.
2. The thermoelectric thick film of claim 1 , wherein the thickness of the thermoelectric film is 100 μm to 900 μm.
3. The thermoelectric thick film of claim 1 , wherein the edge-oxidized graphene oxide is dispersed on a surface or in an inside of the thermoelectric material to connects a porous region formed inside the thermoelectric film and provide a new charge movement path.
4. A cooling/heating device, comprising the thermoelectric thick film of claim 1 , for internal combustion engine vehicles, hybrid vehicles, and electric vehicles.
5. An electronic material applied to one selected from the group consisting of an independent power supply device of a mobile device, a self power generation device, and an infrared sensor which comprise the thermoelectric thick film of claim 1 .