Abstract:
Disclosed is a new compound semiconductor material which may be used for thermoelectric material or the like, and its applications. The compound semiconductor may be represented by Chemical Formula 1 below: Chemical Formula 1 Bi2TexSen−xInyMz where in Chemical Formula 1, M is at least one selected from the group consisting of Cu, Fe, Co, Ag and Ni, 2.5
Abstract:
The present invention discloses a type of high figure of merit p-type FeNbTiSb thermoelectric material, whose composition is FeNb1-xTixSb, wherein x=0.06˜0.24. The present invention also discloses the method to prepare these p-type FeNbTiSb thermoelectric materials. The ingots with nominal composition FeNb1-xTixSb are prepared by levitation melting of stoichiometric amounts of Fe, Nb, Ti and Sb under an argon atmosphere. The obtained ingots are mechanically milled to get submicron-scale powders. The obtained powders are compacted by spark plasma sintering to obtain the final bulk p-type FeNbTiSb thermoelectric materials. The compositional elements of these p-type FeNbTiSb thermoelectric materials are abundant in the earth crust. The p-type thermoelectric materials also shows good high temperature stability and the preparation method are simple and high-yield. Therefore, the industrial production cost would be relatively cheap. The maximum zT value of the p-type thermoelectric materials is 1.1 at 1100K, which is the highest value among the p-type Half-Heusler system.
Abstract:
A bismuth-doped perovskite thermoelectric, comprising (Bix, La0.1-x)SrTiO3, wherein x is between 0.01 and 0.1, can have a high figure-of-merit, ZT.
Abstract:
The invention relates to thermoelectric devices and can be used in a variety of devices which utilize thermoelectric modules. A thermoelectric module containing n and p-type conductivity semiconducting branches, connected by means of switching buses into an electric circuit, and a protective polymer coating. The protective polymer coating is applied to the interconnected branches and buses, and the coating is an electrodepositable polymer varnish-paint composition modified with a fluoroelastomer latex.
Abstract:
A thermoelectric conversion material expressed by a chemical formula X3T3-yT′ySb4 (0.025≦y≦0.5), wherein the X includes one or more elements selected from Zr and Hf, the T includes one or more elements selected from Ni, Pd, and Pt, while including at least Ni, and the T′ includes one or more elements selected from Co, Rh, and Ir.
Abstract:
A thermoelectric conversion module is disclosed that corrects the difference in thermal resistance between a P-type thermoelectric conversion member and an N-type thermoelectric conversion member. In this thermoelectric conversion module, since insulators included in the P-type thermoelectric conversion member and the N-type thermoelectric conversion member have a different thermal resistance, it is possible to correct the difference in thermal resistance between the P-type thermoelectric conversion element and the N-type thermoelectric conversion element.
Abstract:
A method of creating a replicated thermoelectric device includes preparing a single thermoelectric device for division. The single thermoelectric device including a plurality of thermoelements positioned between a first substrate and a second substrate. The method further includes dividing the single thermoelectric device to form a replicated thermoelectric device such that the cooling power of the replicated thermoelectric cooling device is substantially equal to twice a cooling power of the single thermoelectric device.
Abstract:
A structure of a thermoelectric film including a thermoelectric substrate and a pair of first diamond-like carbon (DLC) layers is provided. The first DLC layers are respectively located on two opposite surfaces of the thermoelectric substrate and have electrical conductivity.
Abstract:
Composite epitaxial materials that comprise semimetallic ErAs nanoparticles or nanoislands epitaxially embedded in a semiconducting In0.53Ga0.47As matrix both as superlattices and randomly distributed throughout the matrix are disclosed. The presence of these particles increases the free electron concentration in the material while providing scattering centers for phonons. Electron concentration, mobility, and Seebeck coefficient of these materials are discussed and their potential for use in thermoelectric power generators is postulated. These composite materials in accordance with the present invention have high electrical conductivity, low thermal conductivity, and a high Seebeck coefficient. The ErAs nanoislands provides additional scattering mechanism for the mid to long wavelength phonon—the combination reduces the thermal conductivity below the alloy limit.
Abstract:
An n-type thermoelectric conversion material expressed in a chemical formula X3-xX′xT3-yCuySb4 (0≦x 0), the X includes one or more element(s) of Zr and Hf, the X′ includes one or more element(s) of Nb and Ta, and the T includes one or more element(s) selected from Ni, Pd, and Pt, while including at least Ni, the n-type thermoelectric conversion material expressed in the chemical formula X3-xX′xT3-yCuySb4 has symmetry of a cubic crystal belonging to a space group I-43d.
Abstract translation:以化学式X3-xX'xT3-yCuySb4(0&nlE; x <3,0&amp; nlE; y <3.0和x + y> 0)表示的n型热电转换材料,X包括一种或多种元素, 的Zr和Hf,X'包括Nb和Ta的一种或多种元素,并且T包括选自Ni,Pd和Pt中的一种或多种元素,同时至少包含Ni, 以化学式X3-xX'xT3-yCuySb4表示的热电转换材料具有属于空间群I-43d的立方晶体的对称性。