摘要:
The invention relates to a thermoelectrically active p- or n-conductive semiconductor material constituted by a compound of the general formula (I) (PbTe)1-x(Sn2±ySb2±zTe5)x (I) with 0.0001≦x≦0.5, 0≦y
摘要翻译:本发明涉及由通式(I)的化合物<?in-line-formula description =“In-Line Formulas”end =“lead”→(PbTe)构成的热电活性p型或n导电半导体材料 )1-x(Sn 2 + y 2 Sb 2 + z 5)5 (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>与0.0001 <= x <= 0.5,0 <= y <2和0 <= z <2, 其中0至10重量%的化合物可以被其它金属或金属化合物代替,其中该半导体材料在25℃的温度下具有至少≥60μV/ K的塞贝克系数,并且电气 至少150S / cm的电导率和至少5μW/(cm·K 2)的功率因数进一步涉及制备这种半导体材料的方法,以及发电机和 佩尔蒂耶安排包含它们。
摘要:
The invention relates to a thermoelectrically active p- or n-conductive semiconductor material constituted by a compound of the general formula (I) (PbTe)1−x(Sn2±ySb2±zTe5)x (I) with 0.0001≦x≦0.5, 0≦y
摘要翻译:本发明涉及由通式(I)的化合物(PbTe)1-x(Sn2±ySb2±zTe5)x(I)与0.0001&nlE; x&nlE; 0.5的化合物构成的热电活性p型或n导电半导体材料。 ,0&nlE; y <2和0&nlE; z <2,其中0至10重量%的化合物可以被其它金属或金属化合物代替,其中半导体材料具有至少| S |≥60μV的塞贝克系数 / K,温度25℃,导电率至少为150S / cm,功率因数至少为5μW/(cm·K2)),还涉及制备这种半导体材料的方法 对于包含它们的发电机和珀尔帖安排。
摘要:
A thermoelectrically active p- or n-conductive semiconductor material is constituted by a ternary compound of the general formula (I) (Pb1-xGex)Te (I) with x value from 0.16 to 0.5, wherein 0 to 10% by weight of the ternary compound may be replaced by other metals or metal compounds, wherein the semiconductor material has a Seebeck coefficient of at least ±200 μV/K at a temperature of 25° C.
摘要:
For a process for reducing the thermal conductivity and for increasing the thermoelectric efficiency of thermoelectric materials based on lead chalcogenides or skutterudites, the thermoelectric materials are extruded at a temperature below their melting point and a pressure in the range from 300 to 1 000 MPa.
摘要:
The invention relates to a capacitor having a porous electrically conductive substrate on whose inner and outer surfaces a first layer of a dielectric and an electrically conductive second layer are applied.The invention also relates to a method for the production of such capacitors and to their use in electrical and electronic circuits.
摘要:
The invention relates to a photovoltaic cell and to a process for producing a photovoltaic cell comprising a photovoltaically active semiconductor material of the formula (I) or (II): ZnTe (I) Zn1-xMnxTe (II) where x is from 0.01 to 0.7, wherein the photovoltaically active semiconductor material comprises a metal halide comprising a metal selected from the group consisting of germanium, tin, antimony, bismuth and copper and a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine
摘要:
The invention relates to the thermally stable contacting of semiconductive alloys for use in thermoelectric generators and Peltier arrangements by means of soldering, and to processes for producing thermoelectric modules using a barrier layer composed of borides, nitrides, carbides, phosphides and/or silicides.
摘要:
Process for preparing barium titanate or strontium titanate by reacting titanium alkoxides with barium hydroxide hydrate or strontium hydroxide hydrate in a C1–C8-alcohol or a glycol ether at from 50 to 150° C.
摘要:
Process for preparing mixed oxides by reacting alkoxides of the elements titanium, zirconium, niobium, tantalum or mixtures thereof with metal hydroxides, metal carboxylates, metal hydroxycarbonates, metal carbonates or mixtures thereof of the elements lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, cadmium, aluminum, gallium, yttrium, lanthanum, praseodymium, neodymium, samarium, dysprosium, europium, lead, bismuth or mixtures thereof in a C1–C8-alkanol, in a glycol ether or in a mixture thereof at from 50 to 200° C.
摘要:
In a photovoltaic cell having a photovoltaically active semiconductor material constituted by a plurality of metals or metal oxides, the photovoltaically active material is selected from a p- or n-doped semiconductor material constituted by a ternary compound of the general formula (I) MexSAySBz (I) with Me=Al, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu or Ag, SA, SB=B, C, Si, Ge, Sb, Se or Te, where SA and SB respectively come from different groups of the periodic table, x, y, z are independent of one another and can take values from 0.01 to 1, and where the proportion by weight of SA and SB together is no more than 30%, expressed in terms of the total semiconductor material, or a mixed oxide of the general formula (II) [ ( CaO ) u · ( SrO ) v · ( BaO ) w · ( 1 / 2 Bi 2 O 3 ) x ] f · 2 n + a 2 · ( { k } · Me n O n 2 { 2 - k } · Me n + a O n + a 2 ) ( II ) with Me=Fe, Cu, V, Mn, Sn, Ti, Mo, W n=integer from 1 to 6, a=1 or 2, f=number from 0.2 to 5, k=number from 0.01 to 2, u+v+w+x=1.