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:
Chalcogenide compounds with cation exchange capability and methods of using the compounds are described. Compounds of the general formula A2xMxSn3-xS6 are described wherein x is 0.1-0.95, A is Li+, Na+, K+ or Rb+ and M is Mn2+, Mg2+, Zn2+, Fe2+, Co2+ or Ni2+. Compounds of the general formula H2xMxSn3-xS6 are also described wherein x is 0.1-0.95 and M=Mn2+, Mg2+, Zn2+, Fe2+, Co2+ or Ni2+. The compounds can be layered compounds. The compounds are capable of intercalation of Cs+, Sr2+, Hg2+, Pb2+, Cd2+, and/or Ag+ ions. A process involving contacting the compounds with a solution comprising one or more ions including Cs+, Sr2+, Hg2+, Pb2+, Cd2+, and/or Ag+ is also provided. The one or more ions can be removed from the solution by the compounds. A process comprising contacting compounds of the general formula A2xMxSn3-xS6 with a solution containing UO22+, Th4+ or Pu4+ ions is also described.
摘要:
A thermoelectric composition comprises a material represented by the general formula (AgaX1−a)1±x(SnbPb1−b)mM′1−yQ2+m wherein X is Na, K, or a combination of Na and K in any proportion; M′ is a trivalent element selected from the group consisting of Sb, Bi, lanthanide elements, and combinations thereof; Q is a chalcogenide element selected from the group consisting of S, Te, Se, and combinations thereof; a and b are independently >0 and ≦1; x and y are independently >0 and
摘要:
A thermoelectric material of the general formula Ag1−XMmM′Q2+m, wherein M is selected from the group consisting of Pb, Sn, Ca, Sr, Ba, divalent transition metals, and combinations thereof; M′ is selected from the group consisting of Bi, Sb, and combinations thereof; Q is selected from the group consisting of Se, Te, S, and combinations thereof; 8≦m≦24; and 0.01≦x≦0.7. In embodiments of the invention, the compositions exhibit n-type semiconductor properties. In preferred embodiments, x is from 0.1 to 0.3, and m is from 10 to 18. The compositions may be synthesized by adding stoichiometric amounts of starting materials comprising Ag, M, M′, and Q to a reaction vessel, heating the starting materials to a temperature and for a period of time sufficient to melt the materials, and cooling the reaction product at a controlled rate of cooling.
摘要翻译:通式为Ag1-XMmM'Q2 + m的热电材料,其中M选自Pb,Sn,Ca,Sr,Ba,二价过渡金属及其组合; M'选自Bi,Sb及其组合; Q选自Se,Te,S及其组合; 8 <= m <= 24; 和0.01 <= x <= 0.7。 在本发明的实施方案中,组合物显示n型半导体性质。 在优选的实施方案中,x为0.1至0.3,m为10至18.可通过向反应容器中加入化学计量量的包含Ag,M,M'和Q的起始材料来合成组合物,加热原料 达到足以熔化材料的温度和一段时间,并以受控的冷却速度冷却反应产物。
摘要:
A thermoelectric material of the general formula Ag1-XMmM′Q2+m, wherein M is selected from the group consisting of Pb, Sn, Ca, Sr, Ba, divalent transition metals, and combinations thereof; M′ is selected from the group consisting of Bi, Sb, and combinations thereof; Q is selected from the group consisting of Se, Te, S, and combinations thereof; 8≦m≦24; and 0.01≦x ≦0.7. In embodiments of the invention, the compositions exhibit n-type semiconductor properties. In preferred embodiments, x is from 0.1 to 0.3, and m is from 10 to 18. The compositions may be synthesized by adding stoichiometric amounts of starting materials comprising Ag, M, M′, and Q to a reaction vessel, heating the starting materials to a temperature and for a period of time sufficient to melt the materials, and cooling the reaction product at a controlled rate of cooling.
摘要翻译:一种通式为Ag 1-X M m Q 2 + m + 2的热电材料,其中M选自 Pb,Sn,Ca,Sr,Ba,二价过渡金属及其组合; M'选自Bi,Sb及其组合; Q选自Se,Te,S及其组合; 8 <= m <= 24; 和0.01 <= x <= 0.7。 在本发明的实施方案中,组合物显示n型半导体性质。 在优选的实施方案中,x为0.1至0.3,m为10至18.可通过向反应容器中加入化学计量量的包含Ag,M,M'和Q的起始材料来合成组合物,加热原料 达到足以熔化材料的温度和一段时间,并以受控的冷却速度冷却反应产物。
摘要:
A process for producing bulk thermoelectric compositions containing nanoscale inclusions is described. The thermoelectric compositions have a higher figure of merit (ZT) than without the inclusions. The compositions are useful for power generation and in heat pumps for instance.
摘要:
Phase-change compounds, and optical storage recording media, for recording and/or storage of data, comprising such compounds, according to the formula XSbySz; wherein X is selected from the group consisting of K, Rb, Ti, Na, Li, Cs and mixtures thereof; and wherein y is about 1 or about 5, and z is about 1 or about B. Preferably, X is K, y is 5 and z is B. Also provided are optical recording media comprising a layer of the phase-change material and methods of creating a reversible phasechange by irradiating the material with a laser radiation.
摘要:
Chalcogenide compounds with cation exchange capability and methods of using the compounds are described. Compounds of the general formula A2xMxSn3-xS6 are described wherein x is 0.1-0.95, A is Li+, Na+, K+ or Rb+ and M is Mn2+, Mg2+, Zn2+, Fe2+, Co2+ or Ni2+. Compounds of the general formula H2xMxSn3-xS6 are also described wherein x is 0.1-0.95 and M=Mn2+, Mg2+, Zn2+, Fe2+, Co2+ or Ni2+. The compounds can be layered compounds. The compounds are capable of intercalation of Cs+, Sr2+, Hg2+, Pb2+, Cd2+, and/or Ag+ ions. A process involving contacting the compounds with a solution comprising one or more ions including Cs+, Sr2+, Hg2+, Pb2+, Cd2+, and/or Ag+ is also provided. The one or more ions can be removed from the solution by the compounds. A process comprising contacting compounds of the general formula A2xMxSn3-xS6 with a solution containing UO22+, Th4+ or Pu4+ ions is also described.