P-type thermoelectric materials, a process for their manufacture and uses thereof
US8524106B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 13, 2011 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Jul 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N10/853
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A thermoelectric material of the p-type having the stoichiometric formula Zn4Sb3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprising Sn, Mg, Pb and the transition metals in a total amount of 20 mol % or less in relation to the Zn atoms is provided by a process involving zone-melting of a an arrangement comprising an interphase between a “stoichiometric” material having the desired composition and a “non-stoichiometric” material having a composition deviating from the desired composition. The thermoelectric materials obtained exhibit excellent figure of merits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.