n-Type thermoelectric materials
AssigneeNissan Motor Co., Ltd.
InventorsKazuhiko Shinohara, Masakazu Kobayashi, Keiko Ikoma, Fumio Munakata
Life of this patent
Estimating the term…
Abstract
An n-type thermoelectric material composed mainly of an iron-silicite compound represented by a chemical formula of FeSi.sub.2+z in which -0.1<z<0.1. The thermoelectric material further comprising Co as an n-type dopant and Ge as an additive. The iron-silicon compound is composed substantially of a low temperature phase (.beta.-phase).
Claims5
An n-type thermoelectric material composed mainly of an iron-silicon compound represented by a chemical formula of FeSi.sub.2+z in which -0.1<z<0.1, said thermoelectric material further comprising Co as an n-type dopant and Ge as an additional element, said iron-silicon compound being composed substantially of a low temperature phase (.beta.-phase).
A composite body comprising an n-type thermoelectric material and a p-type thermoelectric material joined together, said n-type thermoelectric material being composed mainly of an iron-silicon compound represented by a chemical formula of FeSi.sub.2+z in which -0.1<z<0.1, said thermoelectric material further comprising Co as an n-type dopant and Ge as an additive, said iron-silicon compound being composed substantially of a low temperature phase (.beta.-phase), said p-type thermoelectric material being composed mainly of an iron-silicon compound represented by a chemical formula of FeSi.sub.2+z in which -0.1<z<0.1, said p-type thermoelectric material further comprising a p-type dopant selected from the group consisting of Mn, Cr, Al and Ge.
Dependencies are inferred from the claim text.