The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2000
Filed:
Jun. 24, 1998
Theodore C Harman, Lexington, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
A superlattice structure having a relatively high thermoelectric figure of merit and suitable for usage in power generation systems, and in heating and/or cooling applications is described. The superlattice structure includes a first plurality of layers formed from material D.sub.z J.sub.1-z, a second plurality of layers formed from material L.sub.x M.sub.1-x D.sub.z J.sub.1-z and a third plurality of layers formed from material L.sub.x M.sub.1-x D.sub.z J.sub.1-z wherein D is a non-metal chalcogen, and wherein J is a non-metal chalcogen, and wherein L is a group IV metal selected from the group of Pb, Sn, and Ge, and wherein M is a Group IV metal selected from the group of Pb, Sn, and Ge, and wherein D is not the same as J, and wherein L is not the same as M, and wherein 0.ltoreq.x.ltoreq.1 and 0.ltoreq.z.ltoreq.1.