Stabilized copper selenide thermoelectric materials and methods of fabrication thereof

Poudeu-Poudeu, Pierre Ferdinand; Olvera, Alan

Title: Stabilized copper selenide thermoelectric materials and methods of fabrication thereof

Patent · Tue Oct 25 00:00:00 EDT 2022

OSTI ID:1986725

Poudeu-Poudeu, Pierre Ferdinand; Olvera, Alan

A thermoelectric composition is provided that includes a nanocomposite comprising a copper selenide (Cu₂Se) matrix having a plurality of nanoinclusions comprising copper metal selenide (CuMSe₂) distributed therein. M may be selected from the group consisting of: indium (In), aluminum (Al), gallium (Ga), antimony (Sb), bismuth (Bi), and combinations thereof. The thermoelectric composition has an average figure of merit (ZT) of greater than or equal to about 1.5 at a temperature of less than or equal to about 850K (about 577° C.). Methods of making such a thermoelectric nanocomposite material by a sequential solid-state transformation of a CuSe2 precursor are also provided.

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Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: SC0008574

Assignee:: The Regents of the University of Michigan (Ann Arbor, MI)

Patent Number(s):: 11,482,654

Application Number:: 17/075,340

OSTI ID:: 1986725

Resource Relation:: Patent File Date: 10/20/2020

Country of Publication:: United States

Language:: English

References (15)

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