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Title: Thermoelectric materials having porosity

Abstract

A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi.sub.1-xSb.sub.x).sub.u(Te.sub.1-ySe.sub.y).sub.w, wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, 1.8.ltoreq.u.ltoreq.2.2, 2.8.ltoreq.w.ltoreq.3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.

Inventors:
; ; ;
Issue Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1150014
Patent Number(s):
8,795,545
Application Number:
13/436,521
Assignee:
ZT Plus (Azusa, CA); The Ohio State University (Columbus, OH)
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Mar 30
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Heremans, Joseph P., Jaworski, Christopher M., Jovovic, Vladimir, and Harris, Fred. Thermoelectric materials having porosity. United States: N. p., 2014. Web.
Heremans, Joseph P., Jaworski, Christopher M., Jovovic, Vladimir, & Harris, Fred. Thermoelectric materials having porosity. United States.
Heremans, Joseph P., Jaworski, Christopher M., Jovovic, Vladimir, and Harris, Fred. Tue . "Thermoelectric materials having porosity". United States. https://www.osti.gov/servlets/purl/1150014.
@article{osti_1150014,
title = {Thermoelectric materials having porosity},
author = {Heremans, Joseph P. and Jaworski, Christopher M. and Jovovic, Vladimir and Harris, Fred},
abstractNote = {A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi.sub.1-xSb.sub.x).sub.u(Te.sub.1-ySe.sub.y).sub.w, wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, 1.8.ltoreq.u.ltoreq.2.2, 2.8.ltoreq.w.ltoreq.3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {8}
}

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