Thermoelectric properties of pulsed electric current sintered samples of AgPb m SbSe 17 (m = 16 or 17)

Chun I. Wu, Ilyia Todorov, Mercouri G Kanatzidis, Edward Timm, Eldon D. Case, Harold Schock, Timothy P. Hogan

Research output: Contribution to journalArticle

Abstract

Lead chalcogenide materials have drawn attention in recent years because of their outstanding thermoelectric properties. Bulk n-type materials of AgPb m SbTe 2+m have been reported to exhibit high figure of merit, ZT, as high as 1.7 at 700 K. Recent reports have shown p-type lead selenide-based compounds with comparable ZT. The analogous material AgPb m SbSe 17 shares a similar cubic rock-salt structure with PbTe-based compounds; however, it exhibits a higher melting point, and selenium is more abundant than tellurium. Using solid solution chemistry, we have fabricated cast AgPb 15SbSe 17 samples that show a peak power factor of approximately 17 μW/cm K 2 at 450 K. Increasing the strength of such materials is commonly achieved through powder processing, which also helps to homogenize the source materials. Pulsed electric current sintering (PECS) is a hot-pressing technique that utilizes electric current through the die and sample for direct Joule heating during pressing. The mechanisms present during PECS processing have captured significant research interest and have led to some notable improvements in sample properties compared with other densification techniques. We report the thermoelectric properties of PECS samples of AgPb m SbSe 17 along with sample fabrication and processing details.

Original languageEnglish
Pages (from-to)1579-1582
Number of pages4
JournalJournal of Electronic Materials
Volume41
Issue number6
DOIs
Publication statusPublished - Jun 2012

Fingerprint

Electric currents
electric current
Spark plasma sintering
sintering
Processing
Lead
Tellurium
lead selenides
Joule heating
Selenium
Hot pressing
Densification
halites
Powders
hot pressing
Strength of materials
Melting point
Solid solutions
tellurium
pressing

Keywords

  • lead chalcogenide
  • pulsed electric current sintering
  • Thermoelectric materials

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Thermoelectric properties of pulsed electric current sintered samples of AgPb m SbSe 17 (m = 16 or 17). / Wu, Chun I.; Todorov, Ilyia; Kanatzidis, Mercouri G; Timm, Edward; Case, Eldon D.; Schock, Harold; Hogan, Timothy P.

In: Journal of Electronic Materials, Vol. 41, No. 6, 06.2012, p. 1579-1582.

Research output: Contribution to journalArticle

Wu, Chun I. ; Todorov, Ilyia ; Kanatzidis, Mercouri G ; Timm, Edward ; Case, Eldon D. ; Schock, Harold ; Hogan, Timothy P. / Thermoelectric properties of pulsed electric current sintered samples of AgPb m SbSe 17 (m = 16 or 17). In: Journal of Electronic Materials. 2012 ; Vol. 41, No. 6. pp. 1579-1582.
@article{d218b791016f4c2cbe43d62feaba346c,
title = "Thermoelectric properties of pulsed electric current sintered samples of AgPb m SbSe 17 (m = 16 or 17)",
abstract = "Lead chalcogenide materials have drawn attention in recent years because of their outstanding thermoelectric properties. Bulk n-type materials of AgPb m SbTe 2+m have been reported to exhibit high figure of merit, ZT, as high as 1.7 at 700 K. Recent reports have shown p-type lead selenide-based compounds with comparable ZT. The analogous material AgPb m SbSe 17 shares a similar cubic rock-salt structure with PbTe-based compounds; however, it exhibits a higher melting point, and selenium is more abundant than tellurium. Using solid solution chemistry, we have fabricated cast AgPb 15SbSe 17 samples that show a peak power factor of approximately 17 μW/cm K 2 at 450 K. Increasing the strength of such materials is commonly achieved through powder processing, which also helps to homogenize the source materials. Pulsed electric current sintering (PECS) is a hot-pressing technique that utilizes electric current through the die and sample for direct Joule heating during pressing. The mechanisms present during PECS processing have captured significant research interest and have led to some notable improvements in sample properties compared with other densification techniques. We report the thermoelectric properties of PECS samples of AgPb m SbSe 17 along with sample fabrication and processing details.",
keywords = "lead chalcogenide, pulsed electric current sintering, Thermoelectric materials",
author = "Wu, {Chun I.} and Ilyia Todorov and Kanatzidis, {Mercouri G} and Edward Timm and Case, {Eldon D.} and Harold Schock and Hogan, {Timothy P.}",
year = "2012",
month = "6",
doi = "10.1007/s11664-011-1845-0",
language = "English",
volume = "41",
pages = "1579--1582",
journal = "Journal of Electronic Materials",
issn = "0361-5235",
publisher = "Springer New York",
number = "6",

}

TY - JOUR

T1 - Thermoelectric properties of pulsed electric current sintered samples of AgPb m SbSe 17 (m = 16 or 17)

AU - Wu, Chun I.

AU - Todorov, Ilyia

AU - Kanatzidis, Mercouri G

AU - Timm, Edward

AU - Case, Eldon D.

AU - Schock, Harold

AU - Hogan, Timothy P.

PY - 2012/6

Y1 - 2012/6

N2 - Lead chalcogenide materials have drawn attention in recent years because of their outstanding thermoelectric properties. Bulk n-type materials of AgPb m SbTe 2+m have been reported to exhibit high figure of merit, ZT, as high as 1.7 at 700 K. Recent reports have shown p-type lead selenide-based compounds with comparable ZT. The analogous material AgPb m SbSe 17 shares a similar cubic rock-salt structure with PbTe-based compounds; however, it exhibits a higher melting point, and selenium is more abundant than tellurium. Using solid solution chemistry, we have fabricated cast AgPb 15SbSe 17 samples that show a peak power factor of approximately 17 μW/cm K 2 at 450 K. Increasing the strength of such materials is commonly achieved through powder processing, which also helps to homogenize the source materials. Pulsed electric current sintering (PECS) is a hot-pressing technique that utilizes electric current through the die and sample for direct Joule heating during pressing. The mechanisms present during PECS processing have captured significant research interest and have led to some notable improvements in sample properties compared with other densification techniques. We report the thermoelectric properties of PECS samples of AgPb m SbSe 17 along with sample fabrication and processing details.

AB - Lead chalcogenide materials have drawn attention in recent years because of their outstanding thermoelectric properties. Bulk n-type materials of AgPb m SbTe 2+m have been reported to exhibit high figure of merit, ZT, as high as 1.7 at 700 K. Recent reports have shown p-type lead selenide-based compounds with comparable ZT. The analogous material AgPb m SbSe 17 shares a similar cubic rock-salt structure with PbTe-based compounds; however, it exhibits a higher melting point, and selenium is more abundant than tellurium. Using solid solution chemistry, we have fabricated cast AgPb 15SbSe 17 samples that show a peak power factor of approximately 17 μW/cm K 2 at 450 K. Increasing the strength of such materials is commonly achieved through powder processing, which also helps to homogenize the source materials. Pulsed electric current sintering (PECS) is a hot-pressing technique that utilizes electric current through the die and sample for direct Joule heating during pressing. The mechanisms present during PECS processing have captured significant research interest and have led to some notable improvements in sample properties compared with other densification techniques. We report the thermoelectric properties of PECS samples of AgPb m SbSe 17 along with sample fabrication and processing details.

KW - lead chalcogenide

KW - pulsed electric current sintering

KW - Thermoelectric materials

UR - http://www.scopus.com/inward/record.url?scp=84862214884&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862214884&partnerID=8YFLogxK

U2 - 10.1007/s11664-011-1845-0

DO - 10.1007/s11664-011-1845-0

M3 - Article

VL - 41

SP - 1579

EP - 1582

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

SN - 0361-5235

IS - 6

ER -