Thermoelectric properties of two ternary tellurides

Jeff W. Sharp; Brian C. Sales; David G. Mandrus; Bryan C. Chakoumakos

Thermoelectric properties of two ternary tellurides

Jeff W. Sharp, Brian C. Sales, David G. Mandrus, Bryan C. Chakoumakos

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We present initial assessments of the thermoelectric properties of two ternary tellurides with known crystal structures, Tl₂GeTe₅ and Tl₂SnTe₅. Tl₂SnTe₅ appears to have a p-type figure of merit about the same as that of Bi₂Te₃, the best thermoelectric material among binary compounds. A good figure of merit is possible because the lattice thermal conductivity is very low. Based on neutron diffraction data, we have calculated atomic displacement parameters and thermal expansion coefficients. The atomic displacement parameters give some understanding of the low lattice thermal conductivity.

Original language	English
Pages (from-to)	391-396
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	545
State	Published - 1999
Externally published	Yes
Event	Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA Duration: Nov 30 1998 → Dec 3 1998

Cite this

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title = "Thermoelectric properties of two ternary tellurides",

abstract = "We present initial assessments of the thermoelectric properties of two ternary tellurides with known crystal structures, Tl2GeTe5 and Tl2SnTe5. Tl2SnTe5 appears to have a p-type figure of merit about the same as that of Bi2Te3, the best thermoelectric material among binary compounds. A good figure of merit is possible because the lattice thermal conductivity is very low. Based on neutron diffraction data, we have calculated atomic displacement parameters and thermal expansion coefficients. The atomic displacement parameters give some understanding of the low lattice thermal conductivity.",

author = "Sharp, {Jeff W.} and Sales, {Brian C.} and Mandrus, {David G.} and Chakoumakos, {Bryan C.}",

year = "1999",

language = "English",

volume = "545",

pages = "391--396",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' ; Conference date: 30-11-1998 Through 03-12-1998",

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TY - JOUR

T1 - Thermoelectric properties of two ternary tellurides

AU - Sharp, Jeff W.

AU - Sales, Brian C.

AU - Mandrus, David G.

AU - Chakoumakos, Bryan C.

PY - 1999

Y1 - 1999

N2 - We present initial assessments of the thermoelectric properties of two ternary tellurides with known crystal structures, Tl2GeTe5 and Tl2SnTe5. Tl2SnTe5 appears to have a p-type figure of merit about the same as that of Bi2Te3, the best thermoelectric material among binary compounds. A good figure of merit is possible because the lattice thermal conductivity is very low. Based on neutron diffraction data, we have calculated atomic displacement parameters and thermal expansion coefficients. The atomic displacement parameters give some understanding of the low lattice thermal conductivity.

AB - We present initial assessments of the thermoelectric properties of two ternary tellurides with known crystal structures, Tl2GeTe5 and Tl2SnTe5. Tl2SnTe5 appears to have a p-type figure of merit about the same as that of Bi2Te3, the best thermoelectric material among binary compounds. A good figure of merit is possible because the lattice thermal conductivity is very low. Based on neutron diffraction data, we have calculated atomic displacement parameters and thermal expansion coefficients. The atomic displacement parameters give some understanding of the low lattice thermal conductivity.

UR - http://www.scopus.com/inward/record.url?scp=0032591197&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0032591197

SN - 0272-9172

VL - 545

SP - 391

EP - 396

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998'

Y2 - 30 November 1998 through 3 December 1998

ER -

Thermoelectric properties of two ternary tellurides

Abstract

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