Thermoelectric Properties of the Tetradymite-Type Bi₂Te₂S-Sb₂Te₂S Solid Solution

David C. Grauer; Yew San Hor; Anthony J. Williams; Robert Joseph Cava

doi:10.1016/j.materresbull.2009.05.002

Thermoelectric Properties of the Tetradymite-Type Bi₂Te₂S-Sb₂Te₂S Solid Solution

David C. Grauer
, Yew San Hor
, Anthony J. Williams
, Robert Joseph Cava

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The thermoelectric properties of the tetradymite-type Bi _2-x Sb _x Te ₂ S solid solution (0 ≤ x ≤ 2) are reported for the temperature range 5-300 K. The properties of non-stoichiometric, Cl and Sn doped n- and p-type variants are reported as well. The Seebeck coefficients for these materials range from -170 to +270 μV K ^-1 while the resistivities range from those of semimetals, 2 mΩ cm, to semiconductors, >1000 mΩ cm. Thermal conductivities were low for most compositions, typically 1.5 W m ^-1 K ^-1 . Nominally undoped Bi ₂ Te ₂ S shows the highest thermoelectric efficiency amongst the tested materials with a ZT = 0.26 at 300 K that decreased to 0.04 at 100 K. The crystal structure of Sb ₂ Te ₂ S, a novel tetradymite-type material, is also reported.

Original language	American English
Journal	Materials Research Bulletin
Volume	44
DOIs	https://doi.org/10.1016/j.materresbull.2009.05.002
State	Published - Sep 1 2009

Keywords

Carbon Fiber Reinforced Plastics
Chalcogenides
Crystal Structure
Crystallization
Diffraction
Electric Properties
Electrical Properties
Metalloids
Semiconductivity
Solid Solutions
Solidification
Thermal Conductivity
Thermoanalysis
Thermoelectric Equipment
Tin
X Ray Diffraction

Disciplines

Physics

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https://doi.org/10.1016/j.materresbull.2009.05.002

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@article{2108fdd8ccb749b5864e988bf45819cd,

title = "Thermoelectric Properties of the Tetradymite-Type Bi₂Te₂S-Sb₂Te₂S Solid Solution",

abstract = " The thermoelectric properties of the tetradymite-type Bi 2-x Sb x Te 2 S solid solution (0 ≤ x ≤ 2) are reported for the temperature range 5-300 K. The properties of non-stoichiometric, Cl and Sn doped n- and p-type variants are reported as well. The Seebeck coefficients for these materials range from -170 to +270 μV K -1 while the resistivities range from those of semimetals, 2 mΩ cm, to semiconductors, >1000 mΩ cm. Thermal conductivities were low for most compositions, typically 1.5 W m -1 K -1 . Nominally undoped Bi 2 Te 2 S shows the highest thermoelectric efficiency amongst the tested materials with a ZT = 0.26 at 300 K that decreased to 0.04 at 100 K. The crystal structure of Sb 2 Te 2 S, a novel tetradymite-type material, is also reported.",

keywords = "Carbon Fiber Reinforced Plastics, Chalcogenides, Crystal Structure, Crystallization, Diffraction, Electric Properties, Electrical Properties, Metalloids, Semiconductivity, Solid Solutions, Solidification, Thermal Conductivity, Thermoanalysis, Thermoelectric Equipment, Tin, X Ray Diffraction",

author = "Grauer, \{David C.\} and Hor, \{Yew San\} and Williams, \{Anthony J.\} and Cava, \{Robert Joseph\}",

year = "2009",

month = sep,

day = "1",

doi = "10.1016/j.materresbull.2009.05.002",

language = "American English",

volume = "44",

journal = "Materials Research Bulletin",

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T1 - Thermoelectric Properties of the Tetradymite-Type Bi₂Te₂S-Sb₂Te₂S Solid Solution

AU - Grauer, David C.

AU - Hor, Yew San

AU - Williams, Anthony J.

AU - Cava, Robert Joseph

PY - 2009/9/1

Y1 - 2009/9/1

N2 - The thermoelectric properties of the tetradymite-type Bi 2-x Sb x Te 2 S solid solution (0 ≤ x ≤ 2) are reported for the temperature range 5-300 K. The properties of non-stoichiometric, Cl and Sn doped n- and p-type variants are reported as well. The Seebeck coefficients for these materials range from -170 to +270 μV K -1 while the resistivities range from those of semimetals, 2 mΩ cm, to semiconductors, >1000 mΩ cm. Thermal conductivities were low for most compositions, typically 1.5 W m -1 K -1 . Nominally undoped Bi 2 Te 2 S shows the highest thermoelectric efficiency amongst the tested materials with a ZT = 0.26 at 300 K that decreased to 0.04 at 100 K. The crystal structure of Sb 2 Te 2 S, a novel tetradymite-type material, is also reported.

AB - The thermoelectric properties of the tetradymite-type Bi 2-x Sb x Te 2 S solid solution (0 ≤ x ≤ 2) are reported for the temperature range 5-300 K. The properties of non-stoichiometric, Cl and Sn doped n- and p-type variants are reported as well. The Seebeck coefficients for these materials range from -170 to +270 μV K -1 while the resistivities range from those of semimetals, 2 mΩ cm, to semiconductors, >1000 mΩ cm. Thermal conductivities were low for most compositions, typically 1.5 W m -1 K -1 . Nominally undoped Bi 2 Te 2 S shows the highest thermoelectric efficiency amongst the tested materials with a ZT = 0.26 at 300 K that decreased to 0.04 at 100 K. The crystal structure of Sb 2 Te 2 S, a novel tetradymite-type material, is also reported.

KW - Carbon Fiber Reinforced Plastics

KW - Chalcogenides

KW - Crystal Structure

KW - Crystallization

KW - Diffraction

KW - Electric Properties

KW - Electrical Properties

KW - Metalloids

KW - Semiconductivity

KW - Solid Solutions

KW - Solidification

KW - Thermal Conductivity

KW - Thermoanalysis

KW - Thermoelectric Equipment

KW - Tin

KW - X Ray Diffraction

UR - https://scholarsmine.mst.edu/phys_facwork/673

UR - https://doi.org/10.1016/j.materresbull.2009.05.002

U2 - 10.1016/j.materresbull.2009.05.002

DO - 10.1016/j.materresbull.2009.05.002

M3 - Article

VL - 44

JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Thermoelectric Properties of the Tetradymite-Type Bi₂Te₂S-Sb₂Te₂S Solid Solution

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Keywords

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