Thermoelectric transport properties of tetradymite-type Pb1-xSnxBi2Te4compounds

Jang Yeul Tak; Young Soo Lim; Jae Nyeong Kim; Changhoon Lee; Ji Hoon Shim; Hyung Koun Cho; Cheol Hee Park; Won Seon Seo

doi:10.1016/j.jallcom.2016.08.196

Thermoelectric transport properties of tetradymite-type Pb_1-xSn_xBi₂Te₄compounds

Jang Yeul Tak
, Young Soo Lim
, Jae Nyeong Kim
, Changhoon Lee
, Ji Hoon Shim
, Hyung Koun Cho
, Cheol Hee Park
, Won Seon Seo

Department of Advanced Materials Science and Engineering

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

10 Scopus citations

Abstract

We report thermoelectric transport properties of Pb_1-xSn_xBi₂Te₄(x = 0, 0.25, 0.5, 0.75 and 1) compounds. They exhibited n-type conduction behavior up to x = 0.5, while it changed to p-type due to the explosive hole generation at relatively high Sn contents. Their complicated charge transport behavior was interpreted by high-temperature Hall measurements and also by the first-principles calculation based on Boltzmann transport equation. Effects of the Sn content on the density of state (DOS) effective mass was investigated, and its relation to the observed Seebeck coefficients and power factors of the compounds has been explained.

Original language	English
Pages (from-to)	966-970
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	690
DOIs	https://doi.org/10.1016/j.jallcom.2016.08.196
State	Published - 2017

Keywords

Charge transport
Seebeck coefficient
Sintering
Tetradymite
Thermoelectric

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10.1016/j.jallcom.2016.08.196

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title = "Thermoelectric transport properties of tetradymite-type Pb1-xSnxBi2Te4compounds",

abstract = "We report thermoelectric transport properties of Pb1-xSnxBi2Te4(x = 0, 0.25, 0.5, 0.75 and 1) compounds. They exhibited n-type conduction behavior up to x = 0.5, while it changed to p-type due to the explosive hole generation at relatively high Sn contents. Their complicated charge transport behavior was interpreted by high-temperature Hall measurements and also by the first-principles calculation based on Boltzmann transport equation. Effects of the Sn content on the density of state (DOS) effective mass was investigated, and its relation to the observed Seebeck coefficients and power factors of the compounds has been explained.",

keywords = "Charge transport, Seebeck coefficient, Sintering, Tetradymite, Thermoelectric",

author = "Tak, \{Jang Yeul\} and Lim, \{Young Soo\} and Kim, \{Jae Nyeong\} and Changhoon Lee and Shim, \{Ji Hoon\} and Cho, \{Hyung Koun\} and Park, \{Cheol Hee\} and Seo, \{Won Seon\}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jallcom.2016.08.196",

language = "English",

volume = "690",

pages = "966--970",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Thermoelectric transport properties of tetradymite-type Pb1-xSnxBi2Te4compounds

AU - Tak, Jang Yeul

AU - Lim, Young Soo

AU - Kim, Jae Nyeong

AU - Lee, Changhoon

AU - Shim, Ji Hoon

AU - Cho, Hyung Koun

AU - Park, Cheol Hee

AU - Seo, Won Seon

PY - 2017

Y1 - 2017

N2 - We report thermoelectric transport properties of Pb1-xSnxBi2Te4(x = 0, 0.25, 0.5, 0.75 and 1) compounds. They exhibited n-type conduction behavior up to x = 0.5, while it changed to p-type due to the explosive hole generation at relatively high Sn contents. Their complicated charge transport behavior was interpreted by high-temperature Hall measurements and also by the first-principles calculation based on Boltzmann transport equation. Effects of the Sn content on the density of state (DOS) effective mass was investigated, and its relation to the observed Seebeck coefficients and power factors of the compounds has been explained.

AB - We report thermoelectric transport properties of Pb1-xSnxBi2Te4(x = 0, 0.25, 0.5, 0.75 and 1) compounds. They exhibited n-type conduction behavior up to x = 0.5, while it changed to p-type due to the explosive hole generation at relatively high Sn contents. Their complicated charge transport behavior was interpreted by high-temperature Hall measurements and also by the first-principles calculation based on Boltzmann transport equation. Effects of the Sn content on the density of state (DOS) effective mass was investigated, and its relation to the observed Seebeck coefficients and power factors of the compounds has been explained.

KW - Charge transport

KW - Seebeck coefficient

KW - Sintering

KW - Tetradymite

KW - Thermoelectric

UR - https://www.scopus.com/pages/publications/84986275949

U2 - 10.1016/j.jallcom.2016.08.196

DO - 10.1016/j.jallcom.2016.08.196

M3 - Article

AN - SCOPUS:84986275949

SN - 0925-8388

VL - 690

SP - 966

EP - 970

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Thermoelectric transport properties of tetradymite-type Pb_1-xSn_xBi₂Te₄compounds

Abstract

Keywords

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