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PbTe-based thermoelectric nanocomposites with reduced thermal conductivity by SiC nanodispersion

For further thermoelectric performance enhancement by the nanocomposite effect, a small amount (

Journal Title: Applied Physics Letters 17 March 2014, Vol.104(11)
Main Author: Li, Zong-Yue
Other Authors: Li, Jing-Feng , Zhao, Wen-Yang , Tan, Qing , Wei, Tian-Ran , Wu, Chao-Feng , Xing, Zhi-Bo
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0003-6951 ; E-ISSN: 1077-3118 ; DOI: 10.1063/1.4869220
Link: http://dx.doi.org/10.1063/1.4869220
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recordid: aip_complete10.1063/1.4869220
title: PbTe-based thermoelectric nanocomposites with reduced thermal conductivity by SiC nanodispersion
format: Article
creator:
  • Li, Zong-Yue
  • Li, Jing-Feng
  • Zhao, Wen-Yang
  • Tan, Qing
  • Wei, Tian-Ran
  • Wu, Chao-Feng
  • Xing, Zhi-Bo
subjects:
  • Energy Conversion And Storage
ispartof: Applied Physics Letters, 17 March 2014, Vol.104(11)
description: For further thermoelectric performance enhancement by the nanocomposite effect, a small amount (
language: eng
source:
identifier: ISSN: 0003-6951 ; E-ISSN: 1077-3118 ; DOI: 10.1063/1.4869220
fulltext: fulltext
issn:
  • 0003-6951
  • 1077-3118
  • 00036951
  • 10773118
url: Link


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titlePbTe-based thermoelectric nanocomposites with reduced thermal conductivity by SiC nanodispersion
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descriptionFor further thermoelectric performance enhancement by the nanocomposite effect, a small amount (<2 vol. %) of 30 nm SiC particles were added into a compositionally optimized AgPb m SbTe m+2 thermoelectric alloy fabricated by mechanical alloying and spark plasma sintering. Although the energy filtering effect is not available in the present composite due to the mismatched interface between SiC and the matrix, a small amount of SiC dispersions were revealed to be effective to reduce the thermal conductivity via enhancing phonon scattering. A high figure of merit up to 1.54 at 723 K was obtained in the AgPb m SbTe m+2 matrix composite containing 1 vol. % SiC nanoparticles.
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descriptionFor further thermoelectric performance enhancement by the nanocomposite effect, a small amount (<2 vol. %) of 30 nm SiC particles were added into a compositionally optimized AgPb m SbTe m+2 thermoelectric alloy fabricated by mechanical alloying and spark plasma sintering. Although the energy filtering effect is not available in the present composite due to the mismatched interface between SiC and the matrix, a small amount of SiC dispersions were revealed to be effective to reduce the thermal conductivity via enhancing phonon scattering. A high figure of merit up to 1.54 at 723 K was obtained in the AgPb m SbTe m+2 matrix composite containing 1 vol. % SiC nanoparticles.
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titlePbTe-based thermoelectric nanocomposites with reduced thermal conductivity by SiC nanodispersion
authorLi, Zong-Yue ; Li, Jing-Feng ; Zhao, Wen-Yang ; Tan, Qing ; Wei, Tian-Ran ; Wu, Chao-Feng ; Xing, Zhi-Bo
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abstractFor further thermoelectric performance enhancement by the nanocomposite effect, a small amount (<2 vol. %) of 30 nm SiC particles were added into a compositionally optimized AgPb m SbTe m+2 thermoelectric alloy fabricated by mechanical alloying and spark plasma sintering. Although the energy filtering effect is not available in the present composite due to the mismatched interface between SiC and the matrix, a small amount of SiC dispersions were revealed to be effective to reduce the thermal conductivity via enhancing phonon scattering. A high figure of merit up to 1.54 at 723 K was obtained in the AgPb m SbTe m+2 matrix composite containing 1 vol. % SiC nanoparticles.
pubAmerican Institute of Physics
doi10.1063/1.4869220
date2014-03-17