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Phonon scattering through a local anisotropic structural disorder in the thermoelectric solid solution Cu2Zn(1-x)Fe(x)GeSe4

Inspired by the promising thermoelectric properties of chalcopyrite-like quaternary chalcogenides, here we describe the synthesis and characterization of the solid solution Cu(2)Zn(1-x)Fe(x)GeSe(4). Upon substitution of Zn with the isoelectronic Fe, no charge carriers are introduced in these intrins... Full description

Journal Title: Journal of the American Chemical Society 16 January 2013, Vol.135(2), pp.726-32
Main Author: Zeier, Wolfgang G
Other Authors: Pei, Yanzhong , Pomrehn, Gregory , Day, Tristan , Heinz, Nicholas , Heinrich, Christophe P , Snyder, G Jeffrey , Tremel, Wolfgang
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1520-5126 ; PMID: 23256607 Version:1 ; DOI: 10.1021/ja308627v
Link: http://pubmed.gov/23256607
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recordid: medline23256607
title: Phonon scattering through a local anisotropic structural disorder in the thermoelectric solid solution Cu2Zn(1-x)Fe(x)GeSe4
format: Article
creator:
  • Zeier, Wolfgang G
  • Pei, Yanzhong
  • Pomrehn, Gregory
  • Day, Tristan
  • Heinz, Nicholas
  • Heinrich, Christophe P
  • Snyder, G Jeffrey
  • Tremel, Wolfgang
subjects:
  • Chemistry
ispartof: Journal of the American Chemical Society, 16 January 2013, Vol.135(2), pp.726-32
description: Inspired by the promising thermoelectric properties of chalcopyrite-like quaternary chalcogenides, here we describe the synthesis and characterization of the solid solution Cu(2)Zn(1-x)Fe(x)GeSe(4). Upon substitution of Zn with the isoelectronic Fe, no charge carriers are introduced in these intrinsic semiconductors. However, a change in lattice parameters, expressed in an elongation of the c/a lattice parameter ratio with minimal change in unit cell volume, reveals the existence of a three-stage cation restructuring process of Cu, Zn, and Fe. The resulting local anisotropic structural disorder leads to phonon scattering not normally observed, resulting in an effective approach to reduce the lattice thermal conductivity in this class of materials.
language: eng
source:
identifier: E-ISSN: 1520-5126 ; PMID: 23256607 Version:1 ; DOI: 10.1021/ja308627v
fulltext: fulltext
issn:
  • 15205126
  • 1520-5126
url: Link


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titlePhonon scattering through a local anisotropic structural disorder in the thermoelectric solid solution Cu2Zn(1-x)Fe(x)GeSe4
creatorZeier, Wolfgang G ; Pei, Yanzhong ; Pomrehn, Gregory ; Day, Tristan ; Heinz, Nicholas ; Heinrich, Christophe P ; Snyder, G Jeffrey ; Tremel, Wolfgang
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descriptionInspired by the promising thermoelectric properties of chalcopyrite-like quaternary chalcogenides, here we describe the synthesis and characterization of the solid solution Cu(2)Zn(1-x)Fe(x)GeSe(4). Upon substitution of Zn with the isoelectronic Fe, no charge carriers are introduced in these intrinsic semiconductors. However, a change in lattice parameters, expressed in an elongation of the c/a lattice parameter ratio with minimal change in unit cell volume, reveals the existence of a three-stage cation restructuring process of Cu, Zn, and Fe. The resulting local anisotropic structural disorder leads to phonon scattering not normally observed, resulting in an effective approach to reduce the lattice thermal conductivity in this class of materials.
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titlePhonon scattering through a local anisotropic structural disorder in the thermoelectric solid solution Cu2Zn(1-x)Fe(x)GeSe4
descriptionInspired by the promising thermoelectric properties of chalcopyrite-like quaternary chalcogenides, here we describe the synthesis and characterization of the solid solution Cu(2)Zn(1-x)Fe(x)GeSe(4). Upon substitution of Zn with the isoelectronic Fe, no charge carriers are introduced in these intrinsic semiconductors. However, a change in lattice parameters, expressed in an elongation of the c/a lattice parameter ratio with minimal change in unit cell volume, reveals the existence of a three-stage cation restructuring process of Cu, Zn, and Fe. The resulting local anisotropic structural disorder leads to phonon scattering not normally observed, resulting in an effective approach to reduce the lattice thermal conductivity in this class of materials.
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titlePhonon scattering through a local anisotropic structural disorder in the thermoelectric solid solution Cu2Zn(1-x)Fe(x)GeSe4
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abstractInspired by the promising thermoelectric properties of chalcopyrite-like quaternary chalcogenides, here we describe the synthesis and characterization of the solid solution Cu(2)Zn(1-x)Fe(x)GeSe(4). Upon substitution of Zn with the isoelectronic Fe, no charge carriers are introduced in these intrinsic semiconductors. However, a change in lattice parameters, expressed in an elongation of the c/a lattice parameter ratio with minimal change in unit cell volume, reveals the existence of a three-stage cation restructuring process of Cu, Zn, and Fe. The resulting local anisotropic structural disorder leads to phonon scattering not normally observed, resulting in an effective approach to reduce the lattice thermal conductivity in this class of materials.
doi10.1021/ja308627v
pmid23256607
date2013-01-16