Improved thermoelectric properties in LU-doped Yb 14mnsb 11Zintl compounds

Cui Yu; Yi Chen; Hanhui Xie; G. Jeffrey Snyder; Chenguang Fu; Jinshu Xu; Xinbing Zhao; Tiejun Zhu

doi:10.1143/APEX.5.031801

Improved thermoelectric properties in LU-doped Yb ₁₄mnsb ₁₁Zintl compounds

Cui Yu, Yi Chen, Hanhui Xie, G. Jeffrey Snyder, Chenguang Fu, Jinshu Xu, Xinbing Zhao, Tiejun Zhu^*

^*Corresponding author for this work

Materials Science and Engineering

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

33 Scopus citations

Abstract

The thermoelectric transport properties of Lu-doped ₁₄MnSb ₁₁ Zintl compounds have been investigated. The electrical conductivity increased and the Seebeck coefficient decreased with increasing Lu doping content, due to an increased carrier concentration. The carrier mobility behavior was in good accordance with the single parabolic band model. It is suggested that Lu doping simply shifts the Fermi energy with the band structure minimally altered. The lattice thermal conductivity roughly decreased via Lu doping. The maximum dimensionless figure of merit ZT of the Ludoped samples was improved by ∼30% at 670 K, compared with that without doping.

Original language	English (US)
Article number	031801
Journal	Applied Physics Express
Volume	5
Issue number	3
DOIs	https://doi.org/10.1143/APEX.5.031801
State	Published - Mar 2012

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

Access to Document

10.1143/APEX.5.031801

Cite this

@article{8441aee51eed4e1cb8da231334786422,

title = "Improved thermoelectric properties in LU-doped Yb 14mnsb 11Zintl compounds",

abstract = "The thermoelectric transport properties of Lu-doped 14MnSb 11 Zintl compounds have been investigated. The electrical conductivity increased and the Seebeck coefficient decreased with increasing Lu doping content, due to an increased carrier concentration. The carrier mobility behavior was in good accordance with the single parabolic band model. It is suggested that Lu doping simply shifts the Fermi energy with the band structure minimally altered. The lattice thermal conductivity roughly decreased via Lu doping. The maximum dimensionless figure of merit ZT of the Ludoped samples was improved by ∼30% at 670 K, compared with that without doping.",

author = "Cui Yu and Yi Chen and Hanhui Xie and Snyder, {G. Jeffrey} and Chenguang Fu and Jinshu Xu and Xinbing Zhao and Tiejun Zhu",

year = "2012",

month = mar,

doi = "10.1143/APEX.5.031801",

language = "English (US)",

volume = "5",

journal = "Applied Physics Express",

issn = "1882-0778",

publisher = "Japan Society of Applied Physics",

number = "3",

}

TY - JOUR

T1 - Improved thermoelectric properties in LU-doped Yb 14mnsb 11Zintl compounds

AU - Yu, Cui

AU - Chen, Yi

AU - Xie, Hanhui

AU - Snyder, G. Jeffrey

AU - Fu, Chenguang

AU - Xu, Jinshu

AU - Zhao, Xinbing

AU - Zhu, Tiejun

PY - 2012/3

Y1 - 2012/3

N2 - The thermoelectric transport properties of Lu-doped 14MnSb 11 Zintl compounds have been investigated. The electrical conductivity increased and the Seebeck coefficient decreased with increasing Lu doping content, due to an increased carrier concentration. The carrier mobility behavior was in good accordance with the single parabolic band model. It is suggested that Lu doping simply shifts the Fermi energy with the band structure minimally altered. The lattice thermal conductivity roughly decreased via Lu doping. The maximum dimensionless figure of merit ZT of the Ludoped samples was improved by ∼30% at 670 K, compared with that without doping.

AB - The thermoelectric transport properties of Lu-doped 14MnSb 11 Zintl compounds have been investigated. The electrical conductivity increased and the Seebeck coefficient decreased with increasing Lu doping content, due to an increased carrier concentration. The carrier mobility behavior was in good accordance with the single parabolic band model. It is suggested that Lu doping simply shifts the Fermi energy with the band structure minimally altered. The lattice thermal conductivity roughly decreased via Lu doping. The maximum dimensionless figure of merit ZT of the Ludoped samples was improved by ∼30% at 670 K, compared with that without doping.

UR - http://www.scopus.com/inward/record.url?scp=84863374432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863374432&partnerID=8YFLogxK

U2 - 10.1143/APEX.5.031801

DO - 10.1143/APEX.5.031801

M3 - Article

AN - SCOPUS:84863374432

SN - 1882-0778

VL - 5

JO - Applied Physics Express

JF - Applied Physics Express

IS - 3

M1 - 031801

ER -

Improved thermoelectric properties in LU-doped Yb ₁₄mnsb ₁₁Zintl compounds

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this