Effects of Se doping on thermoelectric properties of Zn4Sb3 at low-temperatures

L. Pan; X. Y. Qin; M. Liu

doi:10.1016/j.solidstatesciences.2009.11.003

Effects of Se doping on thermoelectric properties of Zn₄Sb₃ at low-temperatures

L. Pan, X. Y. Qin, M. Liu

CAS - Institute of Solid State Physics

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

16 Scopus citations

Abstract

The thermoelectric properties of Se-doped compounds Zn₄(Sb_1-xSe_x)₃ (x = 0, 0.005, 0.01, 0.015) have been studied. The results indicate that low-temperature (T < 300 K) thermal conductivity of moderately doped Zn₄(Sb_0.99Se_0.01)₃ reduce remarkably as compared with that of Zn₄Sb₃ due to enhanced impurity (dopant) scattering of phonons. Electrical resistivity and Seebeck coefficient are found to increase and then decrease moderately with the increase in the Se content. Moreover, the lightly doped compound Zn₄(Sb_0.99Se_0.01)₃ exhibits the best thermoelectric performance due to the improvement in both its thermal conductivity and Seebeck coefficient. Its figure of merit, ZT, is about 1.3 times larger than that of pure Zn₄Sb₃ at 300 K.

Original language	English
Pages (from-to)	257-261
Number of pages	5
Journal	Solid State Sciences
Volume	12
Issue number	2
DOIs	https://doi.org/10.1016/j.solidstatesciences.2009.11.003
State	Published - Feb 2010
Externally published	Yes

Keywords

Hot-pressing
Semiconductors
Thermoelectric

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10.1016/j.solidstatesciences.2009.11.003

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title = "Effects of Se doping on thermoelectric properties of Zn4Sb3 at low-temperatures",

abstract = "The thermoelectric properties of Se-doped compounds Zn4(Sb1-xSex)3 (x = 0, 0.005, 0.01, 0.015) have been studied. The results indicate that low-temperature (T < 300 K) thermal conductivity of moderately doped Zn4(Sb0.99Se0.01)3 reduce remarkably as compared with that of Zn4Sb3 due to enhanced impurity (dopant) scattering of phonons. Electrical resistivity and Seebeck coefficient are found to increase and then decrease moderately with the increase in the Se content. Moreover, the lightly doped compound Zn4(Sb0.99Se0.01)3 exhibits the best thermoelectric performance due to the improvement in both its thermal conductivity and Seebeck coefficient. Its figure of merit, ZT, is about 1.3 times larger than that of pure Zn4Sb3 at 300 K.",

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author = "L. Pan and Qin, {X. Y.} and M. Liu",

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TY - JOUR

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AU - Pan, L.

AU - Qin, X. Y.

AU - Liu, M.

PY - 2010/2

Y1 - 2010/2

N2 - The thermoelectric properties of Se-doped compounds Zn4(Sb1-xSex)3 (x = 0, 0.005, 0.01, 0.015) have been studied. The results indicate that low-temperature (T < 300 K) thermal conductivity of moderately doped Zn4(Sb0.99Se0.01)3 reduce remarkably as compared with that of Zn4Sb3 due to enhanced impurity (dopant) scattering of phonons. Electrical resistivity and Seebeck coefficient are found to increase and then decrease moderately with the increase in the Se content. Moreover, the lightly doped compound Zn4(Sb0.99Se0.01)3 exhibits the best thermoelectric performance due to the improvement in both its thermal conductivity and Seebeck coefficient. Its figure of merit, ZT, is about 1.3 times larger than that of pure Zn4Sb3 at 300 K.

AB - The thermoelectric properties of Se-doped compounds Zn4(Sb1-xSex)3 (x = 0, 0.005, 0.01, 0.015) have been studied. The results indicate that low-temperature (T < 300 K) thermal conductivity of moderately doped Zn4(Sb0.99Se0.01)3 reduce remarkably as compared with that of Zn4Sb3 due to enhanced impurity (dopant) scattering of phonons. Electrical resistivity and Seebeck coefficient are found to increase and then decrease moderately with the increase in the Se content. Moreover, the lightly doped compound Zn4(Sb0.99Se0.01)3 exhibits the best thermoelectric performance due to the improvement in both its thermal conductivity and Seebeck coefficient. Its figure of merit, ZT, is about 1.3 times larger than that of pure Zn4Sb3 at 300 K.

KW - Hot-pressing

KW - Semiconductors

KW - Thermoelectric

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DO - 10.1016/j.solidstatesciences.2009.11.003

M3 - 文章

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SN - 1293-2558

VL - 12

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EP - 261

JO - Solid State Sciences

JF - Solid State Sciences

IS - 2

ER -

Effects of Se doping on thermoelectric properties of Zn₄Sb₃ at low-temperatures

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Keywords

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