Effects of alkaline earth doping on the thermoelectric properties of misfit layer sulfides

Yulia Eka Putri; Chunlei Wan; Yifeng Wang; Wataru Norimatsu; Michiko Kusunoki; Kunihito Koumoto

doi:10.1016/j.scriptamat.2012.02.010

Effects of alkaline earth doping on the thermoelectric properties of misfit layer sulfides

Yulia Eka Putri, Chunlei Wan, Yifeng Wang, Wataru Norimatsu, Michiko Kusunoki, Kunihito Koumoto

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

35 Scopus citations

Abstract

The substitutional doping of magnesium into the host layers (TiS ₂), calcium and strontium into phonon barrier layers (BiS) was attempted to improve the thermoelectric performance of (BiS) _1.2(TiS ₂) ₂ misfit layer sulfides by decreasing the carrier concentration. The substitutional doping did reduce the carrier concentration; however, the Seebeck coefficient decreased slightly due to the decrease in the effective mass of carrier electrons. Meanwhile, the lattice thermal conductivity was increased by the formation of an ordered or commensurate structure.

Original language	English
Pages (from-to)	895-898
Number of pages	4
Journal	Scripta Materialia
Volume	66
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2012.02.010
State	Published - Jun 2012
Externally published	Yes

Keywords

Electrical resistivity/conductivity
Layered structures
Misfit layer sulfides
Spark plasma sintering
Thermal conductivity

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10.1016/j.scriptamat.2012.02.010

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title = "Effects of alkaline earth doping on the thermoelectric properties of misfit layer sulfides",

abstract = "The substitutional doping of magnesium into the host layers (TiS 2), calcium and strontium into phonon barrier layers (BiS) was attempted to improve the thermoelectric performance of (BiS) 1.2(TiS 2) 2 misfit layer sulfides by decreasing the carrier concentration. The substitutional doping did reduce the carrier concentration; however, the Seebeck coefficient decreased slightly due to the decrease in the effective mass of carrier electrons. Meanwhile, the lattice thermal conductivity was increased by the formation of an ordered or commensurate structure.",

keywords = "Electrical resistivity/conductivity, Layered structures, Misfit layer sulfides, Spark plasma sintering, Thermal conductivity",

author = "Putri, {Yulia Eka} and Chunlei Wan and Yifeng Wang and Wataru Norimatsu and Michiko Kusunoki and Kunihito Koumoto",

year = "2012",

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AU - Putri, Yulia Eka

AU - Wan, Chunlei

AU - Wang, Yifeng

AU - Norimatsu, Wataru

AU - Kusunoki, Michiko

AU - Koumoto, Kunihito

PY - 2012/6

Y1 - 2012/6

N2 - The substitutional doping of magnesium into the host layers (TiS 2), calcium and strontium into phonon barrier layers (BiS) was attempted to improve the thermoelectric performance of (BiS) 1.2(TiS 2) 2 misfit layer sulfides by decreasing the carrier concentration. The substitutional doping did reduce the carrier concentration; however, the Seebeck coefficient decreased slightly due to the decrease in the effective mass of carrier electrons. Meanwhile, the lattice thermal conductivity was increased by the formation of an ordered or commensurate structure.

AB - The substitutional doping of magnesium into the host layers (TiS 2), calcium and strontium into phonon barrier layers (BiS) was attempted to improve the thermoelectric performance of (BiS) 1.2(TiS 2) 2 misfit layer sulfides by decreasing the carrier concentration. The substitutional doping did reduce the carrier concentration; however, the Seebeck coefficient decreased slightly due to the decrease in the effective mass of carrier electrons. Meanwhile, the lattice thermal conductivity was increased by the formation of an ordered or commensurate structure.

KW - Electrical resistivity/conductivity

KW - Layered structures

KW - Misfit layer sulfides

KW - Spark plasma sintering

KW - Thermal conductivity

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M3 - 文章

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SN - 1359-6462

VL - 66

SP - 895

EP - 898

JO - Scripta Materialia

JF - Scripta Materialia

IS - 11

ER -

Effects of alkaline earth doping on the thermoelectric properties of misfit layer sulfides

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Keywords

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