Thermoelectric properties of sintered n-type and p-type tellurides

Juha Hassel; Jyrki Tervo

doi:10.1007/s11664-012-2408-8

Thermoelectric properties of sintered n-type and p-type tellurides

Juha Hassel, Jyrki Tervo (Corresponding Author)

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

2 Citations (Scopus)

Abstract

Characterization of powder-metallurgically manufactured (Bi_x Sb_1−x)2(Te_y Se_1−y )₃thermoelectric materials is presented. The manufacturing methods were spark plasma sintering (SPS) and hot isostatic pressing (HIP). x-Ray diffraction (XRD) and density measurements as well as transport characterization and scanning electron microscopy were performed on the materials. It is shown that both sintering techniques yield reasonable thermoelectric characteristics for p-type (x = 0.2, y = 1) as well as n-type (x = 0.95, y = 0.95) materials. Insight into the underlying reasons such as the scattering processes limiting the characteristics is gained by fitting experimental transport data using a theoretical model. The limitations and further optimization issues of our approach in thermoelectric material preparation are discussed.

Original language	English
Pages (from-to)	1745-1750
Journal	Journal of Electronic Materials
Volume	42
Issue number	7
DOIs	https://doi.org/10.1007/s11664-012-2408-8
Publication status	Published - 2013
MoE publication type	A1 Journal article-refereed

Keywords

HIP
SPS
Tellurides
thermoelectricity
transport properties

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10.1007/s11664-012-2408-8

Cite this

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title = "Thermoelectric properties of sintered n-type and p-type tellurides",

abstract = "Characterization of powder-metallurgically manufactured (Bix Sb1−x )2(Tey Se1−y )3thermoelectric materials is presented. The manufacturing methods were spark plasma sintering (SPS) and hot isostatic pressing (HIP). x-Ray diffraction (XRD) and density measurements as well as transport characterization and scanning electron microscopy were performed on the materials. It is shown that both sintering techniques yield reasonable thermoelectric characteristics for p-type (x = 0.2, y = 1) as well as n-type (x = 0.95, y = 0.95) materials. Insight into the underlying reasons such as the scattering processes limiting the characteristics is gained by fitting experimental transport data using a theoretical model. The limitations and further optimization issues of our approach in thermoelectric material preparation are discussed.",

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author = "Juha Hassel and Jyrki Tervo",

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T1 - Thermoelectric properties of sintered n-type and p-type tellurides

AU - Hassel, Juha

AU - Tervo, Jyrki

PY - 2013

Y1 - 2013

N2 - Characterization of powder-metallurgically manufactured (Bix Sb1−x )2(Tey Se1−y )3thermoelectric materials is presented. The manufacturing methods were spark plasma sintering (SPS) and hot isostatic pressing (HIP). x-Ray diffraction (XRD) and density measurements as well as transport characterization and scanning electron microscopy were performed on the materials. It is shown that both sintering techniques yield reasonable thermoelectric characteristics for p-type (x = 0.2, y = 1) as well as n-type (x = 0.95, y = 0.95) materials. Insight into the underlying reasons such as the scattering processes limiting the characteristics is gained by fitting experimental transport data using a theoretical model. The limitations and further optimization issues of our approach in thermoelectric material preparation are discussed.

AB - Characterization of powder-metallurgically manufactured (Bix Sb1−x )2(Tey Se1−y )3thermoelectric materials is presented. The manufacturing methods were spark plasma sintering (SPS) and hot isostatic pressing (HIP). x-Ray diffraction (XRD) and density measurements as well as transport characterization and scanning electron microscopy were performed on the materials. It is shown that both sintering techniques yield reasonable thermoelectric characteristics for p-type (x = 0.2, y = 1) as well as n-type (x = 0.95, y = 0.95) materials. Insight into the underlying reasons such as the scattering processes limiting the characteristics is gained by fitting experimental transport data using a theoretical model. The limitations and further optimization issues of our approach in thermoelectric material preparation are discussed.

KW - HIP

KW - SPS

KW - Tellurides

KW - thermoelectricity

KW - transport properties

U2 - 10.1007/s11664-012-2408-8

DO - 10.1007/s11664-012-2408-8

M3 - Article

SN - 0361-5235

VL - 42

SP - 1745

EP - 1750

JO - Journal of Electronic Materials

JF - Journal of Electronic Materials

IS - 7

ER -

Thermoelectric properties of sintered n-type and p-type tellurides

Abstract

Keywords

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