Thermoelectric properties of P-type BaSnO3 ceramics doped with cobalt

Masahiro Yasukawa; Yukihiro Hamada; Toshio Kono; Kazushige Ueda; Hiroshi Yanagi; Sung Wng Kim; Hideo Hosono

doi:10.2497/jjspm.58.149

Thermoelectric properties of P-type BaSnO₃ ceramics doped with cobalt

Masahiro Yasukawa, Yukihiro Hamada, Toshio Kono, Kazushige Ueda, Hiroshi Yanagi, Sung Wng Kim, Hideo Hosono

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

6 Scopus citations

Abstract

Perovskite-type BaSn_1-xCo_xO_3-δ ceramics were prepared by a solid state reaction, and the electrical conductivity δ and Seebeck coefficient S were measured in the temperature range 373-1073 K to evaluate the thermoelectric power factors S ²δ. Dense ceramics with relative densities of ∼ 98% were obtained by firing at 1573 K for the BaSn_1-xCo_xO _3-δ with x = 0.03-0.15. Temperature dependence of a and S showed that the BaSn_1-xCo_xO_3-δ ceramics with x = 0.03-0.15 were p-type semiconductors. A possible origin of the p-type conduction is hopping of holes between localized states of Co ions. The S ²δ values were in the orders of 10^-11-10 ^-7 Wm^-1K^-2 and the highest value was 2.7X 10^-7 Wm^-1TK^-2 at 1073 K for x = 0.15.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	58
Issue number	3
DOIs	https://doi.org/10.2497/jjspm.58.149
State	Published - Mar 2011
Externally published	Yes

Keywords

BaSnO
Electrical conductivity
Perovskite
Seebeck coefficient
Thermoelectric properties

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10.2497/jjspm.58.149

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title = "Thermoelectric properties of P-type BaSnO3 ceramics doped with cobalt",

abstract = "Perovskite-type BaSn1-xCoxO3-δ ceramics were prepared by a solid state reaction, and the electrical conductivity δ and Seebeck coefficient S were measured in the temperature range 373-1073 K to evaluate the thermoelectric power factors S 2δ. Dense ceramics with relative densities of ∼ 98\% were obtained by firing at 1573 K for the BaSn1-xCoxO 3-δ with x = 0.03-0.15. Temperature dependence of a and S showed that the BaSn1-xCoxO3-δ ceramics with x = 0.03-0.15 were p-type semiconductors. A possible origin of the p-type conduction is hopping of holes between localized states of Co ions. The S 2δ values were in the orders of 10-11-10 -7 Wm-1K-2 and the highest value was 2.7X 10-7 Wm-1TK-2 at 1073 K for x = 0.15.",

keywords = "BaSnO, Electrical conductivity, Perovskite, Seebeck coefficient, Thermoelectric properties",

author = "Masahiro Yasukawa and Yukihiro Hamada and Toshio Kono and Kazushige Ueda and Hiroshi Yanagi and Kim, \{Sung Wng\} and Hideo Hosono",

year = "2011",

month = mar,

doi = "10.2497/jjspm.58.149",

language = "English",

volume = "58",

pages = "149--154",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

issn = "0532-8799",

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TY - JOUR

T1 - Thermoelectric properties of P-type BaSnO3 ceramics doped with cobalt

AU - Yasukawa, Masahiro

AU - Hamada, Yukihiro

AU - Kono, Toshio

AU - Ueda, Kazushige

AU - Yanagi, Hiroshi

AU - Kim, Sung Wng

AU - Hosono, Hideo

PY - 2011/3

Y1 - 2011/3

N2 - Perovskite-type BaSn1-xCoxO3-δ ceramics were prepared by a solid state reaction, and the electrical conductivity δ and Seebeck coefficient S were measured in the temperature range 373-1073 K to evaluate the thermoelectric power factors S 2δ. Dense ceramics with relative densities of ∼ 98% were obtained by firing at 1573 K for the BaSn1-xCoxO 3-δ with x = 0.03-0.15. Temperature dependence of a and S showed that the BaSn1-xCoxO3-δ ceramics with x = 0.03-0.15 were p-type semiconductors. A possible origin of the p-type conduction is hopping of holes between localized states of Co ions. The S 2δ values were in the orders of 10-11-10 -7 Wm-1K-2 and the highest value was 2.7X 10-7 Wm-1TK-2 at 1073 K for x = 0.15.

AB - Perovskite-type BaSn1-xCoxO3-δ ceramics were prepared by a solid state reaction, and the electrical conductivity δ and Seebeck coefficient S were measured in the temperature range 373-1073 K to evaluate the thermoelectric power factors S 2δ. Dense ceramics with relative densities of ∼ 98% were obtained by firing at 1573 K for the BaSn1-xCoxO 3-δ with x = 0.03-0.15. Temperature dependence of a and S showed that the BaSn1-xCoxO3-δ ceramics with x = 0.03-0.15 were p-type semiconductors. A possible origin of the p-type conduction is hopping of holes between localized states of Co ions. The S 2δ values were in the orders of 10-11-10 -7 Wm-1K-2 and the highest value was 2.7X 10-7 Wm-1TK-2 at 1073 K for x = 0.15.

KW - BaSnO

KW - Electrical conductivity

KW - Perovskite

KW - Seebeck coefficient

KW - Thermoelectric properties

UR - https://www.scopus.com/pages/publications/79958751390

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DO - 10.2497/jjspm.58.149

M3 - Article

AN - SCOPUS:79958751390

SN - 0532-8799

VL - 58

SP - 149

EP - 154

JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy

IS - 3

ER -

Thermoelectric properties of P-type BaSnO₃ ceramics doped with cobalt

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Keywords

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