Effect of Excess Te on Microstructure and Thermoelectric Properties of p-type Bi0.40Sb1.60Te3.00+x (0.00.LEQ.x.LEQ.0.40) Materials Prepared by Hot Pressing Method
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- MIYASHITA Norihiko
- Corporate R&D Center, Mitsui Mining & Smelting Co., Ltd.
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- YANO Tomoyasu
- Corporate R&D Center, Mitsui Mining & Smelting Co., Ltd.
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- TSUKUDA Ryoma
- Corporate R&D Center, Mitsui Mining & Smelting Co., Ltd.
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- YASHIMA Isamu
- Corporate R&D Center, Mitsui Mining & Smelting Co., Ltd.
Bibliographic Information
- Other Title
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- 過剰のTeがHP法で作製したp型Bi<SUB>0.40</SUB>Sb<SUB>1.60</SUB>Te<SUB>3.00+x</SUB>(0.00≤x≤0.40)材料の微構造と熱電特性に与える影響
- Effect of Excess Te on Microstructure and Thermoelectric Properties of p-type Bi0.40Sb1.60Te3.00+x (0.00≦x≦0.40) Materials Prepared by Hot Pressing Method
- Effect of Excess Te on Microstructure and Thermoelectric Properties of p type Bi0 40Sb1 60Te3 00 x 0 00 x 0 40 Materials Prepared by Hot Pressing Method
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Abstract
The purpose of this study is to investigate the effect of excess Te on the microstructure and thermoelectric properties of p-type Bi0.40Sb1.60Te3.00+x (0.00≤x≤0.40) materials prepared by a hot pressing method. For such materials, the grain size and (001) orientation increased, the resistivity and Seebeck coefficient decreased, and the thermal conductivity gradually increased with increasing amount of excess Te. Based on our analysis, it is reasonable to consider that excess Te was employed as a dopant, which increased carrier density. The figure of merit of p-type Bi0.40Sb1.60Te3.00+x materials gradually decreased with increasing amount of excess Te, and showed a maximum of Z=3.57×10-3K-1 at a composition ratio of x=0.00.
Journal
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 111 (1294), 386-390, 2003
The Ceramic Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205247685888
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- NII Article ID
- 10017027425
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- NII Book ID
- AN10040326
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- ISSN
- 18821022
- 09145400
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- NDL BIB ID
- 6607244
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed