Theoretical Comparison of Electronic and Lattice Thermal Conductivities in n-type (Bi1-xSbx)2Te3 Solid Solutions
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概要
- 論文の詳細を見る
We have theoretically investigated the electronic and lattice thermal conductivities for various carrier concentrations in the n-type (Bi1-xSbx)2Te3 solid solutions using the two-band conduction model with a mixed scattering mechanism. For operation of thermoelectric cooling at low temperatures, the carrier concentration must be controlled so that the electronic thermal conductivity makes the total thermal conductivity have the minimum at an applicable temperature. Under this condition, the electronic thermal conductivity is over 25% of the lattice thermal conductivity and results in the gradual increase of the thermal conductivity. These effects are almost independent of the composition $x$ under the same carrier concentration.
- 2003-06-15
著者
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Kim Hwa-min
Department Of Electronics Engineering Catholic University Of Daegu
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Ahn Jeung
The School Of Materials Science Japan Advanced Institute Of Science And Technology
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Je Koo-chul
The School Of Materials Science Japan Advanced Institute Of Science And Technology (jaist)
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Im Hee-joong
The School Of Materials Science Japan Advanced Institute Of Science And Technology
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Kim Dong-hwan
The School Of Materials Science Japan Advanced Institute Of Science And Technology
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Kang Young-jin
The School Of Materials Science Japan Advanced Institute Of Science And Technology
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Mitani T.
The School Of Materials Science Japan Advanced Institute Of Science And Technology
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Ahn Jeung
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Kim Hwa-Min
Department of Physics and Semiconductor Science, Catholic University of Daegu, Hayang, Kyeongbuk 712-702, Korea
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Kang Young-Jin
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Je Koo-Chul
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Kim Dong-Hwan
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Im Hee-Joong
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Mitani T.
The School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa 923-1292, Japan
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Kim Hwa-Min
Department of Advanced Energy Material Science and Engineering, Catholic University of Daegu, Gyeongsan, Gyeongbuk 712-702, Republic of Korea
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