| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
Enhancement of thermoelectric efficiency in type-VIII clathrate Ba8Ga16Sn30 by Al substitution for Ga |
|
言語 |
en |
| 作成者 |
Deng, Shukang
Saiga, Yuta
Suekuni, Koichiro
Takabatake, Toshiro
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
権利情報 |
Copyright (c) 2010 American Institute of Physics |
| 主題 |
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主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
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内容記述 |
Single-crystalline samples of type-VIII clathrate Ba8Ga16-xAlxSn30 (0 <= x <= 12) were grown from Sn flux to characterize the structural and thermoelectric properties from 300 to 600 K. The lattice parameter increases by 0.5% as x is increased to 10.5 whose value is the solubility limit of Al. The Seebeck coefficients of all samples are largely negative and the absolute values increase to approximately 300 mu V/K on heating to 600 K. This large thermopower coexists with the metallic behavior in the electrical resistivity. The values of resistivity for 1 <= x <= 6 at 300 K are in the range 3.3-3.8 m Omega cm which is 70% of that for x=0. As a result, the power factor for x=4 and 6 has a rather large maximum of 1.83 x 10(-3) W/m K-2 at 480 K. The thermal conductivity stays at a low level of 0.72 W/mK up to 480 K, and the sample with x=6 reaches a ZT value of 1.2 at 500 K. |
|
言語 |
en |
| 出版者 |
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出版者 |
The American Institute of Physics |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1063/1.3490776 |
| 関連情報 |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
http://dx.doi.org/10.1063/1.3490776 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0021-8979 |
| 収録物識別子 |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00693547 |
| 開始ページ |
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|
開始ページ |
073705-1 |
| 書誌情報 |
Journal of Applied Physics
Journal of Applied Physics
巻 108,
号 7,
p. 073705-1-073705-4,
発行日 2010-10-07
|
| 旧ID |
30785 |
JApplPhys_108_073705.pdf (672.2 KB)
