| Item type |
文献 / Documents(1) |
| 公開日 |
2022-06-15 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.ceramint.2022.01.119 |
|
|
言語 |
ja |
|
|
関連名称 |
10.1016/j.ceramint.2022.01.119 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
|
|
タイトル |
Experimental estimation of the Lorenz number and scattering parameter for p-type bismuth antimony telluride via multiple doping under constant temperature conditions |
|
言語 |
en |
| 著者 |
アサイ, ジュン
Bumbrungpon, Mongkol
ツボチ, トシヤ
カナヤ, タカユキ
タチイ, マサヤ
マエダ, トシキ
イワモト, タク
カンダ, チカ
長谷崎, 和洋
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The effects of the addition of lead as one of the multiple dopants in p-type Bi0.3−xSb1.7Te3.0+0.01Pbx (x = 0, 0.001, 0.002, 0.003) fabricated by mechanical alloying followed by hot pressing were investigated. Measurements by X-ray diffraction (XRD), differential thermal analysis (DTA), and scanning electron microscopy (SEM) showed the same matrix morphology. The second phase by doped elements was not confirmed by transmission electron microscopy (TEM). By using the lead addition results and previously studied tellurium doping effects, the Lorenz number L was evaluated to be 0.73–1.18 × 10−8 W S−1 K−2. The scattering parameter γ and reduced Fermi energy η were estimated by using expressions on the basis of a one-electron approximation, measured Seebeck coefficients, and the estimated L at room temperature. The γ ranged approximately from −1.06 to −0.60 and showed a mutual effect of acoustic and optical phonon scattering. The relationship between a dimensionless figure of merit ZT and η was clarified. The optimum η was determined as −1.25 at ZT = 1.26. From these results, multi-doped Bi0.3Sb1.7Te3.0 could be applied to evaluate L, γ, and η at a constant temperature. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Electrical properties |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Thermal conductivity |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Hot pressing |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Thermoelectric materials |
| 書誌情報 |
en : Ceramics International
巻 48,
号 9,
p. 12520-12528,
発行日 2022-01-17
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| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
02728842 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10622625 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11523301 |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| EID |
|
|
識別子 |
385916 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
ceramint_48_9_12520.pdf (1.02 MB)
