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Structure and thermoelectric transport properties of isoelectronically substituted (ZnO)5In2O3
http://hdl.handle.net/2237/6208
http://hdl.handle.net/2237/6208a782275f-817f-4070-b26c-a381b71a3eb9
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JSSC_2000_Paper-99-6.pdf (659.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2006-03-22 | |||||
| タイトル | ||||||
| タイトル | Structure and thermoelectric transport properties of isoelectronically substituted (ZnO)5In2O3 | |||||
| 言語 | en | |||||
| 著者 |
Masuda, Yoshitake
× Masuda, Yoshitake× Ohta, Mitsuru× Seo, Won-Seon× Pitschke, Wolfram× Koumoto, Kunihito× 増田, 佳丈× 河本, 邦仁 |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | crystal structure | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Rietveld refinement | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | thermoelectric properties | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | zinc oxide | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | indium oxide | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | homologous series | |||||
| 抄録 | ||||||
| 内容記述 | We have proposed that homologous compounds of (ZnO)m In2O3 with layer structures can become candidate materials for high-temperature thermoelectric conversion due to their low thermal conductivity and high electron mobility. Crystal structures can be modified by the isoelectronic substitution of either divalent or trivalent metal ions for Zn or In ions, respectively. Substitution of Mg2+, Co2+, and Y3+ gave rise to shrinkage of the c axis and elongation of the a axis of a hexagonal unit cell. Rietveld structure refinement indicated that Mg2+ and Co2+ ions occupy both 3a and 6c sites, while Y3+ ions occupy only 3a sites. An optimum amount of substitution of these cations increased electron mobility and hence thermoelectric efficiency Z=σα2/κ (σ=electrical conductivity, α=Seebeck coefficient, κ=thermal conductivity). Z values coupled with lowered thermal conductivity, which was possibly caused by suitable modification of the electronic structure, were associated with distortion of the crystal structure. For instance, the figure of merit of (ZnO)5(In0.97 Y0.03)2O3 was Z=1.3×10-4 K-1. | |||||
| 言語 | en | |||||
| 内容記述タイプ | Abstract | |||||
| 出版者 | ||||||
| 言語 | en | |||||
| 出版者 | Elsevier | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1006/jssc.1999.8589 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 00224596 | |||||
| 書誌情報 |
en : Journal of solid state chemistry 巻 150, 号 2, p. 221-227, 発行日 2000-02-15 |
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| フォーマット | ||||||
| application/pdf | ||||||
| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/6208 | |||||
| 識別子タイプ | HDL | |||||
