|
|
JAIST Repository >
c. マテリアルサイエンス研究科・マテリアルサイエンス系 >
c10. 学術雑誌論文等 >
c10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/15362
|
| タイトル: | Sustainable thermoelectric materials fabricated by using Cu_2Sn_<1-x>Zn_xS_3 nanoparticles as building blocks |
| 著者: | Zhou, Wei
Shijimaya, Chiko
Takahashi, Mari
Miyata, Masanobu
Mott, Derrick
Koyano, Mikio
Ohta, Michihiro
Akatsuka, Takeo
Ono, Hironobu
Maenosono, Shinya |
| キーワード: | Thermoelectrics
Nanoparticle
Phonon Scattering
Pulse Electric Current Sintering |
| 発行日: | 2017-12-28 |
| 出版者: | American Institute of Physics |
| 誌名: | Applied Physics Letters |
| 巻: | 111 |
| 号: | 26 |
| 開始ページ: | 263105-1 |
| 終了ページ: | 263105-5 |
| DOI: | 10.1063/1.5009594 |
| 抄録: | Uniform Cu_2Sn_<1-x>Zn_xS_3 (x = 0–0.2) nanoparticles (NPs) with a characteristic size of about 40 nm were chemically synthesized. The primary crystal phase of the NPs was wurtzite (WZ) with a mean crystalline size of about 20 nm. The NPs were sintered to form nanostructured pellets with different compositions preserving the composition and grain size of the original NPs by the pulse electric current sintering technique. The pellets had a zinc blende (ZB) structure with a residual WZ phase, and the mean crystalline size was found to remain virtually unchanged for all pellets. Among all samples, the pellets of Cu_2Sn_<0.95>Zn_<0.05>S_3 and Cu_2Sn_<0.85>Zn_<0.15>S_3 exhibited the highest ZT value (0.37 at 670 K) which is 10 times higher than that of a non-nanostructured Cu_2SnS_3 bulk crystal thanks to effective phonon scattering by nanograins, the phase-pure ZB crystal structure, and the increase in hole carrier density by Zn doping. |
| Rights: | Copyright 2017 Authors. Wei Zhou, Chiko Shijimaya, Mari Takahashi, Masanobu Miyata, Derrick Mott, Mikio Koyano, Michihiro Ohta, Takeo Akatsuka, Hironobu Ono, and Shinya Maenosono, Applied Physics Letters, 111(26), 263105 (2017). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/1.5009594 |
| URI: | http://hdl.handle.net/10119/15362 |
| 資料タイプ: | publisher |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
|
このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
|---|
| 24068.pdf | | 1054Kb | Adobe PDF | 見る/開く |
|
当システムに保管されているアイテムはすべて著作権により保護されています。
|
