Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping
文献类型：期刊论文
| 作者 | Zou Tianhua5; Xie Wenjie5; Widenmeyer Marc5; Xiao Xingxing5; Qin Xiaoyin1; Weidenkaff Anke5 |
| 刊名 | 稀有金属：英文版
 |
| 出版日期 | 2018 |
| 卷号 | 037 |
| 关键词 | 硒化物 Sm 散布 锑 铜 温度范围 热传导性 热电 |
| ISSN号 | 1001-0521 |
| 其他题名 | Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping |
| 英文摘要 | Doping- and alloying-induced point defects lead to mass and strain field fluctuations which can be used as effective strategies to decrease the lattice thermal conductivity and consequently boost the performance of thermoelectric materials. Herein, we report the effects of Sm and S co-doping on thermoelectric transport properties of copper antimony selenides in the temperature range of 300 K 〈 T〈 650 K. Through the Callaway model, it demonstrates that Sm and S co-doping induces strong mass differences and strain field fluctuations in Cu3SbSe4. The results prove that doping with suitable elements can increase point defect scattering of heat-carrying phonons, leading to a lower thermal conductivity and a better ther- moelectric performance. The highest figure of merit （ZT） of - 0.55 at 648 K is obtained for the Sm and S co-doped sample with nominal composition of Cu2.995Sm0.005Sb- Se3.95S0.05, which is about 55% increase compared to the ZT of pristine Cu3SbSe4. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6218434 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/93828]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.Institute for Materials Science, University of Stuttgart 2.Institute for Materials Science, University of Stuttgart 3.Institute for Materials Science, University of Stuttgart 4.Institute of Solid State Physics, Chinese Academy of Sciences 5.Institute for Materials Science, University of Stuttgart 6.Institute for Materials Science, University of Stuttgart |
| 推荐引用方式 GB/T 7714 | Zou Tianhua,Xie Wenjie,Widenmeyer Marc,et al. Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping[J]. 稀有金属：英文版,2018,037. |
| APA | Zou Tianhua,Xie Wenjie,Widenmeyer Marc,Xiao Xingxing,Qin Xiaoyin,&Weidenkaff Anke.(2018).Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping.稀有金属：英文版,037. |
| MLA | Zou Tianhua,et al."Enhancing point defect scattering in copper antimony selenides via Sm and S Co-doping".稀有金属：英文版 037(2018). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。