Spontaneously promoted carrier mobility and strengthened phonon scattering in p-type YbZn2Sb2via a nanocompositing approach
文献类型：期刊论文
| 作者 | Zhang, Xiong1,2,4; Zhang, Bin2; Peng, Kun-ling2; Shen, Xing-chen2; Wu, Gui-tai1; Yan, Yan-ci2; Luo, Shi-jun4; Lu, Xu2; Wang, Guo-yu3 ; Gu, Hao-shuang1
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| 刊名 | Nano Energy
 |
| 出版日期 | 2018 |
| 卷号 | 43页码:159-167 |
| ISSN号 | 22112855 |
| DOI | 10.1016/j.nanoen.2017.11.019 |
| 英文摘要 | Conventional strategies for advancing thermoelectrics via nanocompositing focus on the enhanced phonon scattering induced by nanostructured phase. Here, an effective approach of combining carrier mobility promotion and strengthened phonons scattering to simultaneously improve electrical and thermal transport properties is demonstrated. For the p-type YbZn2Sb2with InSb nanoinclusions, the Hall mobility is effectively enhanced by InSb in the whole measured temperature, from 56 cm2V−1s−1to 162 cm2V−1s−1at 300 K. Meanwhile, the carrier density optimization by tuning Yb vacancies leads to 46% improvement in the Seebeck coefficient, overcoming the negative contribution from InSb. Moreover, with the help of interface scattering caused by nanoinclusions, the lattice thermal conductivity is reduced by 45% at 720 K. As a result, the thermoelectric figure of merit ZT is enhanced nearly a factor of three. We believe our method provides a “combined strategy” to enhance thermoelectric performance of YbZn2Sb2based compounds and should be applicable to other thermoelectric materials. © 2017 Elsevier Ltd |
| 语种 | 英语 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/8031]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 作者单位 | 1.Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials-Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physical and Electronic Sciences, Hubei University, Wuhan; 430062, China; 2.College of Physics, Chongqing University, Chongqing; 401331, China; 3.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 4.School of Science, Hubei University of Automotive Technology, Shiyan; 442002, China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiong,Zhang, Bin,Peng, Kun-ling,et al. Spontaneously promoted carrier mobility and strengthened phonon scattering in p-type YbZn2Sb2via a nanocompositing approach[J]. Nano Energy,2018,43:159-167. |
| APA | Zhang, Xiong.,Zhang, Bin.,Peng, Kun-ling.,Shen, Xing-chen.,Wu, Gui-tai.,...&Zhou, Xiao-yuan.(2018).Spontaneously promoted carrier mobility and strengthened phonon scattering in p-type YbZn2Sb2via a nanocompositing approach.Nano Energy,43,159-167. |
| MLA | Zhang, Xiong,et al."Spontaneously promoted carrier mobility and strengthened phonon scattering in p-type YbZn2Sb2via a nanocompositing approach".Nano Energy 43(2018):159-167. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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