Enhanced thermoelectric and mechanical properties of Na-doped polycrystalline SnSe thermoelectric materials via CNTs dispersion
文献类型：期刊论文
| 作者 | Chu, Fei; Zhang, Qihao1; Zhou, Zhenxing; Hou, Diankun; Wang, Lianjun; Jiang, Wan2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2018 |
| 卷号 | 741页码:756 |
| 关键词 | Polycrystalline SnSe Thermoelectric properties Mechanical properties Na doping CNTs dispersion |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.01.178 |
| 英文摘要 | SnSe-based thermoelectric materials have captured much attention since single-crystal SnSe exhibited record high ZT. However, the practical application is limited due to the poor mechanical properties and harsh production conditions of single crystals. Herein, we achieve high thermoelectric performances and enhanced mechanical properties in the Na-doped polycrystalline SnSe through implanting carbon nanotubes (CNTs). The CNTs are truncated and uniformly dispersed within the Na-doped SnSe matrix via a combination of cryogenic grinding and spark plasma sintering technique. It is found that Na-doped polycrystalline SnSe/CNTs composites maintain high carrier concentrations of approximately 4 x 10(19) cm(-3) at room temperature, resulting in great power factors. The dispersion of CNTs reduces the thermal conductivity without significant deterioration on the electrical conductivity. A maximum ZT of similar to 0.96 at 773 K is achieved via adding merely 0.25 vol% CNTs. More fundamentally, the Na-doped polycrystalline SnSe samples incorporated with CNTs show superior mechanical properties, which are favorable for device fabrication and practical applications. (C) 2018 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000425530700093 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | This work was funded by Natural Science Foundation of China (No. 51774096, 51374078), Shanghai Committee of Science and Technology (No. 16JC1401800), Program for Innovative Research Team in University of Ministry of Education of China (IRT_16R13), the Fundamental Research Funds for the Central Universities (No. 2232017A-07). ; This work was funded by Natural Science Foundation of China (No. 51774096, 51374078), Shanghai Committee of Science and Technology (No. 16JC1401800), Program for Innovative Research Team in University of Ministry of Education of China (IRT_16R13), the Fundamental Research Funds for the Central Universities (No. 2232017A-07). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25001]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 3.Jingdezhen Ceram Inst, Sch Mat Sci & Engn, Jingdezhen 333000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, Fei,Zhang, Qihao,Zhou, Zhenxing,et al. Enhanced thermoelectric and mechanical properties of Na-doped polycrystalline SnSe thermoelectric materials via CNTs dispersion[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,741:756, 764. |
| APA | Chu, Fei,Zhang, Qihao,Zhou, Zhenxing,Hou, Diankun,Wang, Lianjun,&Jiang, Wan.(2018).Enhanced thermoelectric and mechanical properties of Na-doped polycrystalline SnSe thermoelectric materials via CNTs dispersion.JOURNAL OF ALLOYS AND COMPOUNDS,741,756. |
| MLA | Chu, Fei,et al."Enhanced thermoelectric and mechanical properties of Na-doped polycrystalline SnSe thermoelectric materials via CNTs dispersion".JOURNAL OF ALLOYS AND COMPOUNDS 741(2018):756. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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