Realizing enhanced thermoelectric properties in Cu2S-alloyed SnSe based composites produced via solution synthesis and sintering
文献类型：期刊论文
| 作者 | Chen, Yao1; Chen, Jie5; Zhang, Bin2; Yang, Meiling1; Liu, Xiaofang1; Wang, Hengyang1; Yang, Lei5; Wang, Guoyu4 ; Han, Guang1; Zhou, Xiaoyuan2,3
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| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 出版日期 | 2021-07-10 |
| 卷号 | 78页码:121-130 |
| 关键词 | Thermoelectric Tin chalcogenides Solution synthesis Composites Transmission electron microscopy |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2020.10.062 |
| 通讯作者 | Han, Guang(guang.han@cqu.edu.cn) ; Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn) |
| 英文摘要 | SnSe emerges as one of the most promising Te-free thermoelectric materials due to its strong anharmonicity and multiple valence bands structure. Recently, compositing has been proven effective in optimizing thermoelectric performance of various metal chalcogenides. Herein, a series of SnSe-xCu(2)S (x = 0, 0.5%, 1%, 3%, 5%) materials have been fabricated via solution synthesis, particle blending, and spark plasma sintering in sequence. After incorporating Cu2S, the materials become SnSe based composites with Cu doping, S substitution and Cu2SnSe3 secondary phase. We elucidate that the power factor of polycrystalline SnSe can be tuned and enhanced at varied temperature ranges through adjusting the addition amount of Cu2S. Additionally, the composites achieve suppressed lattice thermal conductivity when compared to SnSe itself, as the introduced point defects and SnSe/Cu2SnSe3 interfaces intensify phonon scattering. Consequently, SnSe-0.5%Cu2S and SnSe-3%Cu2S achieve a peak zT of 0.70 at 830 K (intermediate temperature range) and a highly increased zT of 0.28 at 473 K (low temperature range), respectively, which are similar to 130% and 200% of values reached by SnSe at the corresponding temperatures. The study demonstrates that our approach, which combines compositing with elemental doping and substitution, is effective in optimizing the thermoelectric performance of SnSe at varied temperature ranges. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Natural Science Foundation of China[51802034] ; National Natural Science Foundation of China[11674040] ; National Natural Science Foundation of China[51672270] ; National Natural Science Foundation of China[11904039] ; Chongqing Research Program of Basic Research and Frontier Technology[cstc2018jcyjAX0346] ; Chongqing Entrepreneurship and Innovation Program for the Returned Overseas Chinese Scholars[cx2018020] ; Fundamental Research Funds for the Central Universities[2019CDQYCL003] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000652023600012 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/13652]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Han, Guang; Zhou, Xiaoyuan |
| 作者单位 | 1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 2.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China 3.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 5.Sichuan Univ, Sch Mat Sci & Engn, Chengdu 610064, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yao,Chen, Jie,Zhang, Bin,et al. Realizing enhanced thermoelectric properties in Cu2S-alloyed SnSe based composites produced via solution synthesis and sintering[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,78:121-130. |
| APA | Chen, Yao.,Chen, Jie.,Zhang, Bin.,Yang, Meiling.,Liu, Xiaofang.,...&Zhou, Xiaoyuan.(2021).Realizing enhanced thermoelectric properties in Cu2S-alloyed SnSe based composites produced via solution synthesis and sintering.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,78,121-130. |
| MLA | Chen, Yao,et al."Realizing enhanced thermoelectric properties in Cu2S-alloyed SnSe based composites produced via solution synthesis and sintering".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 78(2021):121-130. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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