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Attaining enhanced thermoelectric performance in p-type (SnSe) 1-x (SnS 2 ) x produced via sintering their solution-synthesized micro/nanostructures

文献类型：期刊论文

作者Liu, Xiaofang1,4; Wang, Hengyang1,4; Zhang, Bin5; Zheng, Sikang3; Chen, Yao1,4; Zhang, Hong1,4; Chen, Xianhua1,4; Wang, Guoyu2; Zhou, Xiaoyuan1,3,5; Han, Guang1,4
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2022-09-01
卷号120页码:205-213
关键词Thermoelectric SnSe Solvothermal synthesis Lattice thermal conductivity
ISSN号1005-0302
DOI10.1016/j.jmst.2021.11.072
通讯作者Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn) ; Han, Guang(guang.han@cqu.edu.cn)
英文摘要SnSe, possessing strong lattice anharmonicity and structural anisotropy, has attracted massive attention in thermoelectric conversion. Herein, we demonstrate that simultaneously optimized electrical and thermal transport properties are achieved in SnS 2 -alloyed SnSe polycrystalline materials, which were fabricated via sintering the mixture of solution-synthesized SnSe microplates and SnS 2 nanoplates. Resulting from the increased carrier concentration, p-type (SnSe) 1-x (SnS 2 ) x ( x = 0.5%, 1%) samples obtain muchimproved power factor between 300 K and 373 K, e.g. 0.72 mW m -1 K -2 at 300 K for (SnSe) 0.99 (SnS 2 ) 0.01 , which is enhanced by 53% compared to that of SnSe. Additionally, the existing point defects and planar defects effectively strengthen phonon scattering, thus reducing the lattice thermal conductivity, for example, 0.47 W m -1 K -1 at 773 K for the x = 0.02 sample. Eventually, a maximum zT of 0.80 at 823 K and an average zT of 0.52 over 300 - 823 K are obtained in the (SnSe) 0.99 (SnS 2 ) 0.01 sample, which are increased by 33% and 45% compared to those of SnSe, respectively. This study demonstrates a secondary phase alloying strategy to synergistically optimize the electrical and thermal properties of polycrystalline SnSe.
资助项目National Natural Science Foundation of China[51802034] ; National Natural Science Foundation of China[52071041] ; National Natural Science Foundation of China[11904039] ; National Natural Science Foundation of China[11874356] ; Natural Science Foundation of Chongqing[cstc2021jcyj-msxmX0407]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000788117700004
出版者JOURNAL MATER SCI TECHNOL
源URL[http://119.78.100.138/handle/2HOD01W0/15840]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Zhou, Xiaoyuan; Han, Guang
作者单位1.Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
4.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
5.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xiaofang,Wang, Hengyang,Zhang, Bin,et al. Attaining enhanced thermoelectric performance in p-type (SnSe) 1-x (SnS 2 ) x produced via sintering their solution-synthesized micro/nanostructures[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,120:205-213.
APA Liu, Xiaofang.,Wang, Hengyang.,Zhang, Bin.,Zheng, Sikang.,Chen, Yao.,...&Han, Guang.(2022).Attaining enhanced thermoelectric performance in p-type (SnSe) 1-x (SnS 2 ) x produced via sintering their solution-synthesized micro/nanostructures.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,120,205-213.
MLA Liu, Xiaofang,et al."Attaining enhanced thermoelectric performance in p-type (SnSe) 1-x (SnS 2 ) x produced via sintering their solution-synthesized micro/nanostructures".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 120(2022):205-213.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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