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Intrinsically low thermal conductivity from a quasi-one-dimensional crystal structure and enhanced electrical conductivity network via Pb doping in SbCrSe3

文献类型：期刊论文

作者Yang, Dingfeng1,2,3; Yao, Wei4; Yan, Yanci4; Qiu, Wujie5; Guo, Lijie4; Lu, Xu4; Uher, Ctirad6; Han, Xiaodong3; Wang, Guoyu1,7; Yang, Tao2
刊名NPG ASIA MATERIALS
出版日期2017-06-09
卷号9页码:11
ISSN号1884-4049
DOI10.1038/am.2017.77
通讯作者Wang, GY (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave,Shuitu Hitech Ind Pk, Chongqing 400714, Peoples R China. ; Yang, T (reprint author), Chongqing Univ, Dept Chem, Coll Chem & Chem Engn, 55 Univ South Rd, Chongqing 401331, Peoples R China. ; Zhou, XY (reprint author), Chongqing Univ, Dept Appl Phys, Coll Phys, 55 Univ South Rd, Chongqing 401331, Peoples R China.
英文摘要The development of new routes for the production of thermoelectric materials with low-cost and high-performance characteristics has been one of the long-term strategies for saving and harvesting thermal energy. Herein, we report a new approach for improving thermoelectric properties by employing the intrinsically low thermal conductivity of a quasi-one-dimensional (quasi-1D) crystal structure and optimizing the power factor with aliovalent ion doping. As an example, we demonstrated that SbCrSe3, in which two parallel chains of CrSe6 octahedra are linked by antimony atoms, possesses a quasi-1D property that resulted in an ultra-low thermal conductivity of 0.56 W m(-1) K-1 at 900 K. After maximizing the power factor by Pb doping, the peak ZT value of the optimized Pb-doped sample reached 0.46 at 900 K, which is an enhancement of 24 times that of the parent SbCrSe3 structure. The mechanisms that lead to low thermal conductivity derive from anharmonic phonons with the presence of the lone-pair electrons of Sb atoms and weak bonds between the CrSe6 double chains. These results shed new light on the design of new and high-performance thermoelectric materials.
资助项目National Natural Science Foundation of China[11674040] ; National Natural Science Foundation of China[11404044] ; National Natural Science Foundation of China[51472036] ; National Natural Science Foundation of China[51672270] ; National Natural Science Foundation of China[21671028] ; Fundamental Research Funds for the Central Universities[106112016CDJZR308808] ; 100 Talent Program[2013-46] ; Key Research Program for Frontier Sciences, CAS[QYZDB-SSW-SLH016] ; CERC-CVC ; joint US-China Research Program - US Department of Energy[DE-PI0000012]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000402938000001
出版者NATURE PUBLISHING GROUP
源URL[http://172.16.51.4:88/handle/2HOD01W0/211]  
专题机器人与3D打印技术创新中心
通讯作者Wang, Guoyu; Yang, Tao; Zhou, Xiaoyuan
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave,Shuitu Hitech Ind Pk, Chongqing 400714, Peoples R China
2.Chongqing Univ, Dept Chem, Coll Chem & Chem Engn, 55 Univ South Rd, Chongqing 401331, Peoples R China
3.Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Dept Appl Math & Phys, Beijing, Peoples R China
4.Chongqing Univ, Dept Appl Phys, Coll Phys, 55 Univ South Rd, Chongqing 401331, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai, Peoples R China
6.Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
7.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Dingfeng,Yao, Wei,Yan, Yanci,et al. Intrinsically low thermal conductivity from a quasi-one-dimensional crystal structure and enhanced electrical conductivity network via Pb doping in SbCrSe3[J]. NPG ASIA MATERIALS,2017,9:11.
APA Yang, Dingfeng.,Yao, Wei.,Yan, Yanci.,Qiu, Wujie.,Guo, Lijie.,...&Zhou, Xiaoyuan.(2017).Intrinsically low thermal conductivity from a quasi-one-dimensional crystal structure and enhanced electrical conductivity network via Pb doping in SbCrSe3.NPG ASIA MATERIALS,9,11.
MLA Yang, Dingfeng,et al."Intrinsically low thermal conductivity from a quasi-one-dimensional crystal structure and enhanced electrical conductivity network via Pb doping in SbCrSe3".NPG ASIA MATERIALS 9(2017):11.

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来源：重庆绿色智能技术研究院

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