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Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation

文献类型：期刊论文

作者Yang, Heng Quan1; Chen, Yong Jin2,3; Wang, Xiao Yang4; Miao, Lei4; Li, Xiao Yan5; Han, Xiao Dong2,3; Lu, Xu1; Wang, Guo Yu6,7; Zhou, Xiao Yuan1
刊名CRYSTENGCOMM
出版日期2018-12-21
卷号20期号:47页码:7729-7738
ISSN号1466-8033
DOI10.1039/c8ce01539b
通讯作者Miao, Lei(miaolei@guet.edu.cn) ; Wang, Guo Yu(guoyuw@cigit.ac.cn) ; Zhou, Xiao Yuan(xiaoyuan2013@cqu.edu.cn)
英文摘要The rational design and fabrication of nanostructures has become a fashionable strategy for pursing high thermoelectric performance in solid-state materials. Here we report nanostructured Te-Sb2Te3 composites with significantly enhanced thermoelectric performance through a scalable bottom-up method followed by a rapid sintering process. The power factor along with the carrier concentration could be significantly enhanced by increasing the number of point defects of Sb'(Te). Meanwhile, a great number of boundaries and hetero-interfaces between the Te and Sb2Te3 nanoparticles could play an important role in blocking phonons, resulting in the evident suppression of lattice thermal conductivity. Ultimately, a highest zT value close to 1.0 could be achieved at 623 K in samples with components of 2.6 mol% Sb2Te3 and 97.4 mol% Te. Such a peak zT value is comparable to that of doped Te materials synthesized by the conventional solid-state reaction process. This work reveals that high thermoelectric performance could be realized in an intentionally designed nanocomposite by synergistically improving the power factor and suppressing the lattice thermal conductivity.
资助项目National Natural Science Foundation of China[11674040] ; National Natural Science Foundation of China[11604032] ; National Natural Science Foundation of China[51472036] ; National Natural Science Foundation of China[51672270] ; National Natural Science Foundation of China[51772056] ; National Natural Science Foundation of China[51562005] ; National Natural Science Foundation of China[51506168] ; Chongqing Science and Technology Commission[cstc2015jcyjA50025] ; Guangxi Natural Science Foundation of China[2015GXNSFFA139002] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH016] ; Project for Fundamental and Frontier Research in Chongqing[CSTC2015JCYJBX0026]
WOS研究方向Chemistry ; Crystallography
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000452317200015
源URL[http://119.78.100.138/handle/2HOD01W0/7165]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Miao, Lei; Wang, Guo Yu; Zhou, Xiao Yuan
作者单位1.Chongqing Univ, Coll Phys, Chongqing 401331, Peoples R China
2.Beijing Univ Technol, Beijing Key Lab, Beijing 100124, Peoples R China
3.Beijing Univ Technol, Inst Microstruct & Property Adv Mat, Beijing 100124, Peoples R China
4.Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China
5.Chongqing Jiaotong Univ, Dept Mat Sci & Engn, Chongqing 400074, Peoples R China
6.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Heng Quan,Chen, Yong Jin,Wang, Xiao Yang,et al. Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation[J]. CRYSTENGCOMM,2018,20(47):7729-7738.
APA Yang, Heng Quan.,Chen, Yong Jin.,Wang, Xiao Yang.,Miao, Lei.,Li, Xiao Yan.,...&Zhou, Xiao Yuan.(2018).Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation.CRYSTENGCOMM,20(47),7729-7738.
MLA Yang, Heng Quan,et al."Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation".CRYSTENGCOMM 20.47(2018):7729-7738.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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