Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation

doi:10.1039/c8ce01539b

	Realizing high thermoelectric performance in Te nanocomposite through Sb2Te3 incorporation
	Yang, Heng Quan 1; Chen, Yong Jin 2,3; Wang, Xiao Yang 4; Miao, Lei 4; Li, Xiao Yan 5; Han, Xiao Dong 2,3; Lu, Xu 1; Wang, Guo Yu 6,7; Zhou, Xiao Yuan 1
刊名	CRYSTENGCOMM
	2018-12-21
卷号	20 期号:47 页码:7729-7738
ISSN号	1466-8033
DOI	10.1039/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
内容类型	期刊论文
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.