Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold

doi:10.1038/s41563-018-0217-z

IMR OpenIR

	Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold
	Jin, Qun 1,2; Jiang, Song 1,2,3,4; Zhao, Yang 1,5; Wang, Dong 6,7; Qiu, Jianhang 1,5; Tang, Dai-Ming 1,5,8; Tan, Jun 1,5; Sun, Dong-Ming 1,5; Hou, Peng-Xiang 1,5; Chen, Xing-Qiu 1,5; Tai, Kaiping 1,5; Gao, Ning 6; Liu, Chang 1,5; Cheng, Hui-Ming 1,3,5,9; Jiang, Xin 1,5,10
通讯作者	Tai, Kaiping(kptai@imr.ac.cn) ; Gao, Ning(ning.gao@impcas.ac.cn) ; Liu, Chang(cliu@imr.ac.cn)
	2019
发表期刊	NATURE MATERIALS
ISSN	1476-1122
卷号	18 期号:1 页码:62-+
摘要	Inorganic chalcogenides are traditional high-performance thermoelectric materials. However, they suffer from intrinsic brittleness and it is very difficult to obtain materials with both high thermoelectric ability and good flexibility. Here, we report a flexible thermoelectric material comprising highly ordered Bi2Te3 nanocrystals anchored on a single-walled carbon nanotube (SWCNT) network, where a crystallographic relationship exists between the Bi2Te3 <<(1)over bar>2 (1) over bar0> orientation and SWCNT bundle axis. This material has a power factor of similar to 1,600 mu Wm(-1)K(-2) at room temperature, decreasing to 1,100 mu Wm(-1) K-2 at 473 K. With a low in-plane lattice thermal conductivity of 0.26 +/- 0.03 Wm(-1) K-1, a maximum thermoelectric figure of merit (ZT) of 0.89 at room temperature is achieved, originating from a strong phonon scattering effect. The origin of the excellent flexibility and thermoelectric performance of the Bi2Te3-SWCNT material is attributed, by experimental and computational evidence, to its crystal orientation, interface and nanopore structure. Our results provide insight into the design and fabrication of high-performance flexible thermoelectric materials.
资助者	Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Hundred Talents Program of the Chinese Academy of Sciences ; Equipment Development Project of the Chinese Academy of Sciences ; Innovation Foundation of Institute of Metal Research
DOI	10.1038/s41563-018-0217-z
收录类别	SCI
语种	英语
资助项目	Ministry of Science and Technology of China[2017YFA0700702] ; Ministry of Science and Technology of China[2016YFA0200101] ; National Natural Science Foundation of China[51402310] ; National Natural Science Foundation of China[51571193] ; National Natural Science Foundation of China[51625203] ; National Natural Science Foundation of China[51532008] ; National Natural Science Foundation of China[51521091] ; Hundred Talents Program of the Chinese Academy of Sciences ; Equipment Development Project of the Chinese Academy of Sciences ; Innovation Foundation of Institute of Metal Research
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000452876200017
出版者	NATURE PUBLISHING GROUP
引用统计	被引频次：386[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/130725
专题	中国科学院金属研究所
通讯作者	Tai, Kaiping; Gao, Ning; Liu, Chang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Shenyang, Liaoning, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai, Peoples R China 5.Univ Sci & Technol China, Dept Mat Sci & Engn, Shenyang, Liaoning, Peoples R China 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Gansu, Peoples R China 7.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China 8.Natl Inst Mat Sci, World Premier Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki, Japan 9.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen, Peoples R China 10.Univ Siegen, Inst Mat Engn, Siegen, Germany
推荐引用方式 GB/T 7714	Jin, Qun,Jiang, Song,Zhao, Yang,et al. Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold[J]. NATURE MATERIALS,2019,18(1):62-+.
APA	Jin, Qun.,Jiang, Song.,Zhao, Yang.,Wang, Dong.,Qiu, Jianhang.,...&Jiang, Xin.(2019).Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold.NATURE MATERIALS,18(1),62-+.
MLA	Jin, Qun,et al."Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold".NATURE MATERIALS 18.1(2019):62-+.