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Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold

文献类型：期刊论文

作者Jin, Qun4,5; Jiang, Song4,5,6,7; Zhao, Yang4,8; Wang, Dong9,10; Qiu, Jianhang4,8; Tang, Dai-Ming2,4,8; Tan, Jun4,8; Sun, Dong-Ming4,8; Hou, Peng-Xiang4,8; Chen, Xing-Qiu4,8
刊名NATURE MATERIALS
出版日期2019
卷号18期号:1页码:62-+
ISSN号1476-1122
DOI10.1038/s41563-018-0217-z
通讯作者Tai, Kaiping(kptai@imr.ac.cn) ; Gao, Ning(ning.gao@impcas.ac.cn) ; Liu, Chang(cliu@imr.ac.cn)
英文摘要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
语种英语
WOS记录号WOS:000452876200017
出版者NATURE PUBLISHING GROUP
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/130724]  
专题金属研究所_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.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen, Peoples R China
2.Natl Inst Mat Sci, World Premier Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki, Japan
3.Univ Siegen, Inst Mat Engn, Siegen, Germany
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China
5.Univ Chinese Acad Sci, Shenyang, Liaoning, Peoples R China
6.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China
7.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai, Peoples R China
8.Univ Sci & Technol China, Dept Mat Sci & Engn, Shenyang, Liaoning, Peoples R China
9.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Gansu, Peoples R China
10.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China
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-+.

入库方式： OAI收割

来源：金属研究所

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