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Flexible layer-structured Bi2Te3 thermoelectric on a carbon nanotube scaffold
Jin, Qun1,2; Jiang, Song1,2,3,4; Zhao, Yang1,5; Wang, Dong6,7; Qiu, Jianhang1,5; Tang, Dai-Ming1,5,8; Tan, Jun1,5; Sun, Dong-Ming1,5; Hou, Peng-Xiang1,5; Chen, Xing-Qiu1,5; Tai, Kaiping1,5; Gao, Ning6; Liu, Chang1,5; Cheng, Hui-Ming1,3,5,9; Jiang, Xin1,5,10
Corresponding AuthorTai, Kaiping(kptai@imr.ac.cn) ; Gao, Ning(ning.gao@impcas.ac.cn) ; Liu, Chang(cliu@imr.ac.cn)
2019
Source PublicationNATURE MATERIALS
ISSN1476-1122
Volume18Issue:1Pages:62-+
AbstractInorganic 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.
Funding OrganizationMinistry 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
DOI10.1038/s41563-018-0217-z
Indexed BySCI
Language英语
Funding ProjectMinistry 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 Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000452876200017
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:99[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130725
Collection中国科学院金属研究所
Corresponding AuthorTai, Kaiping; Gao, Ning; Liu, Chang
Affiliation1.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
Recommended Citation
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-+.
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