| 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 | |
| 刊名 | NATURE MATERIALS
 |
| 2019 | |
| 卷号 | 18期号:1页码:62-+ |
| ISSN号 | 1476-1122 |
| DOI | 10.1038/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. |
| 收录类别 | SCI |
| WOS关键词 | BISMUTH TELLURIDE ; THERMAL-CONDUCTIVITY ; FIGURE ; PERFORMANCE ; DEVICES ; MERIT ; TRANSPARENT ; MECHANICS ; FILMS ; FOIL |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| 出版者 | NATURE PUBLISHING GROUP |
| WOS记录号 | WOS:000452876200017 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558224 |
| 专题 | 寒区旱区环境与工程研究所 |
| 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-+. |
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