Hydrothermal synthesis of stable metallic 1T phase WS2 nanosheets for thermoelectric application
文献类型：期刊论文
| 作者 | Piao, Mingxing1; Chu, Jin1 ; Wang, Xiao1; Chi, Yao1; Zhang, Heng1; Li, Chaolong1; Shi, Haofei1; Joo, Min-Kyu2
|
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 29期号:2页码:8 |
| 关键词 | 1T phase WS2 nanosheets hydrothermal method phase stability TE properties |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/1361-6528/aa9bfe |
| 英文摘要 | Two-dimensional materials have gained great attention as a promising thermoelectric (TE) material due to their unique density of state with confined electrons and holes. Here, we synthesized 1T phase tungsten disulfide (WS2) nanosheets with high TE performance via the hydrothermal method. Flexible WS2 nanosheets restacked thin films were fabricated by employing the vacuum filtration technique. The measured electrical conductivity was 45 S cm(-1) with a Seebeck coefficient of + 30 mu V K-1 at room temperature, indicating a p-type characteristic. Furthermore, the TE performance could be further improved by thermal annealing treatment. It was found the electrical conductivity could be enhanced 2.7 times without sacrificing the Seebeck coefficient, resulting in the power factor of 9.40 mu W m(-1) K-2. Moreover, such 1T phase WS2 nanosheets possess high phase stability since the TE properties maintained constant at least half one year in the air atmosphere. Notably, other kinds of 1T phase transitional metal dichalcogenides (TMDCs) with excellent TE performance also could be imitated by using the procedure in this work. Finally, we believe a variety of materials based on 1T phase TMDCs nanosheets have great potential as candidate for future TE applications. |
| 资助项目 | National Natural Science Foundation of China[51602306] ; National Natural Science Foundation of China[61601434] ; Venture & Innovation Support Program for Chongqing Overseas Returnees |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000417823400001 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://172.16.51.4:88/handle/2HOD01W0/93]  |
| 专题 | 微纳制造与系统集成研究中心 |
| 通讯作者 | Piao, Mingxing |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China 2.Inst Basic Sci, Ctr Integrated Nanostruct Phys, Suwon 16419, South Korea |
| 推荐引用方式 GB/T 7714 | Piao, Mingxing,Chu, Jin,Wang, Xiao,et al. Hydrothermal synthesis of stable metallic 1T phase WS2 nanosheets for thermoelectric application[J]. NANOTECHNOLOGY,2018,29(2):8. |
| APA | Piao, Mingxing.,Chu, Jin.,Wang, Xiao.,Chi, Yao.,Zhang, Heng.,...&Joo, Min-Kyu.(2018).Hydrothermal synthesis of stable metallic 1T phase WS2 nanosheets for thermoelectric application.NANOTECHNOLOGY,29(2),8. |
| MLA | Piao, Mingxing,et al."Hydrothermal synthesis of stable metallic 1T phase WS2 nanosheets for thermoelectric application".NANOTECHNOLOGY 29.2(2018):8. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。