High wide-temperature-range thermoelectric performance in GeTe through hetero-nanostructuring
文献类型：期刊论文
| 作者 | Zhang, Qingtang2; Ying, Pan2; Farrukh, Aftab4; Gong, Yaru2; Liu, Jizi2; Huang, Xinqi2; Li, Di3 ; Wang, Meiyu1; Chen, Guang2; Tang, Guodong2
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| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 276 |
| 关键词 | Thermoelectric GeTe Rashba effect Hetero-nanostructures Average ZT |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2024.120132 |
| 通讯作者 | Wang, Meiyu(mywang@nju.edu.cn) ; Chen, Guang(gchen@njust.edu.cn) ; Tang, Guodong(tangguodong@njust.edu.cn) |
| 英文摘要 | GeTe is emerging as promising medium-temperature thermoelectric material due to its highly competitive performance and good mechanical properties. Strong Rashba spin splitting was harnessed to markedly improve the Seebeck coefficient and power factor of Bi and Sn codoped GeTe at low-medium temperature. Moreover, it is found that Bi-Sn-Cu doping reduces the phase-transition temperature to extend better electrical transport behavior of cubic phase to low temperature. As a result, the electrical transport properties in low-medium temperature were overall enhanced. In the meanwhile, endotaxial hetero-nanostructures efficiently scatter phonons and play a dominant role on affecting phonon propagation. The lattice thermal conductivity was reduced to 0.2 W m(-1) K-1 at 673 K. Drive by strengthening Rashba effect and endotaxial hetero-nanostructures, a record-high average ZT (300-823 K) of 1.6 and a high ZT of 2.1 were obtained in lead-free GeTe-based compounds. The vast increase of ZT promotes GeTe as a promising candidate for a wide range of applications in waste heat recovery and power generation. |
| WOS关键词 | BAND ; CONVERGENCE ; MOBILITY ; FIGURE |
| 资助项目 | National Natural Science Foundation of China[52071182] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001265670500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136917]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Meiyu; Chen, Guang; Tang, Guodong |
| 作者单位 | 1.Nanjing Univ, Coll Engn & Appl Sci & Collaborat, Innovat Ctr Adv Microstruct, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China 2.Nanjing Univ Sci & Technol, Engn Res Ctr Mat Behav & Design, Natl Key Lab Adv Casting Technol, MIIT Key Lab Adv Met & Intermet Mat Technol,Minist, Nanjing 210094, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 4.PMAS Arid Agr Univ, Rawalpindi, Pakistan |
| 推荐引用方式 GB/T 7714 | Zhang, Qingtang,Ying, Pan,Farrukh, Aftab,et al. High wide-temperature-range thermoelectric performance in GeTe through hetero-nanostructuring[J]. ACTA MATERIALIA,2024,276. |
| APA | Zhang, Qingtang.,Ying, Pan.,Farrukh, Aftab.,Gong, Yaru.,Liu, Jizi.,...&Tang, Guodong.(2024).High wide-temperature-range thermoelectric performance in GeTe through hetero-nanostructuring.ACTA MATERIALIA,276. |
| MLA | Zhang, Qingtang,et al."High wide-temperature-range thermoelectric performance in GeTe through hetero-nanostructuring".ACTA MATERIALIA 276(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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