Electronic quality factor for thermoelectrics
文献类型：期刊论文
| 作者 | Zhang, XY; Bu, ZL; Shi, XM; Chen, ZW; Lin, SQ; Shan, B; Wood, M; Snyder, AH; Chen, LD; Snyder, GJ |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2020-11-01 |
| 期号 | 46 |
| ISSN号 | 2375-2548 |
| DOI | 10.1126/sciadv.abc0726 |
| 文献子类 | Article |
| 英文摘要 | Development of thermoelectrics usually involves trial-and-error investigations, including time-consuming synthesis and measurements. Here, we identify the electronic quality factor B-E for determining the maximum thermoelectric power factor, which can be conveniently estimated by a single measurement of Seebeck coefficient and electrical conductivity of only one sample, not necessarily optimized, at an arbitrary temperature. We demonstrate that thousands of experimental measurements in dozens of materials can all be described by a universal curve and a single material parameter B-E for each class of materials. Furthermore, any deviation in B-E with temperature or doping indicated new effects such as band convergence or additional scattering. This makes B-E a powerful tool for evaluating and guiding the development of thermoelectrics. We demonstrate the power of B-E to show both p-type GeTe alloys and n-type Mg3SbBi alloys as highly competitive materials, at near room temperature, to state-of-the-art Bi2Te3 alloys used in nearly all commercial applications. |
| WOS关键词 | WASTE HEAT ; PERFORMANCE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27641]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, XY,Bu, ZL,Shi, XM,et al. Electronic quality factor for thermoelectrics[J]. SCIENCE ADVANCES,2020(46). |
| APA | Zhang, XY.,Bu, ZL.,Shi, XM.,Chen, ZW.,Lin, SQ.,...&Pei, YZ.(2020).Electronic quality factor for thermoelectrics.SCIENCE ADVANCES(46). |
| MLA | Zhang, XY,et al."Electronic quality factor for thermoelectrics".SCIENCE ADVANCES .46(2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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