bandengineeringandprecipitationenhancethermoelectricperformanceofsntewithzndoping
文献类型：期刊论文
| 作者 | Chen Zhiyu4; Wang Ruifeng3; Wang Guoyu3 ; Zhou Xiaoyuan2; Wang Zhengshang4; Yin Cong4; Hu Qing4; Zhou Binqiang1; Tang Jun4; Ang Ran4
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| 刊名 | chinesephysicsb
 |
| 出版日期 | 2018 |
| 卷号 | 27期号:4 |
| ISSN号 | 1674-1056 |
| 英文摘要 | We have systematically studied the thermoelectric properties in Zn-doped SnTe. Strikingly, band convergence and embedded precipitates arising from Zn doping, can trigger a prominent improvement of thermoelectric performance. In particular, the value of dimensionless figure of merit zT has increased by 100% and up to similar to 0.5 at 775 K for the optimal sample with 2% Zn content. Present findings demonstrate that carrier concentration and effective mass play crucial roles on the Seebeck coefficient and power factor. The obvious deviation from the Pisarenko line (Seebeck coefficient versus carrier concentration) due to Zn-doping reveals the convergence of valence bands. When the doping concentration exceeds the solubility, precipitates occur and lead to a reduction of lattice thermal conductivity. In addition, bipolar conduction is suppressed, indicating an enlargement of band gap. The Zn-doped SnTe is shown to be a promising candidate for thermoelectric applications. |
| 资助项目 | [National Natural Science Foundation of China] ; [Youth Foundation of Science & Technology Department of Sichuan Province, China] ; [Sichuan University Talent Introduction Research Funding] ; [Sichuan University Outstanding Young Scholars Research Funding] ; [World First-Class University Construction Funding] ; [Fundamental and Frontier Research in Chongqing] |
| 语种 | 英语 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/9158]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 作者单位 | 1.同济大学 2.重庆大学 3.中国科学院重庆绿色智能技术研究院 4.四川大学 |
| 推荐引用方式 GB/T 7714 | Chen Zhiyu,Wang Ruifeng,Wang Guoyu,et al. bandengineeringandprecipitationenhancethermoelectricperformanceofsntewithzndoping[J]. chinesephysicsb,2018,27(4). |
| APA | Chen Zhiyu.,Wang Ruifeng.,Wang Guoyu.,Zhou Xiaoyuan.,Wang Zhengshang.,...&Ang Ran.(2018).bandengineeringandprecipitationenhancethermoelectricperformanceofsntewithzndoping.chinesephysicsb,27(4). |
| MLA | Chen Zhiyu,et al."bandengineeringandprecipitationenhancethermoelectricperformanceofsntewithzndoping".chinesephysicsb 27.4(2018). |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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