Effects of AgBiSe2 on thermoelectric properties of SnTe
文献类型：期刊论文
| 作者 | Zhang, Qiang; Guo, Zhe; Tan, Xiaojian; Mao, Lisha; Yin, Yinong; Xiao, Yukun; Hu, Haoyang; Tan, Chang; Wu, Qingsong; Liu, Guo-Qiang |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020 |
| 卷号 | 390 |
| 关键词 | THERMAL-CONDUCTIVITY BAND CONVERGENCE RESONANT STATE PERFORMANCE LATTICE ENHANCEMENT SCATTERING POWER MN SOLUBILITY |
| DOI | 10.1016/j.cej.2020.124585 |
| 英文摘要 | SnTe is an emerging lead-free IV-VI thermoelectric compound, but the high hole concentration, low Seebeck coefficient and high thermal conductivity limit its thermoelectric performance. In this work, we investigated the effect of n-type AgBiSe2 alloying on the electronic and thermal transport of SnTe, which had not been explored before. It was found that the introduction of AgBiSe2 reduced the hole concentration significantly, and improved the Seebeck coefficient in a wide temperature range. The density functional theory calculations confirmed that AgBiSe2 alloying led to a moderate band convergence and an increase in density of state effective mass. The AgBiSe2 alloying also decreased the lattice thermal conductivity due to the enhanced phonon scattering by point defect and nanoscale precipitates. Consequently, these multiple effects synergistically yielded a maximum ZT of 1.02 at 860 K, making SnTe-AgBiSe2 a promising thermoelectric material. |
| 学科主题 | Engineering |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20727]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Tan, XJ 2.Liu, GQ 3.Jiang, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 4.Jiang, J (corresponding author), Univ Chinese Acad Sci, Beijing 101408, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, Qiang,Guo, Zhe,Tan, Xiaojian,et al. Effects of AgBiSe2 on thermoelectric properties of SnTe[J]. CHEMICAL ENGINEERING JOURNAL,2020,390. |
| APA | Zhang, Qiang.,Guo, Zhe.,Tan, Xiaojian.,Mao, Lisha.,Yin, Yinong.,...&Jiang, Jun.(2020).Effects of AgBiSe2 on thermoelectric properties of SnTe.CHEMICAL ENGINEERING JOURNAL,390. |
| MLA | Zhang, Qiang,et al."Effects of AgBiSe2 on thermoelectric properties of SnTe".CHEMICAL ENGINEERING JOURNAL 390(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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