Phonon Engineering for Thermoelectric Enhancement of p-Type Bismuth Telluride by a Hot-Pressing Texture Method
文献类型：期刊论文
| 作者 | Wang, Hongxiang; Luo, Guoqiang; Tan, Chang; Xiong, Chenglong; Guo, Zhe; Yin, Yinong; Yu, Bo; Xiao, Yukun; Hu, Haoyang; Liu, Guoqiang |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:28页码:31612-31618 |
| 关键词 | THERMAL-CONDUCTIVITY PERFORMANCE FIGURE MERIT BI0.48SB1.52TE3 (BI,SB)(2)TE-3 SKUTTERUDITES DENSITY POWER PBTE |
| DOI | 10.1021/acsami.0c07376 |
| 英文摘要 | Phonon engineering is a core stratagem to improve the thermoelectric performance, and multi-scale defects are expected to scatter a broad range of phonons and compress the lattice thermal conductivity. Here, we demonstrate obviously enhanced thermoelectric properties in Bi0.48Sb1.52Te3 alloy by a hot-pressing texture method along the axial direction of a zone-melted ingot. It is found that a plastic deformation of grain refinement and rearrangement occurs during the textured pressing process. Although the obtained power factor is slightly decreased, a large amount of grain boundaries emerges in the textured samples and dense dislocations are observed around the boundaries and inside the grains. These additional phonon scattering centers can effectively scatter the low- and mid-frequency phonons, and the corresponding lattice thermal conductivity is significantly reduced to only 50% of that of zone-melted samples. Consequently, the maximum figure of merit (ZT) reaches 1.44 at 330 K and the average ZT (300-380 K) reaches 1.38. This study suggests that the simple hot-pressing texture technique is a promising method to significantly optimize the cooling capacity of Bi0.48Sb1.52Te3-based thermoelectric refrigeration. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20650]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Jiang, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Noudem, JG (corresponding author), Normandie Univ, ENSICAEN, UNICAEN, CNRS,CRISMAT, F-14000 Caen, France. 3.Tan, XJ 4.Jiang, J (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, Hongxiang,Luo, Guoqiang,Tan, Chang,et al. Phonon Engineering for Thermoelectric Enhancement of p-Type Bismuth Telluride by a Hot-Pressing Texture Method[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(28):31612-31618. |
| APA | Wang, Hongxiang.,Luo, Guoqiang.,Tan, Chang.,Xiong, Chenglong.,Guo, Zhe.,...&Jiang, Jun.(2020).Phonon Engineering for Thermoelectric Enhancement of p-Type Bismuth Telluride by a Hot-Pressing Texture Method.ACS APPLIED MATERIALS & INTERFACES,12(28),31612-31618. |
| MLA | Wang, Hongxiang,et al."Phonon Engineering for Thermoelectric Enhancement of p-Type Bismuth Telluride by a Hot-Pressing Texture Method".ACS APPLIED MATERIALS & INTERFACES 12.28(2020):31612-31618. |
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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