Investigating the thermoelectric performance of n-type SnSe: the synergistic effect of NbCl(5)doping and dislocation engineering
文献类型：期刊论文
| 作者 | Cai, Jianfeng; Zhang, Yan; Yin, Yinong; Tan, Xiaojian; Duan, Sichen; Liu, Guo-Qiang; Hu, Haoyang; Xiao, Yukun; Ge, Zhenhua; Jiang, Jun |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2020 |
| 卷号 | 8期号:38页码:13244-13252 |
| 关键词 | POLYCRYSTALLINE SNSE EFFICIENCY POWER ZT |
| DOI | 10.1039/d0tc02959a |
| 英文摘要 | Tin selenide (SnSe) is a promising thermoelectric material because of its advantageous electronic structure and low thermal conductivity. In this work, n-type polycrystalline SnSe(0.95)doped with a new dopant NbCl(5)was prepared using vacuum melting and hot-pressing (HP) methods, which resulted in a textured microstructure and anisotropic thermoelectric performance. Several state-of-the-art characterization studiesviaXRD, SEM, and XPS were conducted to analyze the crystal phase, microstructure, and composition of the samples. The TEM observation showed that large amounts of dislocations and nanocrystalline grains existed in our polycrystalline SnSe0.95, which resulted in lower thermal conductivity and better mechanical performance compared to previous reports. The electrical transport measurements along the parallel and perpendicular directions to the HP pressure revealed that the scattering behavior of charge carriers was complex and had a profound effect on the overall thermoelectric properties. Finally, a maximumZTvalue of 1.22 at 790 K was attained in the 0.5% NbCl5-doped SnSe(0.95)sample, which exceeds most of the n-type polycrystalline SnSe systems doped with other halides. |
| 学科主题 | Materials Science ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20419]  |
| 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.Ge, ZH (corresponding author), Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China. 3.Yin, YN 4.Jiang, J (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cai, Jianfeng,Zhang, Yan,Yin, Yinong,et al. Investigating the thermoelectric performance of n-type SnSe: the synergistic effect of NbCl(5)doping and dislocation engineering[J]. JOURNAL OF MATERIALS CHEMISTRY C,2020,8(38):13244-13252. |
| APA | Cai, Jianfeng.,Zhang, Yan.,Yin, Yinong.,Tan, Xiaojian.,Duan, Sichen.,...&Jiang, Jun.(2020).Investigating the thermoelectric performance of n-type SnSe: the synergistic effect of NbCl(5)doping and dislocation engineering.JOURNAL OF MATERIALS CHEMISTRY C,8(38),13244-13252. |
| MLA | Cai, Jianfeng,et al."Investigating the thermoelectric performance of n-type SnSe: the synergistic effect of NbCl(5)doping and dislocation engineering".JOURNAL OF MATERIALS CHEMISTRY C 8.38(2020):13244-13252. |
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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