Thermoelectric Performance Optimization and Phase Transition of GeTe by Alloying with Orthorhombic CuSbSe2
文献类型：期刊论文
| 作者 | Man, Na; Cai, Jianfeng; Guo, Zhe; Liu, Guoqiang; Sun, Peng; Wang, Hongxiang; Zhang, Qiang; Tan, Xiaojian; Yin, Yinong; Jiang, Jun |
| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 4期号:4页码:4242-4247 |
| 关键词 | THERMAL-CONDUCTIVITY BAND CONVERGENCE FIGURE MERIT REALIZATION SUPPRESSION HEAT BI |
| 英文摘要 | GeTe-based compounds are promising thermoelectric materials at medium temperature, while the performance of the GeTe matrix is at the mercy of its high hole concentration and high thermal conductivity. This work reports the thermoelectric performance optimization of GeTe by alloying with CuSbSe2. With only 5% CuSbSe2 being introduced, the p-type hole concentration is greatly decreased from similar to 10(21) to similar to 10(20) cm(-3), and the thermal conductivity at room temperature is reduced by more than 70%. Interestingly, the alloying of CuSbSe2 also induces a crystal structure transition of GeTe which results in the cubic structure of GeTe at room temperature, in spite of the noncubic structure of orthorhombic CuSbSe2. Owing to the phase transition and carrier concentration optimization, the thermoelectric performance is largely improved relative to the pristine compound. Eventually, a ZT(max) similar to 1.65 is achieved at 630 K. It is also indicated that the performance of GeTe-CuSbSe2 could be further improved by the careful tuning of carrier concentration. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21999]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Jiang, J (corresponding author), Univ Chinese Acad Sci, Beijing 101408, Peoples R China. 2.Jiang, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 3.Liu, GQ 4.Tan, XJ |
| 推荐引用方式 GB/T 7714 | Man, Na,Cai, Jianfeng,Guo, Zhe,et al. Thermoelectric Performance Optimization and Phase Transition of GeTe by Alloying with Orthorhombic CuSbSe2[J]. ACS APPLIED ENERGY MATERIALS,2021,4(4):4242-4247. |
| APA | Man, Na.,Cai, Jianfeng.,Guo, Zhe.,Liu, Guoqiang.,Sun, Peng.,...&Jiang, Jun.(2021).Thermoelectric Performance Optimization and Phase Transition of GeTe by Alloying with Orthorhombic CuSbSe2.ACS APPLIED ENERGY MATERIALS,4(4),4242-4247. |
| MLA | Man, Na,et al."Thermoelectric Performance Optimization and Phase Transition of GeTe by Alloying with Orthorhombic CuSbSe2".ACS APPLIED ENERGY MATERIALS 4.4(2021):4242-4247. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。