Ternary Compounds Cu3RTe3 (R = Y, Sm, and Dy): A Family of New Thermoelectric Materials with Trigonal Structures
文献类型：期刊论文
| 作者 | Wang, T; Xiong, YF; Huang, H; Qiu, PF; Zhao, KP; Yang, J; Xiao, J; Shi, X; Chen, LD |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2020-09-09 |
| 期号 | 36页码:40486 |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.0c09918 |
| 文献子类 | Article |
| 英文摘要 | In this work, we report a series of Cu3RTe3 (R = Y, Sm, and Dy) ternary compounds with a trigonal structure (R (3) over bar) as a family of new thermoelectric materials. First-principles calculations show that Cu3RTe3 (R = Y, Sm, and Dy) compounds are semiconductors with similar band structures and moderate band gaps (0.69-0.82 eV). The synthesized polycrystalline Cu3RTe3 (R = Y, Sm, and Dy) compounds possess moderate carrier concentrations (0.8-2.2 x 10(20) cm(-3)) and density-of-state effective masses (around 1.1 m(e)), yielding decent electrical transport performance. Furthermore, intrinsically low lattice thermal conductivities, below 1 W m(-1) K-1 at 300-900 K, originating from the heavy average atomic masses and large number of atoms in the unit cell, are observed for Cu3RTe3 (R = Y, Sm, and Dy). Finally, Cu3DyTe3 demonstrates a peak dimensionless figure of merit of 0.9 at 900 K, which is among the highest reported for the Cu/Ag-based tellurides. |
| WOS关键词 | CRYSTAL-STRUCTURE ; PERFORMANCE ; CHALCOGENIDES ; ENERGY ; TB |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27763]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, T,Xiong, YF,Huang, H,et al. Ternary Compounds Cu3RTe3 (R = Y, Sm, and Dy): A Family of New Thermoelectric Materials with Trigonal Structures[J]. ACS APPLIED MATERIALS & INTERFACES,2020(36):40486. |
| APA | Wang, T.,Xiong, YF.,Huang, H.,Qiu, PF.,Zhao, KP.,...&Chen, LD.(2020).Ternary Compounds Cu3RTe3 (R = Y, Sm, and Dy): A Family of New Thermoelectric Materials with Trigonal Structures.ACS APPLIED MATERIALS & INTERFACES(36),40486. |
| MLA | Wang, T,et al."Ternary Compounds Cu3RTe3 (R = Y, Sm, and Dy): A Family of New Thermoelectric Materials with Trigonal Structures".ACS APPLIED MATERIALS & INTERFACES .36(2020):40486. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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。