Intrinsically low thermal conductivity in a p-type semiconductor SrOCuBiSe2 with a [SrO]-intercalated CuBiSe2 structure
文献类型：期刊论文
| 作者 | Luo, MJ; Bu, KJ; Zhang, X; Huang, J; Wang, RQ; Huang, FQ |
| 刊名 | CHEMICAL COMMUNICATIONS
 |
| 出版日期 | 2020-04-21 |
| 期号 | 31页码:4356 |
| ISSN号 | 1359-7345 |
| DOI | 10.1039/d0cc00035c |
| 文献子类 | Article |
| 英文摘要 | Designing new semiconductors with an extremely low thermal conductivity is of considerable significance. In this study, we successfully synthesized a new semiconductor SrOCuBiSe2 with an intrinsically low thermal conductivity via the molten salt method. It possesses a typical multicomponent layered structure which is composed of alternatively stacked [CuBiSe2] (electronic conduction unit, ECU) and [SrO] (electronic insulation unit, EIU) layers. Its intrinsically low thermal conductivity (kappa = 0.45 W m(-1) K-1 at 700 K) is attributed to the dual effects of high atomic displacement parameter and extremely large Gruneisen parameter, which are caused by rattling vibration of Cu atoms and lone-pair electrons of Bi atoms, respectively. Such knowledge highlights the importance of lone-pair electrons in impelling the phonon anharmonicity and multicomponent structure design concept, providing a stepping stone to the design of new semiconductors with a low thermal conductivity. |
| WOS关键词 | THERMOELECTRIC PERFORMANCE ; POLYCRYSTALLINE SNSE ; SEEBECK COEFFICIENT ; CHALCOGENIDES ; CHALCOSTIBITE ; EMPLECTITE |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28123]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Luo, MJ,Bu, KJ,Zhang, X,et al. Intrinsically low thermal conductivity in a p-type semiconductor SrOCuBiSe2 with a [SrO]-intercalated CuBiSe2 structure[J]. CHEMICAL COMMUNICATIONS,2020(31):4356. |
| APA | Luo, MJ,Bu, KJ,Zhang, X,Huang, J,Wang, RQ,&Huang, FQ.(2020).Intrinsically low thermal conductivity in a p-type semiconductor SrOCuBiSe2 with a [SrO]-intercalated CuBiSe2 structure.CHEMICAL COMMUNICATIONS(31),4356. |
| MLA | Luo, MJ,et al."Intrinsically low thermal conductivity in a p-type semiconductor SrOCuBiSe2 with a [SrO]-intercalated CuBiSe2 structure".CHEMICAL COMMUNICATIONS .31(2020):4356. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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