Intrinsically High Thermoelectric Performance in AgInSe2 n-Type Diamond-Like Compounds
文献类型：期刊论文
| 作者 | Qiu, Pengfei; Qin, Yuting; Zhang, Qihao1; Li, Ruoxi2; Yang, Jiong2; Song, Qingfeng1; Tang, Yunshan; Bai, Shengqiang; Shi, Xun; Chen, Lidong |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 5期号:3 |
| 关键词 | ab initio calculations diamond-like compounds thermoelectric materials thermoelectric modules |
| ISSN号 | 2198-3844 |
| DOI | 10.1002/advs.201700727 |
| 英文摘要 | Diamond-like compounds are a promising class of thermoelectric materials, very suitable for real applications. However, almost all high-performance diamond-like thermoelectric materials are p-type semiconductors. The lack of high-performance n-type diamond-like thermoelectric materials greatly restricts the fabrication of diamond-like material-based modules and their real applications. In this work, it is revealed that n-type AgInSe2 diamond-like compound has intrinsically high thermoelectric performance with a figure of merit (zT) of 1.1 at 900 K, comparable to the best p-type diamond-like thermoelectric materials reported before. Such high zT is mainly due to the ultralow lattice thermal conductivity, which is fundamentally limited by the low-frequency Ag-Se "cluster vibrations," as confirmed by ab initio lattice dynamic calculations. Doping Cd at Ag sites significantly improves the thermoelectric performance in the low and medium temperature ranges. By using such high-performance n-type AgInSe2-based compounds, the diamond-like thermoelectric module has been fabricated for the first time. An output power of 0.06 W under a temperature difference of 520 K between the two ends of the module is obtained. This work opens a new window for the applications using the diamond-like thermoelectric materials. |
| 学科主题 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000428310500009 |
| 出版者 | WILEY |
| 资助机构 | This work was supported by the National Natural Science Foundation of China (NSFC) under Grant Nos. 11234012 and 51625205, the Key Research Program of Chinese Academy of Sciences (Grant No. KGZD-EW-T06), and the Shanghai Government (Grant No. 15JC1400301). P.F. thanks the support from the Youth Innovation Promotion Association, CAS (Grant No. 2016232). The authors thank Prof. Ctirad Uher in the University of Michigan for helpful discussions and language polishing. ; This work was supported by the National Natural Science Foundation of China (NSFC) under Grant Nos. 11234012 and 51625205, the Key Research Program of Chinese Academy of Sciences (Grant No. KGZD-EW-T06), and the Shanghai Government (Grant No. 15JC1400301). P.F. thanks the support from the Youth Innovation Promotion Association, CAS (Grant No. 2016232). The authors thank Prof. Ctirad Uher in the University of Michigan for helpful discussions and language polishing. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25117]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Pengfei,Qin, Yuting,Zhang, Qihao,et al. Intrinsically High Thermoelectric Performance in AgInSe2 n-Type Diamond-Like Compounds[J]. ADVANCED SCIENCE,2018,5(3). |
| APA | Qiu, Pengfei.,Qin, Yuting.,Zhang, Qihao.,Li, Ruoxi.,Yang, Jiong.,...&Chen, Lidong.(2018).Intrinsically High Thermoelectric Performance in AgInSe2 n-Type Diamond-Like Compounds.ADVANCED SCIENCE,5(3). |
| MLA | Qiu, Pengfei,et al."Intrinsically High Thermoelectric Performance in AgInSe2 n-Type Diamond-Like Compounds".ADVANCED SCIENCE 5.3(2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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