Enhanced Thermoelectric Performance of Quaternary Cu2-2xAg2xSe1-xSx Liquid-like Chalcogenides
文献类型：期刊论文
| 作者 | Guan, Mengjia; Zhao, Kunpeng; Qiu, Pengfei; Ren, Dudi; Shi, Xun; Chen, Lidong |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2019-04-10 |
| 卷号 | 11期号:14页码:13433 |
| 关键词 | thermoelectric liquidlike coalloying chalcogenides mass fluctuation |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.9b01643 |
| 文献子类 | Article |
| 英文摘要 | Liquid-like binary Cu2-delta X (X = S, Se, and Te) chalcogenides and their ternary solid solutions have gained notable attention in thermoelectrics due to their interesting and abnormal thermal and electrical transport properties. However, previous studies mainly focus on a single element alloying at either an anion or cation site whereas the investigation on cation/anion co-alloying is very rare so far. Here, a series of quaternary Cu2-2xAg2xSe1-xSx (x = 0.01, 0.03, 0.05, 0.1, 0.15) liquid-like copper chalcogenide materials have been fabricated and the effects of Ag/S co-alloying on the thermoelectric properties of Cu2Se have been systematically studied. It is found that all compounds are mixed phases at room temperature but single cubic phase at high temperatures. The introduction of Ag and S in Cu2Se brings about a large mass fluctuation rather than strain field fluctuation that effectively suppresses the lattice thermal conductivity. Furthermore, on increasing the Ag and S contents, the high electrical conductivity of pristine Cu2Se is well tuned to the optimal range derived from the single parabolic band model analysis. Consequently, a peak zT of 1.6 at 900 K is achieved in Cu1.8Ag0.2Se0.9S0.1, which is about 33% higher than that of binary Cu2Se. |
| 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/331005/27196]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Guan, Mengjia,Zhao, Kunpeng,Qiu, Pengfei,et al. Enhanced Thermoelectric Performance of Quaternary Cu2-2xAg2xSe1-xSx Liquid-like Chalcogenides[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(14):13433. |
| APA | Guan, Mengjia,Zhao, Kunpeng,Qiu, Pengfei,Ren, Dudi,Shi, Xun,&Chen, Lidong.(2019).Enhanced Thermoelectric Performance of Quaternary Cu2-2xAg2xSe1-xSx Liquid-like Chalcogenides.ACS APPLIED MATERIALS & INTERFACES,11(14),13433. |
| MLA | Guan, Mengjia,et al."Enhanced Thermoelectric Performance of Quaternary Cu2-2xAg2xSe1-xSx Liquid-like Chalcogenides".ACS APPLIED MATERIALS & INTERFACES 11.14(2019):13433. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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