Aguilarite Ag4SSe Thermoelectric Material: Natural Mineral with Low Lattice Thermal Conductivity
文献类型：期刊论文
| 作者 | Wang, Tuo; Zhao, Kunpeng; Qiu, Pengfei; Song, Qingfeng; Chen, Lidong; Shi, Xun |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2019-04-03 |
| 卷号 | 11期号:13页码:12632 |
| 关键词 | thermoelectric aguilarite liquid-like deficiency single parabolic band |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.8b22741 |
| 文献子类 | Article |
| 英文摘要 | Ag4SSe, named as aguilarite in mineralogy, belongs to the family of liquid-like superionic compounds at middle temperature, but its thermoelectric (TE) properties are rarely investigated so far. In this study, a series of Agdeficient Ag4SSe samples have been synthesized by the melting annealing method. Their crystal structures, phase transition features, and electrical and thermal transport properties have been systematically investigated. It is found that Ag4SSe allows a small amount of Ag deficiency inside the lattice without altering the initial crystal structure and phase transition feature. The stoichiometric Ag4SSe has a low TE figure of merit (zT) of 0.24 at 613 K because of the overhigh carrier concentration. Introducing Ag deficiency in Ag4SSe significantly lowers the carrier concentration, yielding a greatly enhanced Seebeck coefficient and suppressed carrier thermal conductivity throughout the entire measured temperature range. A maximum TE zT of 0.53 is achieved at 493 K for Ag3.96SSe, about two times that for the stoichiometric Ag4SSe. The present study suggests that aguilarite Ag4SSe is a promising TE material applied at the middle temperature range. |
| 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/331005/27204]  |
| 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, Tuo,Zhao, Kunpeng,Qiu, Pengfei,et al. Aguilarite Ag4SSe Thermoelectric Material: Natural Mineral with Low Lattice Thermal Conductivity[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(13):12632. |
| APA | Wang, Tuo,Zhao, Kunpeng,Qiu, Pengfei,Song, Qingfeng,Chen, Lidong,&Shi, Xun.(2019).Aguilarite Ag4SSe Thermoelectric Material: Natural Mineral with Low Lattice Thermal Conductivity.ACS APPLIED MATERIALS & INTERFACES,11(13),12632. |
| MLA | Wang, Tuo,et al."Aguilarite Ag4SSe Thermoelectric Material: Natural Mineral with Low Lattice Thermal Conductivity".ACS APPLIED MATERIALS & INTERFACES 11.13(2019):12632. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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