中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Decoupling Thermoelectric Performance and Stability in Liquid-Like Thermoelectric Materials

文献类型:期刊论文

作者Mao, Tao; Qiu, Pengfei; Hu, Ping; Du, Xiaolong; Zhao, Kunpeng; Wei, Tian-Ran; Xiao, Jie; Shi, Xun; Chen, Lidong
刊名ADVANCED SCIENCE
出版日期2019-12-31
关键词Cu2S liquid-like materials service stability thermoelectric
DOI10.1002/advs.201901598
文献子类Article; Early Access
英文摘要Liquid-like materials are one family of promising thermoelectric materials discovered in the past years due to their advantanges of ultrahigh thermoelectric figure of merit (zT), low cost, and environmental friendliness. However, their practial applications are greatly limited by the low service stability from the Cu/Ag metal deposition under large current and/or temperature gradient. Both high zT for high efficiency and large critical voltage for good stability are required for liquid-like materials, but they are usually strongly correlated and hard to be tuned individually. Herein, based on the thermodynamic analysis, it is shown that such a correlation can be decoupled through doping immobile ions into the liquid-like sublattice. Taking Cu2-delta S as an example, doping immobile Fe ions in Cu1.90S scarcely degrades the initial large critical voltage, but significantly enhances the zT to 1.5 at 1000 K by tuning the carrier concentration to the optimal range. Combining the low-cost and environmentally friendly features, these Fe-doped Cu2-delta S-based compounds show great potential in civil applications. This study sheds light on the realization of both good stability and high performance for many other liquid-like thermoelectric materials that have not been considered for real applications before.
WOS关键词TRANSPORT-PROPERTIES ; CHEMICAL-STABILITY ; CONDUCTIVITY ; ENERGY ; IONS
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
出版者WILEY
源URL[http://ir.sic.ac.cn/handle/331005/27522]  
专题中国科学院上海硅酸盐研究所
推荐引用方式
GB/T 7714
Mao, Tao,Qiu, Pengfei,Hu, Ping,et al. Decoupling Thermoelectric Performance and Stability in Liquid-Like Thermoelectric Materials[J]. ADVANCED SCIENCE,2019.
APA Mao, Tao.,Qiu, Pengfei.,Hu, Ping.,Du, Xiaolong.,Zhao, Kunpeng.,...&Chen, Lidong.(2019).Decoupling Thermoelectric Performance and Stability in Liquid-Like Thermoelectric Materials.ADVANCED SCIENCE.
MLA Mao, Tao,et al."Decoupling Thermoelectric Performance and Stability in Liquid-Like Thermoelectric Materials".ADVANCED SCIENCE (2019).

入库方式: OAI收割

来源:上海硅酸盐研究所

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