Enhanced thermoelectric performance of BiCuSeO by increasing Seebeck coefficient through magnetic ion incorporation

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	Enhanced thermoelectric performance of BiCuSeO by increasing Seebeck coefficient through magnetic ion incorporation
	Wen, Qiang ; Chang, Cheng ; Pan, Lin ; Li, Xiaotong ; Yang, Teng ; Guo, Huaihong ; Wang, Zhihe ; Zhang, Jian ; Xu, Feng ; Zhang, Zhidong ; Tang, Guodong
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017-07-14
卷号	5 期号:26 页码:13392-13399
ISSN号	2050-7488
通讯作者	Tang, GD (reprint author), Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China. ; Yang, T (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
中文摘要	Here, a new concept is proposed in which magnetic ions are incorporated into BiCuSeO to obtain a remarkable Seebeck coefficient, higher electrical conductivity and lower thermal conductivity for optimizing thermoelectric performance. We show that the vast increase in the Seebeck coefficient is caused by the introduction of spin entropy by magnetic Ni ions. Meanwhile, Ba and magnetic ion Ni co-doping leads to enhanced electrical conductivity. The remarkably enhanced Seebeck coefficient coupled with enhanced electrical conductivity result in enhanced power factor. Dual-atomic point-defect scattering generates low thermal conductivity (0.54 W m(-1) K-1). The enhanced power factor and low thermal conductivity lead to high a ZT of 0.97 at 923 K for Bi0.875Ba0.125Cu0.85Ni0.15SeO. This study opens a new pathway for broadening and designing prospective thermoelectric materials.
学科主题	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
收录类别	SCI
资助信息	Natural Science Foundation of Jiangsu Province [BK20161495]; National Natural Science Foundation of China [51331006, U1537204]; Fundamental Research Funds for the Central Universities [30917011206]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78049]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Wen, Qiang,Chang, Cheng,Pan, Lin,et al. Enhanced thermoelectric performance of BiCuSeO by increasing Seebeck coefficient through magnetic ion incorporation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(26):13392-13399.
APA	Wen, Qiang.,Chang, Cheng.,Pan, Lin.,Li, Xiaotong.,Yang, Teng.,...&Tang, Guodong.(2017).Enhanced thermoelectric performance of BiCuSeO by increasing Seebeck coefficient through magnetic ion incorporation.JOURNAL OF MATERIALS CHEMISTRY A,5(26),13392-13399.
MLA	Wen, Qiang,et al."Enhanced thermoelectric performance of BiCuSeO by increasing Seebeck coefficient through magnetic ion incorporation".JOURNAL OF MATERIALS CHEMISTRY A 5.26(2017):13392-13399.