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; 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.
	2017-07-14
发表期刊	JOURNAL OF MATERIALS CHEMISTRY A
ISSN	2050-7488
卷号	5 期号:26 页码:13392-13399
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.; 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.
部门归属	[wen, qiang ; li, xiaotong ; xu, feng ; tang, guodong] nanjing univ sci & technol, sch mat sci & engn, nanjing 210094, jiangsu, peoples r china ; [chang, cheng] beihang univ, sch mat sci & engn, beijing 10091, peoples r china ; [pan, lin] nanjing tech univ, coll mat sci & engn, nanjing 210009, peoples r china ; [yang, teng ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china ; [wang, zhihe] nanjing univ, dept phys, natl lab solid state microstruct, nanjing 210093, jiangsu, peoples r china ; [zhang, jian] chinese acad sci, inst solid state phys, key lab mat phys, hefei 230031, peoples r china ; [guo, huaihong] liaoning shihua univ, coll sci, fushun 113001, peoples r china
学科领域	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
资助者	Natural Science Foundation of Jiangsu Province [BK20161495]; National Natural Science Foundation of China [51331006, U1537204]; Fundamental Research Funds for the Central Universities [30917011206]
收录类别	SCI
语种	英语
WOS记录号	WOS:000404618200013
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78049
专题	中国科学院金属研究所
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.
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.,...&Yang, T .(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.