Microstructure and thermoelectric performance of n-type Co4Sb11.3Te0.5Se0.2 skutterudite synthesized via microwave heating

doi:10.1063/1.5079510

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	Microstructure and thermoelectric performance of n-type Co4Sb11.3Te0.5Se0.2 skutterudite synthesized via microwave heating
	Lei, Ying 2,3; Gao, Wensheng 2; Zheng, Rui 2; Li, Yu 2; Chen, Wen 4; Ma, Leiqiang 2; Wan, Rundong 1; Zhou, Hongwei 3
刊名	AIP Advances
	2019-02-01
卷号	9 期号:2
关键词	Antimony compounds Carrier concentration Hall mobility Hole mobility Microstructure Microwave heating Skutterudites Spark plasma sintering Thermal conductivity Thermoelectricity Matrix grain size Microwave synthesis Single phase Spark plasma sintering techniques Synthetic methods Thermal transport properties Thermoelectric performance Total thermal conductivities
DOI	10.1063/1.5079510
英文摘要	The Te-/Se-doped n-type Co4Sb11.3Te0.5Se0.2 skutterudite thermoelectric bulk was successfully fabricated by the combination of microwave synthesis and spark plasma sintering technique. The microstructure and the electrical and thermal transport properties have been systematically investigated. The experimental results show that nearly single-phase skutterudites grow in merely 5 min microwave heating. The average matrix grain size of Co4Sb11.3Te0.5Se0.2 is ∼2 μm. The carrier concentration and mobility of Co4Sb11.3Te0.5Se0.2 are 1.943×1020 n/cm-3 and 23.17 cm2V-1s-1, respectively. The maximum Seebeck coefficient is -204 μVK-1. The lattice and total thermal conductivity from room temperature to 773K are 2.11∼3.32 and 2.88∼3.78 Wm-1K-1, respectively. The highest ZT of 0.59 of Co4Sb11.3Te0.5Se0.2 was achieved at 673 K. The present synthetic method is superior especially in term of the synthesis efficiency. © 2019 Author(s).
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	American Institute of Physics Inc.
WOS记录号	WOS:000460029500061
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150636]
专题	兰州理工大学
作者单位	1.College of Materials Science and Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Chenggong New District, Kunming; 650093, China 2.School of Metallurgy Engineering, Anhui University of Technology, Maxiang Road, Ma’anshan; 243032, China; 3.State key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, 287 Langongping Road, Lanzhou; 730050, China; 4.Institute of Mineral Resources Development and Utilization, Changsha Research Institute of Mining and Metallurgy CO., LTD, 966 South Lushan Road, Changsha; 410012, China;
推荐引用方式 GB/T 7714	Lei, Ying,Gao, Wensheng,Zheng, Rui,et al. Microstructure and thermoelectric performance of n-type Co4Sb11.3Te0.5Se0.2 skutterudite synthesized via microwave heating[J]. AIP Advances,2019,9(2).
APA	Lei, Ying.,Gao, Wensheng.,Zheng, Rui.,Li, Yu.,Chen, Wen.,...&Zhou, Hongwei.(2019).Microstructure and thermoelectric performance of n-type Co4Sb11.3Te0.5Se0.2 skutterudite synthesized via microwave heating.AIP Advances,9(2).
MLA	Lei, Ying,et al."Microstructure and thermoelectric performance of n-type Co4Sb11.3Te0.5Se0.2 skutterudite synthesized via microwave heating".AIP Advances 9.2(2019).