Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles

doi:10.1063/5.0013039

HFCAS OpenIR

	Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles
	Zhu, Chen 1,2; Zhang, Jian1 ; Ming, Hongwei 1,2; Lou, Xunuo 3; Huang, Lulu 1,2; Chen, Tao 1,2; Zhang, Baoli 1,4; Li, Di1 ; Xin, Hongxing1 ; Qin, Xiaoying1
	2020-07-27
Source Publication	APPLIED PHYSICS LETTERS
ISSN	0003-6951
Corresponding Author	Zhang, Jian(zhangjian@issp.ac.cn) ; Li, Di(lidi@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn)
Abstract	p-type PbTe has long been realized as an excellent thermoelectric (TE) material in the mediate temperature range; however, its counterpart, n-type PbTe, presents poor TE performance. In order to enhance the thermoelectric performance of n-type PbTe, Pb0.995Bi0.005Te-based composites incorporated with MgO nanoparticles have been prepared, and their thermoelectric properties are investigated. The results show that the power factor can be enhanced by incorporation of MgO nanoparticles at high temperature due to the optimized carrier concentration and remarkable energy filtering effects, and the reduced lattice thermal conductivity is obtained owing to interface scattering. Consequently, the sample Pb0.995Bi0.005Te+0.3wt. % MgO presents the largest ZT value, reaching 1.4 at 773K, indicating that incorporation of MgO in Pb0.995Bi0.005Te is an effective approach to improve its thermoelectric performance.
DOI	10.1063/5.0013039
WOS Keyword	THERMAL-CONDUCTIVITY ; LEAD ; NANOCOMPOSITES ; CONVERGENCE
Indexed By	SCI
Language	英语
Funding Project	Natural Science Foundation of China[51972307] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11674322]
Funding Organization	Natural Science Foundation of China
WOS Research Area	Physics
WOS Subject	Physics, Applied
WOS ID	WOS:000559784100001
Publisher	AMER INST PHYSICS
Citation statistics	Cited Times:9[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.hfcas.ac.cn:8080/handle/334002/70711
Collection	中国科学院合肥物质科学研究院
Corresponding Author	Zhang, Jian; Li, Di; Qin, Xiaoying
Affiliation	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, MIIT Key Lab Adv Metall & Intermetall Mat Technol, Nanjing 210094, Peoples R China 4.Anhui Univ, Hefei 230601, Peoples R China
Recommended Citation GB/T 7714	Zhu, Chen,Zhang, Jian,Ming, Hongwei,et al. Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles[J]. APPLIED PHYSICS LETTERS,2020,117.
APA	Zhu, Chen.,Zhang, Jian.,Ming, Hongwei.,Lou, Xunuo.,Huang, Lulu.,...&Qin, Xiaoying.(2020).Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles.APPLIED PHYSICS LETTERS,117.
MLA	Zhu, Chen,et al."Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles".APPLIED PHYSICS LETTERS 117(2020).

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