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
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
通讯作者	Zhang, Jian(zhangjian@issp.ac.cn) ; Li, Di(lidi@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn)
摘要	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
关键词[WOS]	THERMAL-CONDUCTIVITY ; LEAD ; NANOCOMPOSITES ; CONVERGENCE
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[51972307] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11674322]
项目资助者	Natural Science Foundation of China
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000559784100001
出版者	AMER INST PHYSICS
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/70711
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Jian; Li, Di; Qin, Xiaoying
作者单位	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
推荐引用方式 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).