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Enhanced thermoelectric performance of PbTe based materials by Bi doping and introducing MgO nanoparticles
Zhu, Chen1,2; Zhang, Jian1; Ming, Hongwei1,2; Lou, Xunuo3; Huang, Lulu1,2; Chen, Tao1,2; Zhang, Baoli1,4; Li, Di1; Xin, Hongxing1; Qin, Xiaoying1
2020-07-27
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Corresponding AuthorZhang, Jian(zhangjian@issp.ac.cn) ; Li, Di(lidi@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn)
Abstractp-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.
DOI10.1063/5.0013039
WOS KeywordTHERMAL-CONDUCTIVITY ; LEAD ; NANOCOMPOSITES ; CONVERGENCE
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[51972307] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11674322]
Funding OrganizationNatural Science Foundation of China
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000559784100001
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/70711
Collection中国科学院合肥物质科学研究院
Corresponding AuthorZhang, Jian; Li, Di; Qin, Xiaoying
Affiliation1.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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