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

文献类型：期刊论文

作者Zhu, Chen1,3; Zhang, Jian3; Ming, Hongwei1,3; Lou, Xunuo4; Huang, Lulu1,3; Chen, Tao1,3; Zhang, Baoli2,3; Li, Di3; Xin, Hongxing3; Qin, Xiaoying3
刊名APPLIED PHYSICS LETTERS
出版日期2020-07-27
卷号117
ISSN号0003-6951
DOI10.1063/5.0013039
通讯作者Zhang, Jian(zhangjian@issp.ac.cn) ; Li, Di(lidi@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn)
英文摘要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.
WOS关键词THERMAL-CONDUCTIVITY ; LEAD ; NANOCOMPOSITES ; CONVERGENCE
资助项目Natural Science Foundation of China[51972307] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11674322]
WOS研究方向Physics
语种英语
WOS记录号WOS:000559784100001
出版者AMER INST PHYSICS
资助机构Natural Science Foundation of China
源URL[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.Univ Sci & Technol China, Hefei 230026, Peoples R China
2.Anhui Univ, Hefei 230601, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
4.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, MIIT Key Lab Adv Metall & Intermetall Mat Technol, Nanjing 210094, 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).

入库方式： OAI收割

来源：合肥物质科学研究院

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