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Simultaneously enhanced power factor and phonon scattering in Bi0.4Sb1.6Te3 alloy doped with germanium

文献类型：期刊论文

作者Wang, Y. S.1,2; Huang, L. L.1,2; Zhu, C.1,2; Zhang, J.1; Li, D.1; Xin, H. X.1; Danish, M. H.1,2; Qin, X. Y.1
刊名SCRIPTA MATERIALIA
出版日期2018-09-01
卷号154页码:118-122
关键词Thermoelectric materials Alloys Hot pressing Ge doping
ISSN号1359-6462
DOI10.1016/j.scriptamat.2018.05.026
通讯作者Qin, X. Y.(xyqin@issp.ac.cn)
英文摘要The thermoelectric properties of Ge-doped Bi0.4Sb1.6-xGexTe3 (x = 0, 0.01, 0.015, 0.02) were investigated in the temperature range from 300 K to 525 K. The results show that Ge doping brings about 13-52% increase in electrical conductivity due to the increase of hole concentration, and 5-11% decrease in thermal conductivity owing to enhanced phonon scattering by the dopant atoms. As a result, a maximum thermoelectric figure of merit (ZT) reaches 1.48 at 350 K for Bi0.4Sb1.59Ge0.01Te3, which is similar to 25% larger than that of Bi0.4Sb1.6Te3. Present results demonstrate that Ge doping is an effective way to enhance the thermoelectric performance of Bi0.4Sb1.6Te3 alloy. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
WOS关键词HIGH-THERMOELECTRIC PERFORMANCE ; NANOCOMPOSITES ; CONDUCTIVITY ; FIGURE ; MERIT
资助项目Natural Science Foundation of China[11674322] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11464048] ; Natural Science Foundation of China[11374306]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000440775000024
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/37745]  
专题合肥物质科学研究院_中科院固体物理研究所
中科院固体物理研究所_专题未命名
通讯作者Qin, X. Y.
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Y. S.,Huang, L. L.,Zhu, C.,et al. Simultaneously enhanced power factor and phonon scattering in Bi0.4Sb1.6Te3 alloy doped with germanium[J]. SCRIPTA MATERIALIA,2018,154:118-122.
APA Wang, Y. S..,Huang, L. L..,Zhu, C..,Zhang, J..,Li, D..,...&Qin, X. Y..(2018).Simultaneously enhanced power factor and phonon scattering in Bi0.4Sb1.6Te3 alloy doped with germanium.SCRIPTA MATERIALIA,154,118-122.
MLA Wang, Y. S.,et al."Simultaneously enhanced power factor and phonon scattering in Bi0.4Sb1.6Te3 alloy doped with germanium".SCRIPTA MATERIALIA 154(2018):118-122.

入库方式： OAI收割

来源：合肥物质科学研究院

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