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Simultaneous increase in conductivity and phonon scattering in a graphene nanosheets/(Bi2Te3)(0.2)(Sb2Te3)(0.8) thermoelectric nanocomposite

文献类型：期刊论文

作者Li, Cong; Qin, Xiaoying; Li, Yuanyue; Li, Di; Zhang, Jian; Guo, Haifeng; Xin, Hongxing; Song, Chunjun
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2016-03-15
卷号661期号:无页码:389-395
关键词Thermoelectric Bisbte Phonon Scattering
DOI10.1016/j.jallcom.2015.11.217
文献子类Article
英文摘要A thermoelectric nanocomposite of Bi0.4Sb1.6Te3 (BiSbTe) incorporated with the graphene nanosheets (GNs) has been synthesized and studied. The reduction of the carrier mobility is much less than the increase of the carrier concentration, resulting in the increase in conductivity at a low graphene nanosheets content. Simultaneously, graphene nanosheets causes 20-30% reduction in thermal conductivity (k) owing to phonons blocking of nanosheets as well as phase boundaries. As a result, high dimensionless figure of merit (ZT) values of up to 1.29 (300 K) and 1.54 (440 K) are obtained in Bi0.4Sb1.6Te3 incorporated with only 0.3 vol.% and 0.4 vol.% graphene nanosheets, respectively, demonstrating that the thermoelectric performance of the BiSbTe alloy can be improved effectively through incorporation of GNs. (C) 2015 Elsevier B.V. All rights reserved.
WOS关键词BISMUTH-ANTIMONY TELLURIDE ; BISBTE-BASED COMPOSITES ; DENSITY-OF-STATES ; PERFORMANCE ; MERIT ; BI2TE3 ; FIGURE ; TE ; NANOSTRUCTURES ; NANOPARTICLES
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000367521200054
资助机构National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Natural Science Foundation of China(11374306 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; National Basic Research Program (973) of China(2012CB922003 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 11174292 ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 2015CB921201) ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 51101150 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 50972146 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 10904144 ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252) ; 51202252)
源URL[http://ir.hfcas.ac.cn/handle/334002/21328]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Li, Cong,Qin, Xiaoying,Li, Yuanyue,et al. Simultaneous increase in conductivity and phonon scattering in a graphene nanosheets/(Bi2Te3)(0.2)(Sb2Te3)(0.8) thermoelectric nanocomposite[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,661(无):389-395.
APA Li, Cong.,Qin, Xiaoying.,Li, Yuanyue.,Li, Di.,Zhang, Jian.,...&Song, Chunjun.(2016).Simultaneous increase in conductivity and phonon scattering in a graphene nanosheets/(Bi2Te3)(0.2)(Sb2Te3)(0.8) thermoelectric nanocomposite.JOURNAL OF ALLOYS AND COMPOUNDS,661(无),389-395.
MLA Li, Cong,et al."Simultaneous increase in conductivity and phonon scattering in a graphene nanosheets/(Bi2Te3)(0.2)(Sb2Te3)(0.8) thermoelectric nanocomposite".JOURNAL OF ALLOYS AND COMPOUNDS 661.无(2016):389-395.

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来源：合肥物质科学研究院

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