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Enhanced power factor and thermoelectric performance for n-type Bi2Te2.7Se0.3 based composites incorporated with 3D topological insulator nanoinclusions

文献类型：期刊论文

作者Jabar, Bushra1,2; Qin, Xiaoying1; Mansoor, Adil1; Ming, Hongwei1,2; Huang, Lulu1,2; Danish, Mazhar Hussain1,2; Zhang, Jian1; Li, Di1; Zhu, Chen1,2; Xin, Hongxing1
刊名NANO ENERGY
出版日期2021-02-01
卷号80
ISSN号2211-2855
关键词Thermoelectric performance Bi2Te2.7Se0.3 Nanoinclusion Power factor Thermal conductivity
DOI10.1016/j.nanoen.2020.105512
通讯作者Qin, Xiaoying(xyqin@issp.ac.cn) ; Zhang, Jian(zhangjian@issp.ac.cn) ; Li, Di(lidi@issp.ac.cn)
英文摘要n-type Bi2Te2.7Se0.3 (BTS) alloy is a state-of-the-art room temperature thermoelectric material used for refrigeration commercially. However, wide application is limited by its low performance. Here, we show that incorporation of nano-sized 3D topological insulator (3D-TI) Bi2Se3 in Bi2Te2.7Se0.3 bring about a large electron mobility and increased electrical conductivity owing to the enhanced contribution of topologically protected conducting surface states as well as large Seebeck coefficient due to energy dependent carrier scattering. Besides, the incorporation of 3D-TI nanoinclusions leads to enhanced phonon scattering. As a result, addition of 0.3 vol% of Bi2Se3 in BTS results in similar to 36% increase in power factor and similar to 16% decrease in total thermal conductivity, leading to a large figure of merit ZT(max) = 1.28 (at 375 K) and a large average ZT(ave) = 1.16 (at T = 300-525 K), which are 62% and 59% greater than that of BTS, respectively.
资助项目National Natural Science Foundation of China[11674322] ; National Natural Science Foundation of China[51672278] ; National Natural Science Foundation of China[51972307]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000618005500003
资助机构National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/120541]  
专题中国科学院合肥物质科学研究院
通讯作者Qin, Xiaoying; Zhang, Jian; Li, Di
作者单位1.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Jabar, Bushra,Qin, Xiaoying,Mansoor, Adil,et al. Enhanced power factor and thermoelectric performance for n-type Bi2Te2.7Se0.3 based composites incorporated with 3D topological insulator nanoinclusions[J]. NANO ENERGY,2021,80.
APA Jabar, Bushra.,Qin, Xiaoying.,Mansoor, Adil.,Ming, Hongwei.,Huang, Lulu.,...&Song, Chunjun.(2021).Enhanced power factor and thermoelectric performance for n-type Bi2Te2.7Se0.3 based composites incorporated with 3D topological insulator nanoinclusions.NANO ENERGY,80.
MLA Jabar, Bushra,et al."Enhanced power factor and thermoelectric performance for n-type Bi2Te2.7Se0.3 based composites incorporated with 3D topological insulator nanoinclusions".NANO ENERGY 80(2021).

入库方式： OAI收割

来源：合肥物质科学研究院

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