中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Realizing high thermoelectric performance in eco-friendly SnTe via synergistic resonance levels, band convergence and endotaxial nanostructuring with Cu2Te

文献类型：期刊论文

作者Hussain, Tanveer1; Li, Xiaotong1; Danish, Mazhar Hussain3; Rehman, Mutee Ur2; Zhang, Jian3; Li, Di3; Chen, Guang1; Tang, Guodong1
刊名NANO ENERGY
出版日期2020-07-01
卷号73
关键词SnTe Band convergence Resonance levels Endotaxial nanostructuring Thermoelectric materials Thermoelectric performance
ISSN号2211-2855
DOI10.1016/j.nanoen.2020.104832
通讯作者Chen, Guang(gchen@njust.edu.cn) ; Tang, Guodong(tangguodong@njust.edu.cn)
英文摘要SnTe is emerging as environment-friendly alternative to conventional thermoelectric material PbTe which contains toxic element. Here, we achieved an ultrahigh power factor and high thermoelectric performance of SnTe via the synergy of resonance levels, band convergence and endotaxial nanostructuring. We found that the coexistence of resonant levels (by In dopant) and band convergence (by Ca dopant) produce remarkable enhancement of Seebeck coefficient and ultrahigh power factor. The largest power factor reaches as high as similar to 42.2 mu Wcm(-1)K(-2). Endotaxial Cu2Te nanostructures were further introduced by a phase separation strategy, which plays a dominant role in reducing the lattice thermal conductivity. Meanwhile, it is revealed that Ca and In codoping enlarges band gap, therefore suppressing bipolar thermal conductivity. These electronic and thermal effects contribute to a record high ZT of similar to 1.85 at 823 K and a high average ZT of 0.67. This high performance material is low-cost, earth-abundant and environmentally-friendly, which are essential for the widespread use of thermoelectric modules.
WOS关键词THERMAL-CONDUCTIVITY ; POWER-FACTOR ; ENHANCEMENT ; PBTE ; EFFICIENCY ; TRANSPORT ; FIGURE ; MERIT
资助项目National Natural Science Foundation of China[U1732153] ; Natural Science Foundation of Jiangsu Province[BK20161495] ; Fundamental Research Funds for the Central Universities[30917011206] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX19_0290]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000560077800005
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Fundamental Research Funds for the Central Universities ; Postgraduate Research & Practice Innovation Program of Jiangsu Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/70776]  
专题中国科学院合肥物质科学研究院
通讯作者Chen, Guang; Tang, Guodong
作者单位1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, MIIT Key Lab Adv Metall & Intermetall Mat Technol, Nanjing 210094, Peoples R China
2.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
3.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		 Hussain, Tanveer,Li, Xiaotong,Danish, Mazhar Hussain,et al. Realizing high thermoelectric performance in eco-friendly SnTe via synergistic resonance levels, band convergence and endotaxial nanostructuring with Cu2Te[J]. NANO ENERGY,2020,73.
APA Hussain, Tanveer.,Li, Xiaotong.,Danish, Mazhar Hussain.,Rehman, Mutee Ur.,Zhang, Jian.,...&Tang, Guodong.(2020).Realizing high thermoelectric performance in eco-friendly SnTe via synergistic resonance levels, band convergence and endotaxial nanostructuring with Cu2Te.NANO ENERGY,73.
MLA Hussain, Tanveer,et al."Realizing high thermoelectric performance in eco-friendly SnTe via synergistic resonance levels, band convergence and endotaxial nanostructuring with Cu2Te".NANO ENERGY 73(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。