Knowledge Management System of Hefei Institute of Physical Science,CAS
Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping | |
Chen, Tao1,2; Ming, Hongwei1,2; Zhang, Baoli1,3; Zhu, Chen1,2; Zhang, Jian1; Zhou, Qi2,4; Li, Di1; Xin, Hongxing1; Qin, Xiaoying1 | |
2021-02-22 | |
发表期刊 | ACS APPLIED ENERGY MATERIALS |
ISSN | 2574-0962 |
通讯作者 | Li, Di(lidi@issp.ac.cn) ; Xin, Hongxing(xinhongxing@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn) |
摘要 | Thermoelectric properties of CuSb1-xCdxSe2 (x = 0-0.08) compounds, prepared by vacuum melting, were studied at temperatures of 300-675 K. The results indicate that Cd doping causes both remarkable increase in the Seebeck coefficient and drastic drop of lattice thermal conductivity. The enhancement of thermopower originates mainly from increase of electronic density of states, while the drop of lattice thermal conductivity can be ascribed to enhanced phonon scattering by introduced impurity (dopant) atoms. As a consequence, thermoelectric figure of merit ZT is improved with a maximum ZT = 0.55 (at 675 K) being reached for CuSb0.98Cd0.02Se2, which is around 2.2-fold higher than that of the CuSbSe2 pristine compound. Our results indicate that Cd substitution is a feasible way to improve thermoelectric performance of the CuSbSe2-based system. |
关键词 | thermoelectric performance CuSbSe2 figure of merit thermal conductivity phonon scattering melting process |
DOI | 10.1021/acsaem.0c02820 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Natural Science Foundation of China[11674322] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[51972307] |
项目资助者 | Natural Science Foundation of China |
WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
WOS类目 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000621660800063 |
出版者 | AMER CHEMICAL SOC |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/120458 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Li, Di; Xin, Hongxing; Qin, Xiaoying |
作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 4.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Tao,Ming, Hongwei,Zhang, Baoli,et al. Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping[J]. ACS APPLIED ENERGY MATERIALS,2021,4. |
APA | Chen, Tao.,Ming, Hongwei.,Zhang, Baoli.,Zhu, Chen.,Zhang, Jian.,...&Qin, Xiaoying.(2021).Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping.ACS APPLIED ENERGY MATERIALS,4. |
MLA | Chen, Tao,et al."Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping".ACS APPLIED ENERGY MATERIALS 4(2021). |
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