Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping

doi:10.1021/acsaem.0c02820

	Ultralow Thermal Conductivity and Enhanced Figure of Merit for CuSbSe2 via Cd-Doping
	Chen, Tao 1,2; Ming, Hongwei 1,2; Zhang, Baoli 1,3; Zhu, Chen 1,2; Zhang, Jian 1; Zhou, Qi 2,4; Li, Di 1; Xin, Hongxing 1; Qin, Xiaoying 1
刊名	ACS APPLIED ENERGY MATERIALS
	2021-02-22
卷号	4
关键词	thermoelectric performance CuSbSe2 figure of merit thermal conductivity phonon scattering melting process
ISSN号	2574-0962
DOI	10.1021/acsaem.0c02820
通讯作者	Li, Di(lidi@issp.ac.cn) ; Xin, Hongxing(xinhongxing@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn)
英文摘要	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.
资助项目	Natural Science Foundation of China[11674322] ; Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[51972307]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000621660800063
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120457]
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).