Achieving higher thermoelectric performance of n-type PbTe by adjusting the band structure and enhanced phonon scattering

doi:10.1039/d2nr04419f

	Achieving higher thermoelectric performance of n-type PbTe by adjusting the band structure and enhanced phonon scattering
	Wu, Wei 1,2; Zhu, Chen 1,2; Ming, Hongwei 1,2; Chen, Tao 1,2; Li, Di 1,2; Qin, Xiaoying 1,2; Zhang, Jian 1,2
刊名	NANOSCALE
	2022-10-26
ISSN号	2040-3364
DOI	10.1039/d2nr04419f
通讯作者	Li, Di(lidi@issp.ac.cn) ; Qin, Xiaoying(xyqin@issp.ac.cn) ; Zhang, Jian(zhangjian@issp.ac.cn)
英文摘要	Due to the very distinct electronic band structure and lower power factor, the exploration of n-type PbTe as thermoelectric materials has historically fallen behind that of p-type PbTe. In this work, n-type Pb0.97Sb0.03Te-based composites incorporated with Cu12Sb4S13 nanoparticles are synthesized and investigated. Sb doping is utilized to modify its carrier concentration in order to obtain n-type PbTe materials with a high power factor. Then, the incorporation of Cu12Sb4S13 nanoparticles can generate semi-coherent nanophase CuTe, and simultaneously optimize the thermal and electrical properties due to remarkable energy filtering effects and interface scattering in the higher temperature range. Eventually, a peak figure of merit ZT approximate to 1.58 was obtained at 773 K for the sample Pb0.97Sb0.03Te + 1.5 wt% Cu12Sb4S13, indicating that the incorporation of Cu12Sb4S13 in Pb0.97Sb0.03Te is an effective approach to improve its thermoelectric performance.
资助项目	National Natural Science Foundation of China[51972307] ; National Natural Science Foundation of China[1217040291] ; Anhui Provincial Natural Science Foundation[2008085MA18] ; Special Foundation of President of HFIPS[YZJJ202102]
WOS关键词	TRANSPORT
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000885151100001
资助机构	National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Special Foundation of President of HFIPS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130339]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Di; Qin, Xiaoying; Zhang, Jian
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, R China, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Wu, Wei,Zhu, Chen,Ming, Hongwei,et al. Achieving higher thermoelectric performance of n-type PbTe by adjusting the band structure and enhanced phonon scattering[J]. NANOSCALE,2022.
APA	Wu, Wei.,Zhu, Chen.,Ming, Hongwei.,Chen, Tao.,Li, Di.,...&Zhang, Jian.(2022).Achieving higher thermoelectric performance of n-type PbTe by adjusting the band structure and enhanced phonon scattering.NANOSCALE.
MLA	Wu, Wei,et al."Achieving higher thermoelectric performance of n-type PbTe by adjusting the band structure and enhanced phonon scattering".NANOSCALE (2022).