Thermoelectric performance of nanostructured In/Pb codoped SnTe with band convergence and resonant level prepared via a green and facile hydrothermal method

doi:10.1039/d0nr00495b

	Thermoelectric performance of nanostructured In/Pb codoped SnTe with band convergence and resonant level prepared via a green and facile hydrothermal method
	Lu, Wenqi 2; He, Tiantian 2; Li, Shuang 2; Zuo, Xinru 2; Zheng, Yao 2; Lou, Xunuo 2; Zhang, Jian 1; Li, Di 1; Liu, Jizi 3; Tang, Guodong 2
刊名	NANOSCALE
	2020-03-14
卷号	12
ISSN号	2040-3364
DOI	10.1039/d0nr00495b
通讯作者	Liu, Jizi(jzliu@njust.edu.cn) ; Tang, Guodong(tangguodong@njust.edu.cn)
英文摘要	SnTe is considered as a promising alternative to the conventional high-performance thermoelectric material PbTe, which inspired the thermoelectric community for a while. Here, we design a green, facile and low-energy-intensity hydrothermal route without involving any toxic or unstable chemicals to fabricate SnTe-based thermoelectric materials. Ultralow lattice thermal conductivity and enhanced thermoelectric performance are achieved via the combination of band engineering and nanostructuring. Enhanced Seebeck coefficient and power factor are induced by converging the band structure and creating resonant levels due to Pb and In doping. More importantly, due to the reduced grain sizes, nanoparticles, and dual-atom point defect scattering, ultralow lattice thermal conductivity was obtained in the bulk samples fabricated by the hydrothermal route. Benefiting from the enhanced power factor and significantly reduced thermal conductivity, the peak ZT is enhanced to similar to 0.7 in In/Pb codoped SnTe, a 60% improvement over pure SnTe.
资助项目	National Natural Science Foundation of China[U1732153] ; Fundamental Research Funds for the Central Universities[30917011206] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX19_0290]
WOS关键词	LOW THERMAL-CONDUCTIVITY ; P-TYPE ; POLYCRYSTALLINE SNSE ; TRANSPORT-PROPERTIES ; SOLID-SOLUTIONS ; POWER-FACTOR ; HIGH FIGURE ; MERIT ; PBTE ; ENHANCEMENT
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:000520487300009
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Postgraduate Research & Practice Innovation Program of Jiangsu Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103591]
专题	中国科学院合肥物质科学研究院
通讯作者	Liu, Jizi; Tang, Guodong
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, MIIT Key Lab Adv Metall & Intermetall Mat Technol, Nanjing 210094, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Mat Characterizat & Res Ctr, Nanjing 210094, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Lu, Wenqi,He, Tiantian,Li, Shuang,et al. Thermoelectric performance of nanostructured In/Pb codoped SnTe with band convergence and resonant level prepared via a green and facile hydrothermal method[J]. NANOSCALE,2020,12.
APA	Lu, Wenqi.,He, Tiantian.,Li, Shuang.,Zuo, Xinru.,Zheng, Yao.,...&Tang, Guodong.(2020).Thermoelectric performance of nanostructured In/Pb codoped SnTe with band convergence and resonant level prepared via a green and facile hydrothermal method.NANOSCALE,12.
MLA	Lu, Wenqi,et al."Thermoelectric performance of nanostructured In/Pb codoped SnTe with band convergence and resonant level prepared via a green and facile hydrothermal method".NANOSCALE 12(2020).