Liquid-Phase Manipulation Securing Enhanced Thermoelectric Performance of Ag2Se

doi:10.1021/acsami.1c08410

HFCAS OpenIR

	Liquid-Phase Manipulation Securing Enhanced Thermoelectric Performance of Ag2Se
	Li, Di; Zhang, Bao Li; Ming, Hong Wei; Wang, Ling; Zu, Yan; Qin, Xiao Ying
	2021-07-28
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
通讯作者	Li, Di(lidi@issp.ac.cn) ; Zu, Yan(zuyanch@126.com)
摘要	Developing n-type materials with high peak and/or average ZT (ZT is the figure of merit) is an urgent need for the lower ZT of the existing n-type BiTeSe materials compared with the p-type BiSbTe materials. Here, we demonstrate that liquid-phase sintering can lead to lowered thermal conductivity and an improved power factor in n-type Ag2Se, which originates from the greatly lowered electronic thermal conductivity attributed to the decreased mobility and improved Seebeck coefficients because of increased effective mass. Benefiting from this, the maximum ZT (ZT(max)) of similar to 1.21 and the average ZT (ZT(ave)) of 1.06 are successfully achieved in polycrystalline Ag2Se. In this work, ZT(ave) is the highest reported value, being 26% larger than that of Ag2Se reported. Our work shows that liquid-phase sintering to achieve improved thermoelectric (TE) performance opens a great opportunity for designing prospective thermoelectrics.
关键词	Ag2Se liquid-state manipulation thermoelectric performance N-type semiconductor power factor
DOI	10.1021/acsami.1c08410
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[51672278] ; Natural Science Foundation of China[11674322]
项目资助者	Natural Science Foundation of China
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000679917500078
出版者	AMER CHEMICAL SOC
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/123040
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Di; Zu, Yan
作者单位	Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Di,Zhang, Bao Li,Ming, Hong Wei,et al. Liquid-Phase Manipulation Securing Enhanced Thermoelectric Performance of Ag2Se[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13.
APA	Li, Di,Zhang, Bao Li,Ming, Hong Wei,Wang, Ling,Zu, Yan,&Qin, Xiao Ying.(2021).Liquid-Phase Manipulation Securing Enhanced Thermoelectric Performance of Ag2Se.ACS APPLIED MATERIALS & INTERFACES,13.
MLA	Li, Di,et al."Liquid-Phase Manipulation Securing Enhanced Thermoelectric Performance of Ag2Se".ACS APPLIED MATERIALS & INTERFACES 13(2021).