Colloidal synthesis of Cu2-xAgxCdSnSe4 nanocrystals: microstructures facilitate high performance thermoelectricity

doi:10.1039/c5tc02948a

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 机器人与3D打印技术创新中心

	Colloidal synthesis of Cu2-xAgxCdSnSe4 nanocrystals: microstructures facilitate high performance thermoelectricity
	Chen, Qiufan 1; Wang, Guiwen 1; Zhang, Aijuan 1; Yang, Dingfeng 2; Yao, Wei 1; Peng, Kunling 1,2; Yan, Yanci 1; Sun, Xiaonan 1; Liu, Anping 1; Wang, Guoyu2
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2015
卷号	3 期号:47 页码:12273-12280
ISSN号	2050-7526
DOI	10.1039/c5tc02948a
通讯作者	Zhou, XY (reprint author), Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China.
英文摘要	In this study, we report the colloidal synthesis (CS) of quaternary chalcogenide Cu2-xAgxCdSnSe4 nanocrystals (x = 0, 0.1, 0.2, 0.3, and 0.4) and their application in thermoelectrics. The as-prepared Cu2-xAgxCdSnSe4 nanocrystals present a narrow size distribution ranging from 30 to 50 nm and a precisely controlled composition. Additionally, it was observed that the disordered zinc blende phases were embedded in the normal zinc blende phases and amorphous nanoparticles were dispersed on grain surfaces and between grain boundaries of spark plasma sintered bulk Cu2-xAgxCdSnSe4. Moreover, a large enhancement in the Seebeck coefficient and a dramatically reduced lattice thermal conductivity was found in Cu2-xAgxCdSnSe4 solid solution, resulting in the dimensionless thermoelectric figure of merit reaching a peak value of 0.8 at 688 K when x = 0.3. This represents a 44% and 83% improvement in comparison to the undoped sample and the sample made via the solid state method (SS), respectively. The results demonstrate an exciting scientific opportunity to raise the figure-of-merit of quaternary chalcogenide Cu2CdSnSe4 prepared by colloidal synthesis via optimized solid solution.
资助项目	National Natural Science Foundation of China[11344010] ; National Natural Science Foundation of China[11404044] ; National Natural Science Foundation of China[51472036] ; National Natural Science Foundation of China[51401202] ; Fundamental Research Funds for the Central Universities[CQDXWL-2013-Z010] ; One Hundred Person Project of the Chinese Academy of Science[2013-46]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000365533600014
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/2045]
专题	机器人与3D打印技术创新中心
通讯作者	Zhou, Xiaoyuan
作者单位	1.Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qiufan,Wang, Guiwen,Zhang, Aijuan,et al. Colloidal synthesis of Cu2-xAgxCdSnSe4 nanocrystals: microstructures facilitate high performance thermoelectricity[J]. JOURNAL OF MATERIALS CHEMISTRY C,2015,3(47):12273-12280.
APA	Chen, Qiufan.,Wang, Guiwen.,Zhang, Aijuan.,Yang, Dingfeng.,Yao, Wei.,...&Zhou, Xiaoyuan.(2015).Colloidal synthesis of Cu2-xAgxCdSnSe4 nanocrystals: microstructures facilitate high performance thermoelectricity.JOURNAL OF MATERIALS CHEMISTRY C,3(47),12273-12280.
MLA	Chen, Qiufan,et al."Colloidal synthesis of Cu2-xAgxCdSnSe4 nanocrystals: microstructures facilitate high performance thermoelectricity".JOURNAL OF MATERIALS CHEMISTRY C 3.47(2015):12273-12280.