Improving thermoelectric performance of p-type Ag-doped Mg2Si0.4Sn0.6 prepared by unique melt spinning method

doi:10.1016/j.applthermaleng.2016.05.146

	Improving thermoelectric performance of p-type Ag-doped Mg2Si0.4Sn0.6 prepared by unique melt spinning method
	Tang, Xiaodan 1,2; Zhang, Yumeng 1; Zheng, Yong 1; Peng, Kunling 1,2; Huang, Tianyu 2; Lu, Xu 1; Wang, Guoyu 2; Wang, Shuxia 1; Zhou, Xiaoyuan 1
刊名	Applied Thermal Engineering
	2017
卷号	111 页码:1396-1400
ISSN号	13594311
DOI	10.1016/j.applthermaleng.2016.05.146
英文摘要	In our work, p-type Mg2−xAgxSi0.4Sn0.6 (x = 0.00, 0.01, 0.02, 0.05, 0.07) compounds with single-phase are successfully synthesized via a home-made melt spinning (MS) system followed by spark plasma sintering (SPS). This unique process not only largely shortens the time of sample preparation compared with the traditional methods, but also successfully prevents the presence of MgO impurity phase. All samples are single-phase solid solutions with an anti-fluorite structure as identified by XRD. The thermoelectric properties of Mg2−xAgxSi0.4Sn0.6 compounds were measured from room temperature to 773 K. The final results indicate that (1) Ag serves as effective holes donor and (2) the electrical conductivity rises rapidly and the thermal conductivity decreases with increasing Ag content until x = 0.05. As a result, a peak dimensionless figure of merit ZT value of 0.45 at 690 K is achieved when x = 0.05. The enhanced thermoelectric performance coupled with the drastically reduced processing time will be of considerable significance to the commercial-scale production of Mg2X (X = Si, Ge, and Sn) thermoelectric material. © 2016 Elsevier Ltd
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9890]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Wang, Shuxia
作者单位	1.College of Physics, Chongqing University, Chongqing; 401331, China; 2.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China
推荐引用方式 GB/T 7714	Tang, Xiaodan,Zhang, Yumeng,Zheng, Yong,et al. Improving thermoelectric performance of p-type Ag-doped Mg2Si0.4Sn0.6 prepared by unique melt spinning method[J]. Applied Thermal Engineering,2017,111:1396-1400.
APA	Tang, Xiaodan.,Zhang, Yumeng.,Zheng, Yong.,Peng, Kunling.,Huang, Tianyu.,...&Zhou, Xiaoyuan.(2017).Improving thermoelectric performance of p-type Ag-doped Mg2Si0.4Sn0.6 prepared by unique melt spinning method.Applied Thermal Engineering,111,1396-1400.
MLA	Tang, Xiaodan,et al."Improving thermoelectric performance of p-type Ag-doped Mg2Si0.4Sn0.6 prepared by unique melt spinning method".Applied Thermal Engineering 111(2017):1396-1400.