Thermoelectric Properties of Ptype Ga2Te5 Based Compounds

摘要：

Ptype Ga2Te5 based compounds with multiphase equilibrium were prepared by spark plasma sintering and their microstructures and thermoelectric properties were evaluated in the temperature range from 319 K to 549 K. Through XRD analysis, we observed the main phase Ga2Te5, a small amount of SnTe and single element Te. Measurements indicated that the Seebeck coefficients increase and the electrical and thermal conductivities decrease with the temperature in the entire temperature range. The highest thermoelectric figure of merit ZT of 0.16 can be achieved for Ga2SnTe5 at 549 K due to relatively low thermal conductivity and high electrical conductivity.

关键词： Thermoelectric properties Ga2Te5 based compounds Spark plasma sintering

作者: FU Hong YING PengZhan CUI JiaoLin ZHANG XiaoJun YAN YanMing

作者单位: China Uniersity of Mining and Technology, Xuzhou 221116, China Institute of Materials Engineering,Ningbo University of Technology, Ningbo 315016, China

会议类型: 国内会议

会议名称: 2010中国材料研讨会

会议地点: 长沙

会议语种:英文

页码: 1-6

在线出版日期: 2010-06-19（万方平台首次上网日期，不代表论文的发表时间）