Synthesis and Transport Properties of Polycrystalline Co-filled Type- I Clathrate Compound (Sr,Ba)8Ga16Ge30

摘要：

Ga-substituted Ge based type-I clathrates with the general formula A8X16Y30 display promising thermoelectric performance. Using high purity elemental Sr, Ba, Ga, and Ge as starting materials, polycrystalline co-filled type-I clathrate compound (Sr,Ba)8Ga16Ge30 were successfully achieved by combining melting and Spark Plasma Sinter (SPS) method. The temperature dependence of thermal conductivity, electronic conductivity and Seebeck coefficient were reported. The calculated ZTmax is 0.28 at 700K. Enhanced thermoelectric performance would be expected through adjusting Sr/Ba ratio and framework atoms.

关键词： Co-filled type-I Clathrate Thermoelectric Property Sr/Ba Ratio

作者: Li WANG Degang ZHAO Xiaoya SHI Wan JIANG Lidong CHEN

作者单位: State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 441-445

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）