INFLUENCES OF APPLIED ELECTRIC FIELDS ON THERMOELECTRIC PROPERTIES OF P-TYPE BULK POLYCRYSTALLINE MATERIALS

摘要：

We presented a theoretical model to predict thermoelectric properties of P-type bulk polycrystalline materials under a temperature gradient and an external electric field.The model is based on the Boltzmann transport equation for holes,and particularly,in which the hole scattering at the grain boundary is taken as the boundary conditions.The influences of external electric fields on the Seebeck coefficient and the power factor have been studied respectively.The results indicate that the applied external electric fields can impose nontrivial influences on the values of Seebeck coefficient and power factor,and the influences on Seebeck coefficient become more significant as the size of grain decreases.

关键词： thermoelectric properties P-type bulk polycrystalline materials applied electric fields

作者: X.D.Jia Y.W.Gao

作者单位: Key Laboratory of Mechanics on Western Disaster and Environment,Ministry of Education and College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 1120-1123

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）