High temperature thermoelectric transport properties of p-type Ba_8Ga_(16)Al_xGe_(30-x) type-l clathrates with high performance

摘要

Using group-III atom Al as doping element, Ba_8Ga_(16)Al_xGe_(30-x) (x= 1.0, 2.0, 3.0, 4.0, and 5.0) type-I clathrates with different Al content were synthesized by combining melting reaction with spark plasma sintering method. The effects of Al content o