Project supported by the National Basic Research Program of China (Grant Nos 2007CB607501 and 2007CB607503);Yunnan Natural Science Fund (Grant No 2008CD114)
N-type Si-based type-Ⅰ clathrates with different Ga content were synthesized by combining the solid-state reaction method,melting method and spark plasma sintering (SPS) method.The effects of Ga composition on high...