The objective of this paper is to fabricate a thermoelectric semicondu
ctor with high-generating power. After powders were prepared from the
melt-spun ribbons of FeSi2-1 at%M (M = B, Mn, Co) which were made by a
single roll method, they were sintered with Ag-powder or AgNO3-soluti
on. When the powders of FeSi2-1 at%Co were sintered with AgNO3-solutio
n, the large power factor is obtained due to the reduced electrical re
sistivity.