A CoSb3 skutterudite thermoelectric material and method for manufacturing the same is provided to reduce resistivity by replacing Te with antimony producing overcharge through Te doping. A CoSb3 skutterudite thermoelectric material and method is comprised of the steps: inserting cobalt, antimony, indium, and tellurium into the quartz tube; performing air-tight in vacuum condition; heating and melting the inserted material with high frequency induction power; perform vacuum heating treatment to fill indium into the aperture and activate Te.
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