Abstract
At present time a large number of papers are devoted to study of thermoelectric materials. An interest to such materials as transition metal chalcogenides appeared relatively recently due to their layered structure. Molybdenum disulfide being a bright representative of such materials is studied in this paper. This material is characterized by a high Seebeck coefficient on the one hand and low electrical conductivity on the other hand. Low electrical conductivity limits its thermoelectirc applications. Therefore, the main objective of this paper is to study electric conductivity of molybdenum disulfide with addition of metallic material with high electric conductivity. Molybdenum sulfide Mo₂S₃ was chosen as a metallic material for composition with molybdenum disulfide. The characteristics of this material are also studied in this paper. Composite materials under study had a total of 3 % and 6 % of Mo₂S₃. Thermoelectric effect measurement setup was designed and fabricated to perform investigation of composites.

The design of measurement setup is presented in this paper. The temperature characteristics of resistance for each composite are investigated. The power factor of composite materials was estimated. In the framework of this paper we have shown the influence of metallic material addition to the molybdenum disulfide on the power factor of composite for various temperature ranges. Thus Mo₂S₃ greatest influence was observed at the temperature range of 72 °C to 150 °C where 3 % and 6 % addition of the Mo₂S₃ caused a 2 time and 4 time increase in power factor of composite correspondingly.

 

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