Study Ratio Between the CuO and Eu2O3 Concentrations on Electrical Resistivity, Seebeck Coefficient and Power Factor of CuEu2O4

This work, to study ratio between the CuO and Eu2O3 concentations better than to study the effect of CuO content, xCuO: 1Eu2O3 (x = 2, 2.5, 3, 3.5). All of samples were prepared by conventional solid-state reaction method. The electrical resistivity, Seebeck coefficient and power factor were measured by ZEM-3 series under helium gas atmosphere at temperature ranges of 400 − 800 K. They were found that, the electrical resistivity of all samples were decrease with increasing of measurement temperature. Seebeck coefficient are negative in whole temperature range. The power factor was calculated by P = S2/⟩ (where S is Seebeck coefficient and ⟩ is electrical resistivity) and exhibited highest value about 20 W−1m−1K−2 at 775 K.