Study of electrical properties of the semiconductor N-benzyl-N'-(5-methyl-1H-pyrazol-3-yl) propanimidamide

Abstract

This article focuses mainly on the recent advances in the study of the interesting electronic powers of the N-benzyl-N'-(5-methyl-1H-pyrazol-3-yl) propanimidamide. The selected amidine has been previously synthesized, and characterized in a previous publication. We present in this research to study the electrical properties of the crystal. In this context, we studied the electrical properties (impedance, modulus, and DC conductivity) of the material as a function of both frequency and temperature factors. The obtained results showed that the synthesized amidine is a good short-range proton semiconductor material. The appearance of the reported semiconductor behavior is linked to the activation of the Small Polaron Hopping conduction process via an energy of Ea = 0.788 eV. In this case, we can recognize that the transport properties in the studied system are thermally activated. Impedance measurements approve the important contribution of the conductive grains and the resistive grain boundary zones on the electrical transport properties of the material. Then, the M″ and Z″ spectra evidence the existence of electrical relaxation phenomena in the studied sample. In the same context, the modulus representation showed the absence of the electrode contribution to the transport properties at low frequencies. The deduced activation energies from the DC conductivity and the imaginary parts of the impedance and modulus representations are deffirent that confirms that the transport and the relaxation phenomena are related to dissimilar origins.