CeO2/CoPc Nanocomposite for Potential Applications in Electronics
This study reports the influence of cobalt phthalocyanine on the dielectric properties and electrical conductivity of CeO2 nanoparticles, at various temperatures. A CeO2/CoPc nanocomposite was synthesized using a standard procedure and characterized by x-ray diffraction. The surface morphology of the sintered samples was analyzed by scanning electron microscopy. The dielectric constant was calculated from the observed capacitance values in the frequency range of 100 Hz–10 MHz. It is found that the dielectric constant and dielectric loss vary as a function of frequency and have a strong dielectric response at low frequency. The occurrence of relaxation peaks in the electric modulus plot (Mll versus logf) indicates that this nanocomposite sample is an ionic conductor. The a.c. conductivity of the nanocomposite increases with frequency. The desired structural and dielectric properties make it as a good candidate for potential applications in molecular electronics and high-frequency applications.