Electrical response of polymer functionalized ultrafine inorganic particles under frequency conditions: an in situ approach

Abstract

A wet chemical synthesis method is reported for the preparation of polymer stabilized ultrafine palladium iodide particles within the size range of 5–8 nm. The X-ray photoelectron spectroscopy analysis confirmed the formation of palladium iodide with Pd(I)-like species. The dipolar response of the synthesized organic–inorganic hybrid system has been investigated under different temperature and frequency conditions. The dielectric constant value exhibited an inverse relationship with the temperature and the maximum value of ∼595 was achieved at 100 Hz. The maximum polarization and the remnant polarization values of the palladium iodide nanoparticle based sample were 0.20 μC cm⁻² and 0.145 μC cm⁻², respectively, under 2 kV mm⁻¹ field conditions at 100 Hz. We also have explored the dielectric and electric field driven polarization performance of the palladium iodide nanoparticles under in situ synthesis conditions.