Dielectric properties of polydimethylsiloxane composites filled with <scp> SrTiO ₃ </scp> nanoparticles

This article deals with the dielectric properties of polydimethylsiloxane (PDMS) nanocomposites filled SrTiO3 nanoparticles. The investigations were performed over a very broad range frequencies (20 Hz to 3 THz). Almost no dispersion was observed in all composites at room temperature entire measurement frequencies, and losses also low under these conditions (<1.9). lower temperatures (below 280 K), due relaxation PDMS/SrTiO3 interface bulk polymer. time for both cases followed Vogel–Vulcher law, while freezing substantially interface.