One way to increase the permittivity of a dielectric is to add highly polarizable inclusions. As with other composites, the properties of the mixed material are potentially tunable. By adjusting the composition, size, and loading of inclusions, materials with desired properties such as static dielectric permittivities, breakdown voltages, and dielectric losses can be fabricated. This can be accomplished while maintaining favorable properties of the matrix, such as processability and interfacial fit with other device components.