Development of polymer-based 0-3 composites with high dielectric constant

Composites have been extensively studied for dielectric and related applications. This is a review of polymer-based 0-3 composites that exhibit a high dielectric constant. These composites are classified into two types: dielectric-dielectric composite and conductor-dielectric composite. The physical principles and related models are presented with associated assumptions and approximations. In general, a dielectric- dielectric composite needs a higher concentration of the fillers to reach a high dielectric constant than a conductor-dielectric composite. The high dielectric constant observed in the conductor-dielectric composites is usually associated with a high dielectric loss and a low electric breakdown field. The experimental results are summarized to illustrate the principles for, and the achievements in, the development of these composites. The challenges facing the fundamental understanding and the further development of these composites for different applications are discussed.