Some polymers having low dielectric constant used with high dielectric ceramics. But why we are merging these two high and low dielectric materials?
Energy storage devices use materials with high dielectric constants that can store large amounts of energy. The role of such materials is most often played by polymer substances, in the voids between the threads of which fillers are placed that can conduct electric current.
Polymers have low dielectric constant whereas ceramics suffer from brittleness. Thus, polymer-ceramic composites have been studied extensively to avoid the limitations of both pure polymer and pure ceramic. Polymer-ceramic composites exhibit excellent properties such as higher mechanical and thermal stability, enhanced piezoelectric characteristics, and flexibility.
You can refer to the following:
https://doi.org/10.1002/pat.5816
https://doi.org/10.1021/acsaelm.3c00078
Merging high dielectric constant ceramics with low dielectric constant polymers creates composites that harness the energy storage capacity of ceramics and the processing advantages of polymers. This combination allows for fine-tuning of dielectric properties, improved material flexibility, and enhanced breakdown strength, resulting in efficient and tailored energy storage solutions.
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