The dielectric properties of polymers enable their applications for electronic skins (e-skins), capacitors, and dielectric resonator. A parallel plate capacitor exhibits a capacitance (C), defined as the ability to store a charge. The capacitance can be determined via the equation of C = εA/d, where ε, A, and d are the dielectric constant, the area, and the space between the two electrodes, respectively. A dielectric layer of polymer is sandwiched between the two electrodes. The dielectric properties depend on several parameters such as composition, size, porosity, thin-film thickness, defects, operating frequency, doping concentration, and atomic number .