Abstract
AbstractGiven the remarkable advantages of high power density, fast charge–discharge speed, good stability, and low cost, the dielectric capacitors have sparked tremendous research interest in recent years for their unique applications in electrical systems and modern electronics. As for satisfying the future demands of the miniaturization and integration of the electrical devices, novel dielectric material with high energy storage density should be developed urgently. Importantly, ceramic‐polymer nanocomposites, which combine the high permittivity of the ceramic fillers and the excellent breakdown strength of the polymer matrix, are regarded as promising candidates. In this review, the various designs of the emerging nanocomposites are introduced from three aspects. First, the diverse design of the nanofillers, including tailoring the size, engineering the dimension, and selecting the species is focused. In addition, the design of the interfaces between the two phases by organic surface coating and inorganic surface coating is demonstrated. Furthermore, the spatial structure design of the nanocomposites, such as sandwich structure, gradient structure, and array structure, is presented as well. Finally, the bottlenecks along with opportunities of this booming field at present are concluded and outlined.
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