Building Hierarchical Interfaces Using BaSrTiO_3 Nanocuboid Dotted Graphene Sheets in an Optimized Percolative Nanocomposite with Outstanding Dielectric Properties

摘要

Conductive particle/polymer (percolative composite) systems have also been regarded as an effective strategy for preparing high-performance dielectric materials. One danger of using conductive additives is that while the permittivity increases, the dielectric loss can also dramatically increase due to the inevitable agglomeration and connection of the conductive fillers in the percolative composite. As a result, it is of interest to the develop new dielectric composites that lie between the two kinds of aforementioned composite that combine increased permittivity from a percolative composite (e.g., graphene/polymer) with a suppressed dielectric loss from insulative composites (e.g., ceramic/polymer).