title: A dielectric polymer with high electric energy density and fast discharge speed.
abstract: Dielectric polymers with high dipole density have the potential to achieve very high energy density, which is required in many modern electronics and electric systems. We demonstrate that a very high energy density with fast discharge speed and low loss can be obtained in defect-modified poly(vinylidene fluoride) polymers. This is achieved by combining nonpolar and polar molecular structural changes of the polymer with the proper dielectric constants, to avoid the electric displacement saturation at electric fields well below the breakdown field. The results indicate that a very high dielectric constant may not be desirable to reach a very high energy density.
authors.affiliation: Materials Research Institute, Pennsylvania State University, University Park, PA 16802, USA [corrected]
authors.forename: Baojin
authors.initials: B
authors.lastname: Chu
authors.forename: Xin
authors.initials: X
authors.lastname: Zhou
authors.forename: Kailiang
authors.initials: K
authors.lastname: Ren
authors.forename: Bret
authors.initials: B
authors.lastname: Neese
authors.forename: Minren
authors.initials: M
authors.lastname: Lin
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.forename: F
authors.initials: F
authors.lastname: Bauer
authors.forename: Q M
authors.initials: QM
authors.lastname: Zhang