XLPE Optimization Electrostatics Electrical insulation KPFM FLIMM Nanostructured dielectrics Nanocomposite Silver nanoparticles Aluminum oxide Current measurement Interfaces Polarization Charge d'espace Field distribution Electrical ageing Dielectric films Cross-linked polyethylene DC conductivity Electric field Charge injection BSA Polymers Ac electric field Electroluminescence Charge transport model Epoxy resin Dielectric charging Crosslinked polyethylene Transport Permittivity Atomic force microscopy Epoxy Acoustic wave propagation FTIR Charges injection Cumyl alcohol Polarity reversal Polyethylene Insulations Silver Pulsed electro acoustic method Charge transport Luminescence Plasma process Kelvin Probe Force Microscopy Silicon compounds Dielectric material Insulation LDPE Conduction current Polypropylene Power cables Proteins Gamma irradiation Mechanical properties Fluid model AgNPs PTFE HVDC cable Cross-linking by-products Rotating machines Polymeric insulation Accumulation characteristics HVDC SiO2 Ageing Thin films Space charge Charge measurement Cathodoluminescence Electrodes Dielectric properties Conductivity Polymer EFM Electric field distribution Radiation effects Space charges Modeling Partial discharges Charge trapping Dielectrics Interfacial charge Dielectric Polyimide Bipolar charge transport model Insulating polymers PEA Dielectric materials Breakdown LIMM AFM Plasma processes Plasma deposition Thermal aging Charge transport modeling C-AFM Electron-beam irradiation Cable