Conductivity Thin films Polymers Aluminum oxide LDPE Electron-beam irradiation KPFM C-AFM Electric field distribution Dielectric properties Cumyl alcohol Dielectric films Proteins Ac electric field Silicon compounds Atomic force microscopy Insulation Cathodoluminescence Cable Ageing Plasma process Charge transport LIMM E-Beam Radiation effects Field distribution Modeling Dielectric strength Space charge Charge injection Dielectric materials Silver nanoparticles Polarization Mechanical properties TiO2 Electron beam Polarity reversal Electronic irradiation Acoustic wave propagation Dielectric material Permittivity FTIR Epoxy Polypropylene Power cables Dielectric charging Dielectrics Electroluminescence Charge trapping Charge d'espace HVDC Luminescence Breakdown Charge transport model Electrical conductivity Cross-linking by-products Electrical properties FLIMM Electrical insulation Electric potential Current measurement DC conductivity Accumulation characteristics Partial discharges Electromechanical stress Nanostructured dielectrics EFM Electrostatics Conduction current Silver Polyethylene AFM Cross-linked polyethylene Charge measurement Electrical engineering Electrical ageing Rotating machines Electron emission Polymer Thermal aging Fluid model Electron beams Optimization XLPE Pulsed electro acoustic method PTFE Polymeric insulation AgNPs Electrostatic actuators Transport Electric field Electrodes Bipolar charge transport model Polyimide Interfacial charge HVDC cable PEA SiO2 Plasma processes Dielectric