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