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