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