“…It is believed that the accumulation of this interfacial charge and the formation of an EDL at the interface can severely affect the local electric field, causing additional heat to be generated, etc, which is responsible for power transformer insulation failures [29]. Despite a vast literature concerned with the experimental characterization of its electrical properties related to charge accumulation and transport at this particular interface [19,[30][31][32], very little is known about the details of the electrical behavior of this insulating material, and others like it, at the molecular level. Therefore, exploring the effect of EDLs on the electrical properties of the Cu/MO interface is a key to understanding interfacial charge transport at the microscopic level, which has never been studied before, but is believed to be an important theoretical basis for improving the insulating properties of oilimpregnated power transformers.…”