Abstract
This paper reports on the study of inverted metal-oxide semiconductor (MOS) structures formed through mechanical exfoliation of MoS2 flakes onto Al2O3 or SiO2 layers grown on degenerately doped p type silicon substrates. Using Au/Ni metal top contacts, multi-frequency capacitance and conductance characterisation were performed to investigate electrically active defects in the MoS2/oxide structures. This data has been paired with physics-based ac simulations which indicate close to ideal interfacial properties.
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