Electrical characterization of top-gated molybdenum disulfide metaloxidesemiconductor capacitors with high-k dielectrics
Top-gated MOSCAPs on bulk MoS2 crystal with high-k dielectric were fabricated. 30nm ALD HfO2 and Al2O3 were deposited on UV-ozone surface-functionalized MoS2. The area dependence, frequency dependence and hysteresis of CV are shown. CV frequency dispersion suggests defects in the high-k/MoS2 interfacial region.
high-k dielectrics cv transition metal dichalcogenide (tmd) molybdenum disulfide (mos2) top-gated mos capacitor iv