Top-gated MoS2 capacitors and transistors with high-k dielectrics for interface study

Abstract

Top-gated MOS capacitors on bulk MoS2 and transistors of few-layer MoS2 were designed and fabricated. They can be potentially utilized on various TMD and high-k materials for fast and robust electrical characterization. The 3-terminal transistor test structure shows advantages of significant reduction of parasitic effects. C-V and I-V measurements were successfully conducted to characterize few-layer MoS2 transistors with sub-10 nm HfO2 dielectric.