Improved performance of back-gate MoS2 transistors by NH3-plasma treating high-k gate dielectrics Project supported by the National Natural Science Foundation of China (Grant No. 61774064). |
Schematic diagram of the back-gate MoS2 transistor structure: (a) HfO2 gate dielectric, (b) Al2O3/HfO2 gate dielectric, (c) thickness of MoS2 film corresponding to different colors under optical microscope, (d) MoS2 flake selected to fabricate transistor with L of 2 μm. |