Pressure-mediated contact quality improvement between monolayer MoS2 and graphite Project supported by the National Key R&D Program, China (Grant No. 2016YFA0300904), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. QYZDB-SSW-SLH004), the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (Grant Nos. XDPB06 and XDB07010100), and the National Natural Science Foundation of China (Grant Nos. 61734001 and 51572289). |
Explanation of pressure-enhanced contact quality between MoS2 and graphite under pressure. (a) I–V curves of metal tip/transferred MoS2/ITO junction under different pressure. (b) Schottky barrier height of metal tip/transferred MoS2/ITO junction as function of pressure. (c) Schematic illustration of metal tip–MoS2–graphite contact. The band structure at negative sample bias of (d) upstretched MoS2 and (e) stretched ∼2.7% MoS2. |