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Amongst different two-dimensional semiconductor materials, silicene is fast emerging as a promising candidate for use as the channel material in field effect transistors. In this work, we first perform ab-initio calculations within density functional theory to obtain the band structure of mono- and multi-layered hydrogenated silicene, commonly known as silicane, in different stacking configurations...
To modulate the conductivity of channel as well as for controlling threshold voltage of the device doping is required. Sometimes this doping can be unintentional via adsorption of impurities. We have found by ab-initio density functional theory calculations that K and Nb atoms change the system into n-type, and Br changes into p-type if adsorbed on monolayer of MoS2. Similarly Cl, V and P introduce...
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