Journal
NANO LETTERS
Volume 6, Issue 12, Pages 2660-2666Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl0613858
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Schottky barrier field effect transistors based on individual catalytically-grown and undoped Si-nanowires (NW) have been fabricated and characterized with respect to their gate lengths. The gate length was shortened by the axial, self-aligned formation of nickel-silicide source and drain segments along the NW. The transistors with 10-30 nm NW diameters displayed p-type behaviour, sustained current densities of up to 0.5 MA/cm(2), and exhibited on/off current ratios of up to 10(7). The on-currents were limited and kept constant by the Schottky contacts for gate lengths below 1 mu m, and decreased exponentially for gate lengths exceeding 1 Am.
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