Field emission measurement system, J-E field emission curve, and surface band diagram of InSb nanowires. (a) The schematic diagram of field emission measurement system. (b) J-E field emission curve. The turn-on field of InSb nanowires is 1.84 V μm−1 at 1 μA cm−2, and the threshold field of InSb nanowires is 3.36 V μm−1 at 0.1 μA cm−2. Inset: F-N plot reveals the field emission behavior that follows F-N theory. (c) Schematic of the surface band diagram of the InSb nanowires.
Kuo et al. Nanoscale Research Letters 2013 8:69 doi:10.1186/1556-276X-8-69