Pulsed field emission imaging of double-gate metal nano-tip arrays: Impact of emission current and noble gas conditioning

We studied the field emission characteristics of stacked-double gate all metal nano-tip arrays for the un-collimated emission current ranging from a few μA to 0.4 mA. Conditioning a 4×10
⁴
-tip device in low-pressure neon gas ambient and applying long switching pulses, up to ~80 μA field emission current with the transverse energy spread well below 1 eV was demonstrated.