In-place synthesis of metallic nanowire arrays for the use in an ionization vacuum gauge

An in-place synthesis process for nanowires is used to fabricate a customized field emitter array for the use as a non-thermal electron source in an ionization gauge. The fabrication was further expanded to metallic nanocones with a density of 1.6 × 10⁶ cm^-2 using optimized deposition of the cones on predefined electrodes. This method can make the wide area of the predefined electrodes enclosed with nanowires with less standard deviation in their height.