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Updated: Mar 15, 2026

Electrochemical Etching and Characterization of Sharp Field Emission Points for Electron Impact Ionization
Published on: July 12, 2016
High Performance Field Emitters
Clare M Collins1, Richard J Parmee1, William I Milne2
1Department of Engineering Electrical Engineering Division University of Cambridge 9 JJ Thomson Avenue CB3 0FA Cambridge UK.
Abstract:
The field electron emission performance of bulk, 1D, and 2D nanomaterials is here empirically compared in the largest metal-analysis of its type. No clear trends are noted between the turn-on electric field and maximum current density as a function of emitter work function, while a more pronounced correlation with the emitters dimensionality is noted. The turn-on field is found to be twice as large for bulk materials compared to 1D and 2D materials, empirically confirming the wider communities view that high aspect ratios, and highly perturbed surface morphologies allow for enhanced field electron emitters.
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