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The effect of barrier form on slope and intercept correction factors for curved emitters: Development of some enabling theory

Fischer, A, Mousa, MS, Deane, JHB and Forbes, RG (2013) The effect of barrier form on slope and intercept correction factors for curved emitters: Development of some enabling theory 2013 26th International Vacuum Nanoelectronics Conference, IVNC 2013.

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Abstract

The work described in this conference poster follows up recent work on the interpretation of Fowler-Nordheim (FN) plots. It puts in place some enabling theory that should allow further development of plot interpretation theory, in the context of the sphere-on-othogonal-cone (SOC) emitter model. This model is expected to be more suitable, for small-apex-radius emitters, than the spherical-emitter (SPH) model. First, this report shows (as expected) that use of the spherical image-potential-energy formula, rather than the planar formula, appears to make little difference to the values of calculated parameters. Second, values of the exponent n (in the SOC model) are tabulated as a function of internal cone half-angle. Third, an expression is derived for the electrostatic component of electron motive energy, in the SOC model. Finally, the results of a sample calculation are presented. This compares values of the slope correction factor σ for the SPH and SOC models, for emitter-radius values 20 nm and 5 nm. As expected, the results for the two models are similar for 20 nm, but diverge as apex radius decreases. © 2013 IEEE.

Item Type: Article
Authors :
NameEmailORCID
Fischer, AUNSPECIFIEDUNSPECIFIED
Mousa, MSUNSPECIFIEDUNSPECIFIED
Deane, JHBUNSPECIFIEDUNSPECIFIED
Forbes, RGr.forbes@surrey.ac.ukUNSPECIFIED
Date : 9 December 2013
Identification Number : https://doi.org/10.1109/IVNC.2013.6624760
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:07
Last Modified : 17 May 2017 15:09
URI: http://epubs.surrey.ac.uk/id/eprint/838056

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