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Measured field electron emission (FE) current-voltage Im(Vm) data are traditionally analysed via Fowler-Nordheim (FN) plots, as ln{Im/(Vm)**2} vs 1/Vm. These have been used since 1929, because in 1928 FN predicted they would be linear. In…

介观与纳米尺度物理 · 物理学 2019-05-21 Richard G. Forbes

This Comment suggests that technological field electron emission (FE) papers, such as the paper under discussion [P. Serbun et al.,, Rev. Sci. Instrum. 91, 083906 (2020)], should use FE theory based on the 1956 work of Murphy and Good (MG),…

介观与纳米尺度物理 · 物理学 2020-12-03 Richard G. Forbes

This paper presents a new methodology for making comparisons between the theory of field electron emission (FE) and experiment, and is intended as a "demonstration of concept". This methodology is based on the value of the exponent kappa…

介观与纳米尺度物理 · 物理学 2022-07-05 Sergey V. Filippov , Anatoly G. Kolosko , Eugeni O. Popov , Richard G. Forbes

This paper focuses on one small but significant part of a long-term project that aims to improve the interpretation of measured field electron emission (FE) current-voltage [I_m(V_m)] data, and (later) the formulation of FE theory. A new…

介观与纳米尺度物理 · 物理学 2021-07-20 Richard G. Forbes

In field electron emission (FE) studies, it is important to check and analyse the quality and validity of results experimentally obtained from samples, using suitably plotted current-voltage [I(V)] measurements. For the traditional plotting…

应用物理 · 物理学 2020-06-16 Mohammad M. Allam , Richard G. Forbes , Marwan S. Mousa

In field electron emission (FE) studies, to interpret current-voltage data and extract characterization parameters, we use smooth planar metal-like emitter (SPME) methodology and a data-analysis plot. Three types exist: Millikan-Lauritsen…

In this paper we study the effect of actual, locally resolved, field emission (FE) area on electron emission characteristics of uniform semimetallic nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) field emitters. To obtain the…

In papers on cold field electron emission from large area field emitters (LAFEs), it has become widespread practice to publish a misleading Fowler-Nordheim-type (FN-type) equation. This equation over-predicts the LAFE-average current…

介观与纳米尺度物理 · 物理学 2018-12-18 Richard G. Forbes

Field electron emission (FE) has relevance in many different technological contexts. However, many related technological papers use a physically defective elementary FE equation for local emission current density (LECD). This equation takes…

介观与纳米尺度物理 · 物理学 2020-01-08 Richard G. Forbes

The commonest method of characterizing a cold field electron emitter is to measure its current-voltage characteristics, and the commonest method of analysing these characteristics is by means of a Fowler-Nordheim (FN) plot. This…

介观与纳米尺度物理 · 物理学 2016-07-04 Richard G. Forbes , Jonathan H. B. Deane , Andreas Fischer , Marwan S. Mousa

Point sources exhibit low threshold electron emission due to local field enhancement at the tip. The development and implementation of tip emitters have been hampered by the need to position them sufficiently apart to achieve field…

Both single emitters and large area field emitters (LAFE) are generally characterized using the slope and intercept of a Murphy-Good (or Fowler-Nordheim) plot which are used to extract the field enhancement factor and the emission area.…

应用物理 · 物理学 2022-02-24 Debabrata Biswas

In field electron emission (FE) studies, it is important to check and analyse the quality and validity of experimental current-voltage data, which is usually plotted in one of a small number of standard forms. These include the so-called…

应用物理 · 物理学 2020-06-16 Mohammad M. Allaham , Richard G. Forbes , Alexander Knapek , Marwan S. Mousa

The theories of field electron emission from perfectly planar and smooth canonical surfaces are well understood, but they are not suitable for describing emission from rough, irregular surfaces arising in modern nanoscale electron sources.…

加速器物理 · 物理学 2017-12-21 M. Zubair , Yee Sin Ang , L. K. Ang

For field electron emission (FE), an empirical equation for measured current I_m as a function of measured voltage V_m has the form I_m = C*(V_m)^k*exp[-B/(V_m)], where B is a constant and C and k are constants or vary weakly with V_m.…

介观与纳米尺度物理 · 物理学 2021-02-24 R. G. Forbes , E. O. Popov , A. G. Kolosko , S. V. Filippov

This work presents a theoretical explanation for a crossover in the linear behavior in Fowler-Nordheim (FN) plots based on cold field electron emission (CFE) experimental data. It is characterized by a clear change in the decay rate of…

材料科学 · 物理学 2016-08-03 Thiago A. de Assis , Fernando F. DAgnol , Roberto F. S. Andrade

The classic theory of electron field emission from a cold metal surface due to Fowler and Nordheim (FN) is re-examined and found to violate the validity criteria for the WKB approximation, for electric fields greater than about 1V per…

材料科学 · 物理学 2015-06-24 T. C. Choy , A. H. Harker , A. M. Stoneham

This paper describes a simple quantitative test applicable to current-voltage data for cold field electron emission (CFE). It can decide whether individual reported field-enhancement-factor (FEF) values are spuriously large. The paper…

介观与纳米尺度物理 · 物理学 2018-12-19 Richard G. Forbes

This article proposes that we should think differently about predicting and interpreting measured field electron emission (FE) current-voltage [I(V)] characteristics. It is commonly assumed that I(V) data interpretation is a problem in…

介观与纳米尺度物理 · 物理学 2023-03-22 Richard G. Forbes

Representing field emission data on a Fowler--Nordheim plot is both very common and strongly not recommended. It leads to a spurious estimation of the emitter parameters despite a very good data fit. There is a lack of a reliable method of…

材料科学 · 物理学 2023-02-01 Anthony Ayari , Pascal Vincent , Sorin Perisanu , Philippe Poncharal , Stephen Purcell
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