Modeling the electron field emission from carbon nanotube films

The field emission properties of high aspect ratio diamond nanocone arrays fabricated by focused ion beam milling

“…For comparison, severe shielding effect (s is about 0.06) of the field emission properties for densely aligned carbon nanotubes has been studied in Ref. [15]. Therefore, it can be concluded the diamond cone density used in our experiment is quite advantageous for decreasing shielding effect.…”

The Controlled Growth of Long AlN Nanorods and In-situ Investigation on Their Field Emission Properties

“…6. Moreover, the nonlinearity of the FN plots of four samples can also be explained by Filip model (Filip et al, 2001). It is also proposed that the morphology and the growth density of the AlN nanostructures determine their FE behaviors to a great extent.…”

“…It can be observed in Table 2 that the nanorod and the nanocrater with lower density have higher field enhancement factor β than the nanocones with higher density. Combined the nonlinearly (low and high electric field)exhibited in their FN plots with the screen effect, Filip model was more appropriate for these samples (Filip et al, 2001), which can be expressed as follows:…”

Carbon Nanotube Field Emitters

“…Calculation difficulties in these numerical methods arise due to the large nanotube aspect ratio and very long distance between cathode and anode in comparison with emitter height. Usually, these numerical results were generalized and simple fitting formulas of field enhancement factor for individual nanotube (Edgcombe & Valdrè, 2001;Edgcombe & Valdrè, 2002;Shang et al, 2007), for nanotube in space between parallel cathode and anode planes (Bonard et al, 2002a;Filip et al, 2001;Nilsson et al, 2002;Smith et al, 2005), and for a nanotube surrounded by neighboring nanotubes with a screening effect (Jo et al, 2003;Glukhova et al, 2003;Nilsson et al, 2000;Wang et al, 2005) were suggested. The main problem for such algebraic fitting formulas is the lack of a definitive proof of their accuracy.…”