High field enhancement factors in photonic nanostructures

2015 ◽  
Author(s):  
Silvia Romano ◽  
Ivo Rendina ◽  
Vito Mocella
Keyword(s):  
High Field ◽  
Field Enhancement ◽  
Enhancement Factors

scholarly journals Calculating average surface enhancement factors of randomly nanostructured electrodes by a combination of SERS and impedance spectroscopy

2015 ◽  
Vol 17 (33) ◽  
pp. 21220-21225 ◽  
Author(s):  
J. Kozuch ◽  
N. Petrusch ◽  
D. Gkogkou ◽  
U. Gernert ◽  
I. M. Weidinger
Keyword(s):  
Electromagnetic Field ◽  
Impedance Spectroscopy ◽  
Field Enhancement ◽  
Surface Enhancement ◽  
Average Surface ◽  
Nanostructured Electrodes ◽  
Electrode Surfaces ◽  
Enhancement Factors ◽  
Simultaneous Use

Simultaneous use of SERS and impedance spectroscopy allows determining electromagnetic field enhancement factors of electrode surfaces with random nanostructures.

Synthesis of Carbon–Nitrogen Nanostructures by Hot Isostatic Pressure Apparatus and Their Field Emission Properties

2007 ◽  
Vol 7 (2) ◽  
pp. 570-574
Author(s):  
Yang Doo Lee ◽  
V. D. Blank ◽  
D. V. Batov ◽  
S. G. Buga ◽  
Yun-Hi Lee ◽  
...  
Keyword(s):  
Field Emission ◽  
Field Enhancement ◽  
Glass Frit ◽  
Gas Mixture ◽  
Nitrogen Gas ◽  
Field Emission Properties ◽  
Turn On ◽  
Field Emitters ◽  
Enhancement Factors ◽  
Resistive Heater

Carbon–nitrogen (CN) nanofibers were synthesized in argon–nitrogen gas mixture at 75 MPa by high isostatic pressure (HIP) apparatus using a graphite resistive heater. The CN nanofibers were grown in random with the diameter of about 200 nm and the length over 5 μm. The structures obtained can be divided bamboo-like, spring-like, and bead necklace-like CN nanofibers. The nitrogen content of up to 8.4% was found in CN nanofibers by EELS analysis. Field emission results showed that the density of field emitters and the field enhancement factors changed by surface treatments and that CN nanofibers contained glass frit. The screen-printed CN nanofiber had a turn-on field of 2 V/μm.

Field Emission Site Densities of Nanostructured Carbon

2001 ◽  
Vol 675 ◽  
Author(s):  
J B Cui ◽  
J Robertson ◽  
W I Milne
Keyword(s):  
Field Emission ◽  
Applied Field ◽  
Enhancement Factor ◽  
Field Enhancement ◽  
Carbon Films ◽  
Vacuum Arc ◽  
Nanostructured Carbon ◽  
Field Emission Properties ◽  
Site Density ◽  
Enhancement Factors

ABSTRACTThe field emission properties of nanostructured carbon films deposited by cathodic vacuum arc in a He atmosphere have been studied by measuring the emission currents and the emission site density. The films have an onset field of ∼3 V/μm. The emission site density is viewed on a phosphor anode and it increases rapidly with applied field. It is assumed that the emission occurs from surface regions with a range of field enhancement factors but with a constant work function. The field enhancement factor is found to have an exponential distribution.

Looped carbon nanotube fibers as cathodes with giant field enhancement factors

2020 ◽  
Vol 117 (25) ◽  
pp. 253101
Author(s):  
F. F. Dall'Agnol ◽  
T. A. de Assis ◽  
S. B. Fairchild ◽  
J. Ludwick ◽  
G. Tripathi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Field Enhancement ◽  
Enhancement Factors ◽  
Carbon Nanotube Fibers
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