High-current processing of microfabricated field emitters for enhanced emission uniformity and high-current-density operation

2003 ◽  
Author(s):  
P.R. Schwoebel ◽  
C.A. Spindt ◽  
C.E. Holland
Keyword(s):  
Current Density ◽  
High Current Density ◽  
High Current ◽  
Field Emitters

Philips electron microscopes: Applications trends—design advances

1992 ◽  
Vol 50 (2) ◽  
pp. 976-977
Author(s):  
M.N. Thompson
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Total Current ◽  
High Current ◽  
Large Area ◽  
Small Probe ◽  
Field Emitters ◽  
Chemical Resolution ◽  
Electron Microscopes ◽  
Reasonable Choice

Application trends in the 1990's will continue to be driven by the pursuit of materials characterisation to higher levels of structural and chemical resolution. Due to the information-limit and current-density limitations of LaB6 sources, further advancements will require better electron guns. The choice of guns includes Cold, Thermally-assisted Cold and Schottky Field Emitters. For SEM and STEM the Cold Field Emitter is a reasonable choice, because the primary criterion for small-probe techniques is current density. This logic doesn't apply to TEMs, which require both high current density for small probes and high total current for large-area illumination at various TEM magnification levels. Table 1 compares Schottky and Cold Field emitters in different applications and microscope construction. In view of its performance (Figs. 1 and 2), the Field Emission Gun is expected to have a major impact on TEM in the 1990's.

High-current-density field emitters based on arrays of carbon nanotube bundles

2005 ◽  
Vol 23 (1) ◽  
pp. 157 ◽  
Author(s):  
Harish M. Manohara ◽  
Michael J. Bronikowski ◽  
Michael Hoenk ◽  
Brian D. Hunt ◽  
Peter H. Siegel
Keyword(s):  
Carbon Nanotube ◽  
Current Density ◽  
High Current Density ◽  
Density Field ◽  
High Current ◽  
Nanotube Bundles ◽  
Field Emitters

Three-dimensional porous copper-decorated bismuth-based nanofoam for boosting electrochemical reduction of CO2 to formate

2021 ◽  
Author(s):  
Yingchun Zhang ◽  
Changsheng Cao ◽  
Xintao Wu ◽  
Qi-Long Zhu
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
High Current ◽  
Porous Copper ◽  
Reduction Of Co2 ◽  
Co2 Reduction Reaction ◽  
Wide Potential

Bismuth (Bi)-based nanomaterials are considered as the promising electrocatalysts for electrocatalytic CO2 reduction reaction (CO2RR), but it is challenging to achieve high current density and selectivity in a wide potential...

Cu-Doped Alloy Layer Guiding Uniform Li Deposition on a Li–LLZO Interface under High Current Density

2021 ◽  
Author(s):  
Xia He ◽  
Fei Yan ◽  
Mingyuan Gao ◽  
Yunjing Shi ◽  
Guanglong Ge ◽  
...  
Keyword(s):  
Current Density ◽  
High Current Density ◽  
Alloy Layer ◽  
High Current

Implementation of Trigger Unit for Generation of High-Current-Density Electron Beam

2021 ◽  
pp. 1-6
Author(s):  
Anand Abhishek ◽  
Niraj Kumar ◽  
Udit Narayan Pal ◽  
Bhim Singh ◽  
S. A. Akbar
Keyword(s):  
Electron Beam ◽  
Current Density ◽  
High Current Density ◽  
High Current
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