Results 11 to 20 of about 314 (212)
Cold Cathodes with Two-Dimensional van der Waals Materials
Nanomaterials, 2023 Two-dimensional van der Waals materials could be used as electron emitters alone or stacked in a heterostructure. Many significant phenomena of two-dimensional van der Waals field emitters have been observed and predicted since the landmark discovery of ...
Yicong Chen, Jun Chen, Zhibing Li
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Investigation of gas purging and cold storage impact on PEM fuel cell system performance for aeronautical applications [PDF]
E3S Web of Conferences, 2022 Durability of proton exchange membrane fuel cell systems under cold weather conditions is essential and a critical challenge for transportation applications.
Montaner Ríos Gema +4 more
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ON THE INFLUENCE OF THE SHAPE OF ANODE VOLTAGE PULSE ON THE OPERATION STABILITY OF SPATIAL-HARMONIC MAGNETRON WITH COLD SECONDARY EMISSION CATHODE [PDF]
Радиофизика и электроника, 2018 One of the main problems faced by developers of modulators for spatial-harmonic magnetrons with cold secondary emission cathode is the selection of the correct shape of an anode voltage pulse that will ensure the stable operation of the magnetron.
V. А. Markov, V. D. Naumenko
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Nanomaterials, 2021 A fully vacuum-sealed addressable flat-panel X-ray source based on ZnO nanowire field emitter arrays (FEAs) was fabricated. The device has a diode structure composed of cathode panel and anode panel.
Chengyun Wang +5 more
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Journal of Materials Research and Technology, 2022 Although wire arc additive manufacturing (WAAM) of Ti alloys using gas metal arc yields a high deposition rate, cathode spots exhibit unstable behavior.
Tae Hyun Lee +3 more
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Cold cathode investigation [PDF]
1973 International Electron Devices Meeting, 1973 Experiments for the evaluation of a cold cathode electron gun are described. Different anode and cathode materials and configurations were tried. Small signal gains of 6.3 percent/cm were measured. It was found that the same small signal gains could be obtained with less energy deposition in the laser gas with the larger pre-ionizing currents from a ...
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Applied Sciences, 2018 The carbon nanotube (CNT) cold cathode is an attractive choice for millimeter and terahertz vacuum electronic devices owning to its unique instant switch-on and high emission current density.
Qingyun Chen +5 more
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Maximizing the Field Emission Performance of Graphene Arrays
Nanomaterials, 2020 To design efficient and powerful field emission cathodes, the screening effect is of great importance and should be traded off between screening and emitter number.
Kaiqiang Yang +7 more
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Advanced Photonics Research, 2022 Exploring novel nanotechnology schemes for tunable broadband vacuum photodetection devices is of great significance. Herein, a strategy to combine a field‐emission cold cathode with plasmonic nanostructures to form a plasmon‐enhanced field‐emission ...
Yan Shen +4 more
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Australian Journal of Physics, 1962 Many theories have been proposed in the last 15 years to explain the observed high current densities associated with the cold cathode arcs. All of these theories are somewhat inadequate in themselves, but a combination of some of the more recent theories gives a satisfactory explanation of these high current densities.
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