| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Knápek, Alexandr
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Analysis of processing efficiency, surface, and bulk chemistry, and nanomechanical properties of the Monel<sup>®</sup> alloy 400 after ultrashort pulsed laser ablationcitations
- 2024Comprehensive analysis of charge carriers dynamics through the honeycomb structure of graphite thin films and polymer graphite with applications in cold field emission and scanning tunneling microscopycitations
- 2024Analysis of processing efficiency, surface, and bulk chemistry, and nanomechanical properties of the Monel® alloy 400 after ultrashort pulsed laser ablationcitations
- 2024Field Ion Microscopy of Tungsten Nano-Tips Coated with Thin Layer of the EpoxyResin
- 2023Electrical characteristics of different concentration of silica nanoparticles embedded in epoxy resincitations
- 2021PVDF Fibers Modification by Nitrate Salts Dopingcitations
- 2021Case Study of Polyvinylidene Fluoride Doping by Carbon Nanotubescitations
- 2021Testing the performance of Murphy-Good plots when applied to current-voltage characteristics of Si field electron emission tipscitations
- 2021Characterization of Polyvinylidene Fluoride (PVDF) Electrospun Fibers Doped by Carbon Flakescitations
- 2021Field emission properties of polymer graphite tips prepared by membrane electrochemical etchingcitations
- 2019Metody přípravy a charakterizace experimentálních autoemisních katod ; Methods of Preparation and Characterization of Experimental Field-Emission Cathodes
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article
Comprehensive analysis of charge carriers dynamics through the honeycomb structure of graphite thin films and polymer graphite with applications in cold field emission and scanning tunneling microscopy
Abstract
Polymer graphite electron sources have performed satisfactorily as field emission emitters and scanning tunneling microscopy probes in the past few years. However, the emission process was characterized by limited total emission currents. This paper introduces the elemental, vibrational, electronic structure, and optical analysis of polymer graphite and glass-graphite composite field emission cathodes to study these limitations. Moreover, the field emission characteristics are studied including the changes in the potential energy barrier of the used materials and structures. Among the studied structures, the cathodes prepared from graphite thin films deposited on a micropointed glass substrate (film-GMF) showed superior performance as random field emission arrays. This includes obtaining much higher emission current values 20 times) and lower threshold voltages 1/2) compared to the results obtained from polymer graphite samples. The enhancement factor in such emitters is believed to be the three-dimensional honeycomb structure of graphite. Moreover, the study includes applying graphite coatings to tungsten nano-field emission cathodes and scanning tunneling microscopy probes, which improves the performance of such cathodes/probes in both microscopic techniques.