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Special Issue "Field Emission from Graphene and other Nanostructures"
Deadline for manuscript submissions: closed (31 December 2018).
Interests: optical and electrical properties of carbon nanotubes, graphene, and 2D materials; semiconductor heterojunctions and their application as photodetectors, solar cells, and chemical sensors; Van der Waals heterojunctions of 2D-layered materials; field-effect transistors; tunneling transistors; nonvolatile memories; CMOS technologies; solid-state radiation detectors; field emission
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The extraction of electrons from a conducting material by an external electric field, known as field emission (FE), is an interesting quantum–mechanical phenomenon, which has many practical applications. High-current and long-lifetime electron sources based on FE, so-called cold-cathodes, have been exploited in high-power and microwave vacuum electronic devices, flat panel displays, scanning and transmission electron microscopy, electron-beam lithography, electric propulsion systems, etc.
Ideal field emitters have a high current at low extraction field for low voltage applications as well as robustness and thermal stability for steady and long-lifetime emission. The lowering of the threshold voltage for FE is achieved using materials with low-workfunction, as well as materials with very rough surface or terminated in sharp tips to benefit from the local field amplification. The field enhancement is due to the convergence of the electric field lines on the sharp features of the conducting surface. Hence, materials naturally shaped or artificially patterned to have protrusions with high aspect ratio (such as nanotubes and nanowires, graphene and other 2D materials, or nanoparticles and nanotips) are suitable for FE. Furthermore, robustness against high current flow requires materials with high electrical and thermal conductivity.
The availability in the past two decades of new nanostructured materials and improved nano-patterning techniques has considerably boosted the research in FE materials and devices. A variety of novel cold-cathodes based on new nanostructured or nanofabricated materials has been added to the traditional Spindt-type field emitters, based on microfabricated Mo tips, and to the Si microtips developed in the early 1970s. These new cold cathodes include carbon nanotubes, graphene, nanodiamonds, semiconducting or metallic nanoparticles and nanowires, nanocones, etc.
This Special Issue, “Field Emission from Graphene and other Nanostructures” of Applied Sciences includes both fundamental studies and applications. It aims at covering all recent experimental and theoretical work on electron field emission from carbon-based and other nanostructured materials.
Prof. Dr. Antonio Di Bartolomeo
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Field emission (FE)
- Cold cathode
- Field enhancement
- Fowler-Nordheim tunneling
- Vacuum electronics
- FE displays
- FE x-ray generation
- FE electron microscopy
- FE electron beam lithography
- FE electric propulsion