Field emission properties of polymer graphite tips prepared by membrane electrochemical etching

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dc.contributor.authorKnápek, Alexandrcs
dc.contributor.authorDallaev, Rashidcs
dc.contributor.authorBurda, Danielcs
dc.contributor.authorSobola, Dinaracs
dc.contributor.authorAllaham, Mohammadcs
dc.contributor.authorHoráček, Miroslavcs
dc.contributor.authorKaspar, Pavelcs
dc.contributor.authorMatějka, Milancs
dc.contributor.authorMousa, Marwancs
dc.coverage.issue7cs
dc.coverage.volume10cs
dc.date.accessioned2021-05-04T06:54:10Z
dc.date.available2021-05-04T06:54:10Z
dc.date.issued2020-07-01cs
dc.description.abstractThis paper investigates field emission behavior from the surface of a tip that was prepared from polymer graphite nanocomposites subjected to electrochemical etching. The essence of the tip preparation is to create a membrane of etchant over an electrode metal ring. The graphite rod acts here as an anode and immerses into the membrane filled with alkali etchant. After the etching process, the tip is cleaned and analyzed by Raman spectroscopy, investigating the chemical composition of the tip. The topography information is obtained using the Scanning Electron Microscopy and by Field Emission Microscopy. The evaluation and characterization of field emission behavior is performed at ultra-high vacuum conditions using the Field Emission Microscopy where both the field electron emission pattern projected on the screen and current–voltage characteristics are recorded. The latter is an essential tool that is used both for the imaging of the tip surfaces by electrons that are emitted toward the screen, as well as a tool for measuring current–voltage characteristics that are the input to test field emission orthodoxy.en
dc.formattextcs
dc.format.extent1-12cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNanomaterials. 2020, vol. 10, issue 7, p. 1-12.en
dc.identifier.doi10.3390/nano10071294cs
dc.identifier.issn2079-4991cs
dc.identifier.other164395cs
dc.identifier.urihttp://hdl.handle.net/11012/196661
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofNanomaterialscs
dc.relation.urihttps://www.mdpi.com/2079-4991/10/7/1294cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2079-4991/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectpolymer graphite tipen
dc.subjectelectrochemical etchingen
dc.subjectfield emission microscopyen
dc.titleField emission properties of polymer graphite tips prepared by membrane electrochemical etchingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-164395en
sync.item.dbtypeVAVen
sync.item.insts2021.05.04 08:54:10en
sync.item.modts2021.05.04 08:14:25en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
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