Počet záznamů: 1
Explanation of the quasi-harmonic field emission behaviour observed on epoxy-coated polymer graphite cathodes
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SYSNO ASEP 0570580 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Explanation of the quasi-harmonic field emission behaviour observed on epoxy-coated polymer graphite cathodes Tvůrce(i) Knápek, Alexandr (UPT-D) RID, ORCID, SAI
Allaham, Mohammad M. (UPT-D)
Burda, Daniel (UPT-D)
Sobola, Dinara (UPT-D)
Drozd, Michal (UPT-D)
Horáček, Miroslav (UPT-D) RID, ORCID, SAICelkový počet autorů 6 Číslo článku 105270 Zdroj.dok. Materials Today Communications. - : Elsevier - ISSN 2352-4928
Roč. 34, March (2023)Poč.str. 7 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Epoxy coating ; Composite electron source ; Field emission ; Field emitter ; Polymer graphite Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika Obor OECD Electrical and electronic engineering CEP VI20192022147 GA MV - Ministerstvo vnitra Způsob publikování Open access Institucionální podpora UPT-D - RVO:68081731 UT WOS 000991800000001 EID SCOPUS 85145981043 DOI 10.1016/j.mtcomm.2022.105270 Anotace In this paper, a new theory is presented to explain the effects of polymer-coated cathodes based on an experiment. Experimental data were obtained by measuring the total emission current from the tip of an electrochemically etched polymer graphite rod, which acts as a disordered array of emission cathodes. Based on the presented experimental results (mainly the time-current characteristics at fixed voltage values), a physical model including an equivalent circuit is presented in this paper to describe its quasi-harmonic behaviour based on the effects of periodic charging and discharging. Explanations of desirable effects such as current stabilization or threshold voltage drop, all of which are due to the dielectric coating and which were previously reported on a single tip, are addressed and put in context with previous results presented by several authors. Finally, based on experimental findings, a possible application of such a pulsing structure towards vacuum devices using emission current is proposed. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2024 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S2352492822021110
Počet záznamů: 1