Influence of various types of dielectric epoxylite resin on field electron emission properties from the nano and micro scale tungsten and carbon fiber tips

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S.S. ALNAWASREH, A.M. AL-QUDAH, M.A. MADANAT, E.S. BANI ALI, A.M. ALMASRI, M.S. MOUSA

Abstract. This investigation deals with the process of electron emission from composite micro-emitters consisting of a tungsten or carbon fiber core that has been coated with two types of dielectric materials: 1- Clark Electromedical Instruments Epoxylite resin (CEI- resin), 2- Epidian 6 (based on Bisphenol A)(E6-resin). Various properties of these emitters were measured, including the current-voltage (I-V) characteristics that are presented as Fowler-Nordheim (FN) plots, in addition to the corresponding electron emission images. Measurements were carried out under ultra-high vacuum (UHV) conditions with a base pressure of 10-8 mbar. Field electron microscope (FEM) standardized with 10 mm tip (cathode) – screen (anode) distance was employed to characterize the electron emitters.

Keywords
Field Electron Emission, Composite Microemitters, Field Electron Microscope, Fowler-Nordheim

Published online 12/10/2016, 2 pages
Copyright © 2016 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: S.S. ALNAWASREH, A.M. AL-QUDAH, M.A. MADANAT, E.S. BANI ALI, A.M. ALMASRI, M.S. MOUSA, ‘Influence of various types of dielectric epoxylite resin on field electron emission properties from the nano and micro scale tungsten and carbon fiber tips’, Materials Research Proceedings, Vol. 1, pp 247-248, 2016
DOI: http://dx.doi.org/10.21741/9781945291197-61

The article was published as article 61 of the book Dielectric Materials and Applications

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