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.
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
The article was published as article 61 of the book Dielectric Materials and Applications
 Al-Qudah, A. M., Mousa, M. S., Fischer, A. (2015), Effect of insulating layer on the field electron emission performance of nano-apex metallic emitters. IOP Conf. Series: Materials Science and Engineering, 92,1-8, 012021. http://dx.doi.org/10.1088/1757-899x/92/1/012021
 Moran Meza, J. A., Lubin, C., Thoyer, F., Villegas Rosales, L. A., Guitarra Espinoza, A. A., Martin, F., and County, J. (2015) Fabrication of ultra-sharp tips from carbon fiber for scanning tunneling microscopy investigations of epitaxial graphene on 6H-SiC(0001) surface, Carbon 86, 363-370. http://dx.doi.org/10.1016/j.carbon.2015.01.050
 Mousa, M. S. (2007) Influence of a dielectric coating on electron emission from micropoint electron sources. Surf. Interface Anal., 39, 102-110. http://dx.doi.org/10.1002/sia.2470
 Winkler, J. H., Gedanken von den Eigenschaften, Wirkungen und Ursachen der Electrizität nebst Beschreibung zweier electrischer Maschinen. (Verlag B. Ch.Breitkopf, Leipzig, 1744).
 Alnawasreh, S., Mousa, M. S., and Al-Rabadi, A. N. (2015) Investigating the effects of sample conditioning on nano-apex carbon fiber tips for efficient field electron emission. Jo. J. Phys. 8 (3), 95-101.
 Latham, R. V., Mousa, M. S., Hot electron emission from composite metal-insulator micropoint cathodes, J. Phys. D: Appl. Phys. 19 (1986) 699-713. http://dx.doi.org/10.1088/0022-3727/19/4/021