Comprehensive Analysis of E478 Single-Component Epoxy Resin and Tungsten-E478 Interface for Metallic-Polymer Composite Electron Source Applications
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Date
2024-06-29
Authors
Allaham, Mohammad Mahmoud
ORCID
0000-0002-4931-0419Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
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Abstract
This study provides comprehensive elemental, optical, and energy gap characteristics of the E478 single-component epoxy resin. This type of epoxy resin has imperative applications in medium voltage insulation and cold field emission of electrons. X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and hydrogen nuclear magnetic resonance (1H-NMR) were used to study the elemental and structural analyses, ultraviolet photoelectron spectroscopy (UPS) was used to obtain the local work function and the ionization potential energies, and ultraviolet/visible light spectroscopy (UV/VIS) was used to report the optical and energy gap characteristics of the epoxy resin being studied. Moreover, the UPS and UV/VIS analyses were merged to obtain the electron affinity of the E478 epoxy resin and to study the epoxy's energy band diagram and the tungsten-epoxy interface band structure. The results showed that the E478 epoxy resin is considered an n-type semiconductor of energy gap similar to 3.94 eV, local work function similar to 3.42 eV, ionization potential similar to 6.10 eV, electron affinity similar to 2.16 eV, and tungsten-epoxy Schottky contact barrier height similar to 2.50 eV.
Description
Citation
ACS OMEGA. 2024, vol. 9, issue 28, p. 30975-30985.
https://pubs.acs.org/doi/10.1021/acsomega.4c04052
https://pubs.acs.org/doi/10.1021/acsomega.4c04052
Document type
Peer-reviewed
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Published version
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Language of document
en