Comprehensive Analysis of E478 Single-Component Epoxy Resin and Tungsten-E478 Interface for Metallic-Polymer Composite Electron Source Applications

IF 3.7 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY ACS Omega Pub Date : 2024-06-29 DOI:10.1021/acsomega.4c04052

Mohammad M. Allaham*,

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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 ∼3.94 eV, local work function ∼3.42 eV, ionization potential ∼6.10 eV, electron affinity ∼2.16 eV, and tungsten-epoxy Schottky contact barrier height ∼2.50 eV.

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全面分析 E478 单组分环氧树脂和钨-E478 接口在金属-聚合物复合电子源中的应用

本研究提供了 E478 单组分环氧树脂的全面元素、光学和能隙特性。这种环氧树脂在中压绝缘和电子冷场发射方面有着重要的应用。X 射线光电子能谱（XPS）、拉曼光谱和氢核磁共振（1H-NMR）用于研究元素和结构分析，紫外光电子能谱（UPS）用于获得局部功函数和电离势能，紫外/可见光光谱（UV/VIS）用于报告所研究的环氧树脂的光学和能隙特性。此外，通过合并 UPS 和紫外/可见光分析，还获得了 E478 环氧树脂的电子亲和性，并研究了环氧树脂的能带图和钨-环氧界面带结构。结果表明，E478 环氧树脂被认为是一种 n 型半导体，其能隙∼3.94 eV，局部功函数∼3.42 eV，电离电位∼6.10 eV，电子亲和力∼2.16 eV，钨-环氧肖特基接触势垒高度∼2.50 eV。

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来源期刊

ACS Omega Chemical Engineering-General Chemical Engineering

CiteScore

6.60

自引率

4.90%

发文量

3945

审稿时长

2.4 months

期刊介绍： ACS Omega is an open-access global publication for scientific articles that describe new findings in chemistry and interfacing areas of science, without any perceived evaluation of immediate impact.