Impact of Alpha Rays on the Optoelectronic Properties of Epoxy Resin Thick Films

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-02 DOI:10.21315/jps2024.35.1.3

Z. Rasheed, L. M. Raoof, M. Alrakabi

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Abstract

Irradiated epoxy thick films are important for optical properties and may be used in many optical applications. This study aims to evaluate the effect of alpha irradiation on the optical and structural properties of epoxy thick films. Epoxy resin films were prepared by mixing epoxy resin (A) with hardener (B) at a mixing ratio of 3:1. Thus, specific thick films with thicknesses of 0.7 mm,0.8 mm and 1 mm were manufactured. Using visible and ultraviolet spectroscopy is one of the most important methods for studying polymers band gaps and electrical properties. The absorbance and transmittance spectra were used to investigate the optical properties of epoxy coatings of different thicknesses over a wavelength range of 300 nm–900 nm. Optical properties, such as absorption coefficient, refractive index, extinction coefficient, real dielectric constant, imaginary dielectric and optical band gap, were measured. The results show that the epoxy thick films have good optical transparency in the low-wavelength region. The results showed that increasing the thickness of the resin films decreased the optical energy gap and refractive index while increasing the absorption and extinction coefficients. In comparison, the effect of irradiation on an epoxy film of thickness 1 mm leads to an increase in the transmittance spectrum and energy gap and a decrease in the optical constants. The Fourier-transform infrared (FTIR) spectrum of the films was examined and showed the types of chemical bonds of the epoxy films before and after irradiation.

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阿尔法射线对环氧树脂厚膜光电特性的影响

辐照环氧树脂厚膜的光学特性非常重要，可用于多种光学应用。本研究旨在评估α辐照对环氧树脂厚膜光学和结构特性的影响。环氧树脂薄膜是由环氧树脂（A）和固化剂（B）以 3:1 的混合比混合而成。因此，制备出了厚度分别为 0.7 毫米、0.8 毫米和 1 毫米的特定厚膜。使用可见光和紫外线光谱是研究聚合物带隙和电特性的最重要方法之一。在 300 nm-900 nm 波长范围内，利用吸收光谱和透射光谱来研究不同厚度环氧涂层的光学特性。测量了吸收系数、折射率、消光系数、实介电常数、虚介电常数和光带隙等光学特性。结果表明，环氧树脂厚膜在低波长区域具有良好的光学透明性。结果表明，增加树脂薄膜的厚度会降低光能隙和折射率，同时增加吸收系数和消光系数。相比之下，辐照对厚度为 1 毫米的环氧树脂薄膜的影响导致透射光谱和能隙增大，光学常数减小。对薄膜的傅立叶变换红外光谱进行了检测，结果显示了环氧薄膜在辐照前后的化学键类型。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.