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Prof. Mohamed Ali Atya Hasouba :: Publications:

Comparison of Surface Modification of CR-39 Polymer Film Using RF and DC Glow Discharges Plasma
Authors: Mohamed Ali Hassouba and Nagia Dawood
Year: 2017
Keywords: Surface Modification by Plasma, RF Discharge, DC Discharge, CR-39 Polymer Film
Journal: Journal of Modern Physics
Volume: 8
Issue: 1
Pages: Not Available
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper Mohamed Ali Atya Hasouba_-7503296.pdf
Supplementary materials Not Available

Surfaces of optical elements are deposited by antireflection coatings (ARCs) to decrease the reflection of light. Surface needs treatment before depositing the ARC one of treatment processes by using plasma for adhesion improvement and surface hardening. A comparison of RF and DC glow discharges treated CR-39 polymer films gives insight into the mechanism of these surface processes. The surface properties of the plasma-treated samples are examined by microscopy techniques include contact angle measurements, scanning electron microscopy (SEM), atomic force microscopy (AFM), infrared (IR) spectroscopy and refractive index measurements. Results show that the plasma treatment modifies the polymer surface in both composition and morphology. It is found that the surface wettability is enhanced after plasma treatment. It is found that, RF plasma is more effective than DC plasma in CR-39 surface modification, and becomes more uniform, as it implants more oxygen atoms into the surface and makes the contact angle declining to a lower level.

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