Improvement of adhesion between plastic substrates and antireflection layers by ion-assisted reaction

Jung Hwan Lee, Jun Sik Cho, Seok Keun Koh, Donghwan Kim

    Research output: Contribution to journalArticlepeer-review

    40 Citations (Scopus)

    Abstract

    Enhanced adhesion was observed between antireflection (AR) layers and polycarbonate (PC) substrates by irradiating the substrates with low-energy Ar ions in an O2 environment. The AR coating consisted of SiO 2/TiO2 multi-layers that were deposited by ion-beam sputtering. Improved adhesion was evidenced by a peeling test. Ion irradiation caused the surface characteristics to become more hydrophilic as measured by the water contact angle, which decreased from 76° to 18° after the ion irradiation. X-ray photoelectron spectroscopy analysis showed that the concentration of hydrophilic groups such as C=O and C-O increased as a result of the ion irradiation. The changes in surface roughness and in optical transmittance were negligible. The optical reflectance of the AR/PC structure was below 1% in the visible range.

    Original languageEnglish
    Pages (from-to)147-151
    Number of pages5
    JournalThin Solid Films
    Volume449
    Issue number1-2
    DOIs
    Publication statusPublished - 2004 Feb 2

    Bibliographical note

    Copyright:
    Copyright 2008 Elsevier B.V., All rights reserved.

    Keywords

    • Adhesion
    • Antireflection
    • Ion beam
    • Ion-assisted reaction
    • Polycarbonate

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films
    • Metals and Alloys
    • Materials Chemistry

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