Surface functionalization of cyclic olefin copolymer (COC) with evaporated TiO2 thin film
(2015) Applied Surface Science — Vol. 363, p. 670-675 (2015)
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- tCyclic olefin copolymer (COC) is a new class of thermoplastic polymers used for a variety of applicationsranging from bio-sensing to optics. However, the hydrophobicity of native COC hampers the furtherdevelopment and application of this material [1]. In this work, we report the structural, morphological,and optical properties of the TiO2/COC hybrid material, which provides a desirable substrate for opticaldevices and subsequent surface modifications. The TiO2film on COC substrate was deposited by the evap-oration method, and it was characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction(XRD), profilometry and atomic force microscope (AFM). Using an UV-vis spectrophotometer, we foundthat the transmittance of the TiO2/COC hybrid material in the visible domain reached 80%. The TiO2/COChybrid appeared to be stable in most of the assessed polar solvents and acid/basic solutions. The newTiO2/COC hybrid material and the robust fabrication method are expected to enable a variety of BioMEMSapplications.
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El Fissi, L., Vandormael, D., Houssiau, L., & Francis, L. (2015). Surface functionalization of cyclic olefin copolymer (COC) with evaporated TiO2 thin film. Applied Surface Science, 363, 670-675. https://doi.org/10.1016/j.apsusc.2015.11.234 (Original work published 2015)