Optical Materials Express · 2011 · 24 citations · 17 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials CharacterizationMaterials ChemistryThin FilmsAtomic Force MicroscopyGelsPolymer Thin FilmsRefractive IndexThin Film Optical PropertiesThin-film MaterialsAtomic Force Microscopy AnalysisOptical Thin Film CharacterizationSol-gel MaterialsSol-gel SynthesisSol-gel Thin FilmsSol-gel TransitionThin Oxide FilmsThin-film Refractive Index
Glycidylmethacrylate and propylene oxide were used in the epoxide initiated formation of titanium oxide sols which were spun to form thin films. Glycidylmethacrylate can be used to tune the refractive index of the resulting composite and allowed us to photo-pattern the material. The refractive index of the films can be controlled between 1.76 and 2.05 at 589 nm. The thicknesses of the films ranged between 80 and 200 nm and the rms roughness below 2 nm. The films were characterized by atomic force microscopy (AFM), electric force microscopy (EFM), x-ray photoelectron spectroscopy (XPS) and ellipsometry, among other techniques.
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