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Pulsed laser deposition of polymers doped with fluorescent probes. Application to environmental sensors

AuthorsRebollar, Esther ; Villavieja, M.M.; Gaspard, Solenne ; Oujja, M. ; Corrales, Teresa ; Georgiou, S.; Domingo, Concepción ; Bosch, Paula ; Castillejo, Marta
Issue Date1-Apr-2007
PublisherInstitute of Physics Publishing
CitationJournal of Physics: Conference Series 59: 305-309 (2007)
AbstractPulsed laser deposition (PLD) has been used to obtain thin films of poly(methyl methacrylate) and polystyrene doped with fluorescent probes, amino aromatic compounds S5 and S6, that could be used to sense the presence of contaminating environmental agents. These dopants both in solution and inserted in polymeric films are sensitive to changes in pH, viscosity and polarity, increasing their fluorescence emission and/or modifying the position of their emission band. Films deposits on quartz substrates, obtained by irradiating targets with a Ti:Sapphire laser (800 nm, 120 fs pulse) were analyzed by optical and Environmental Scanning Electron Microscopy, Fluorescence Microscopy, Laser-Induced Fluorescence, Micro Raman Spectroscopy and Flow Injection Analysis-Mass Spectrometry. The transfer of the polymer and the probe to the substrate is observed to be strongly dependent on the optical absorption coefficient of the polymeric component of the target at the irradiation wavelength. © 2007 IOP Publishing Ltd.
Description5 p.; 5 fig.
Publisher version (URL)http://dx.doi.org/10.1088/1742-6596/59/1/064
Identifiersdoi: 10.1088/1742-6596/59/1/064
issn: 1742-6588
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