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Sökning: WFRF:(Keyes Tia E.)

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  • Damm, Signe, et al. (författare)
  • Surface enhanced luminescence and Raman scattering from ferroelectrically defined Ag nanopatterned arrays
  • 2013
  • Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 103:8, s. 083105-
  • Tidskriftsartikel (refereegranskat)abstract
    • Ag nanopatterned arrays prepared using periodically proton exchanged templates have been demonstrated to support surface enhanced luminescence. Fluorescence lifetime imaging reveals that luminescence intensity is greatest on Ag and that the lifetime of the molecular probe is reduced, in line with a surface enhanced luminescence mechanism. Studies establish that the substrate simultaneously supports surface enhanced luminescence and Raman scattering. Spatial dependence along the nanopatterned arrays shows <7% variation in Raman scattering signal intensity, offering high reproducibility for practical applications. Fluorophores emitting near the plasmon absorption maxima are enhanced 4-fold.
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  • Yaqub, Mustansara, et al. (författare)
  • Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide
  • 2018
  • Ingår i: Electrochimica Acta. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0013-4686 .- 1873-3859. ; 287, s. 78-86
  • Tidskriftsartikel (refereegranskat)abstract
    • Dawson-type 18-molybdodisulphate anion [S2Mo18O62](4-) has been immobilized within polypyrrole film by means of electrochemical polymerization. The polymer modified electrodes have been characterized with voltammetry and surface based techniques. The noticeable change in electrochemical properties of [S2Mo18O62](4-) has been observed with immobilization, which is favours its electrocatalytic performance. Hydrogen peroxide reduction in neutral pH as a standard system for electrocatalytic properties assessment has been studied on composite film-modified electrodes and showed the sensitivity of 127 mAM(-1) cm(-2). Developed system showed high stabilities towards redox switching and peroxide reduction. (C) 2018 Published by Elsevier Ltd.
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  • Resultat 1-4 av 4

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