The coupling between Eu 3+ rare earth emitters and Al has been investigated in multilayer structures, which consist of an Eu:Y 2 O 3 phosphor film deposited between percolated and continuous Al films. Passive buffer Y 2 O 3 layers were deposited between phosphor and Al films with different thicknesses to analyze the role of the Eu–Al distance on the nanostructuration and emission of the Eu:Y 2 O 3 film. By using Eu 3+ emitters as local structural probes completed by transmission electron microscopy analyses, we show that the deposition on Al promotes the growth of the cubic crystallites. A fluorescence analysis allows us to evaluate the presence of a perturbed structural shell around the cubic core of the crystallites. Moreover, the enhancement observed at short distances is attributed to the localized plasmon resonance of the percolated upper Al film.
N Abdellaoui, A Pereira, A Berthelot, B Moine, N P Blanchard and A Pillonnet
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N Abdellaoui, A Pereira, A Berthelot, B Moine, N P Blanchard and A Pillonnet
Click for full article
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