Abstract
Ag nanoparticles (Ag-NPs) were adsorbed onto the surface of phosphor NaYFPO4:Dy3+ through an in situ reduction. The structure, morphology, composition, and optical properties were confirmed by X-ray diffraction, high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, and photoluminescence spectroscopy, respectively. The excitation peaks slightly shifted to long waves in the presence of Ag-NPs. Emission intensity increased by 115% owing to the enhancement of the local electromagnetic field near Ag-NPs because of the localized surface plasmon resonance. All these results indicated that the sample was a promising candidate for white LED devices.
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This work was supported by the Natural Science Foundation of Inner Mongolia 2016MS0209.
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Zhao, W., Wen, H., Liu, J. et al. Surface plasmon-enhanced luminescence of NaYFPO4:Dy3+ phosphor by Ag nanoparticles. Appl. Phys. A 125, 182 (2019). https://doi.org/10.1007/s00339-019-2488-x
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DOI: https://doi.org/10.1007/s00339-019-2488-x