10 September 2014 Enhanced up-conversion in nanocrystals coupled to silver nanowires
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Abstract
We studied physical properties of hybrid nanostructures consisting of α-NaYF4:Tm3+/Yb3+ nanocrystals coupled to single silver nanowires. By using confocal fluorescence microscope we observed much higher intensity of the upconversion emission form nanocrystals placed in the vicinity of nanowires as compared to isolated ones. At the same time Fluorescence Life-time Imaging Microscopy demonstrates shortening of the fluorescence decays times for metal-coupled nanocrystals. We conclude that plasmon-enhanced emission rates are mainly responsible for enhanced up-conversion efficiency.
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A. Prymaczek, A. Prymaczek, K. Ciszak, K. Ciszak, M. Nyk, M. Nyk, D. Piatkowski, D. Piatkowski, S. Mackowski, S. Mackowski, } "Enhanced up-conversion in nanocrystals coupled to silver nanowires", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91631K (10 September 2014); doi: 10.1117/12.2060663; https://doi.org/10.1117/12.2060663
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