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Proceedings Paper

Enhanced up-conversion in nanocrystals coupled to silver nanowires
Author(s): A. Prymaczek; K. Ciszak; M. Nyk; D. Piatkowski; S. Mackowski
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Paper 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.

Paper Details

Date Published: 10 September 2014
PDF: 4 pages
Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91631K (10 September 2014); doi: 10.1117/12.2060663
Show Author Affiliations
A. Prymaczek, Nicolaus Copernicus Univ. (Poland)
K. Ciszak, Nicolaus Copernicus Univ. (Poland)
M. Nyk, Wroclaw Univ. of Technology (Poland)
D. Piatkowski, Nicolaus Copernicus Univ. (Poland)
S. Mackowski, Nicolaus Copernicus Univ. (Poland)

Published in SPIE Proceedings Vol. 9163:
Plasmonics: Metallic Nanostructures and Their Optical Properties XII
Allan D. Boardman, Editor(s)

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