Plasmonic influence on the up-conversion luminescence in NaYF4:Er3+/Yb3+ nanocrystals

K. Ciszak; M. Nyk; D. Piątkowski; S. Maćkowski

doi:10.1117/12.2061331

17 August 2014 Plasmonic influence on the up-conversion luminescence in NaYF₄:Er³⁺/Yb³⁺ nanocrystals

K. Ciszak, M. Nyk, D. Piątkowski, S. Maćkowski

Proceedings Volume 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII; 91632M (2014) https://doi.org/10.1117/12.2061331
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

We study the fluorescence properties of up-converting α-NaYF₄:Er³⁺/Yb³⁺ nanocrystals (NCs) in the presence of spherical Au nanoparticles. The effects of plasmon excitations in the Au nanoparticles were studied using scanning confocal fluorescence microscope. The results show that the ⁴S_3/2→ ⁴I_15/2 transition in erbium ions, which appears at 540 nm, resonant with the plasmon band of the Au nanoparticles, is efficiently quenched. In contrast, in the case of ⁴F_9/2→ ⁴I_15/2 transition, which appears at 650 nm, we find the increase of emission intensity. Complementary measurement of fluorescence lifetimes of individual NaYF₄:Er³⁺/Yb³⁺ nanocrystals reveals that plasmonic excitations in Au nanoparticles influence the dynamics of both emission band in erbium ions.

Citation Download Citation

K. Ciszak, M. Nyk, D. Piątkowski, and S. Maćkowski "Plasmonic influence on the up-conversion luminescence in NaYF₄:Er³⁺/Yb³⁺ nanocrystals", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91632M (17 August 2014); https://doi.org/10.1117/12.2061331

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