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21 August 2020 A spectroscopic study on the interaction between upconversion nanoparticles and plasmonic nanostructure
Kyuyoung Bae, Ananda Das, Bo Xu, Wounjhang Park
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Proceedings Volume 11467, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVII; 114671A (2020) https://doi.org/10.1117/12.2568821
Event: SPIE Nanoscience + Engineering, 2020, Online Only
Abstract
In order to overcome the low quantum yield of upconversion nanoparticles (UCNPs), plasmonic nanostructures have been used due to their strongly modified local E-field. However, the complex nature of plasmon-upconversion interaction by field enhancement and luminescence quenching is not well appreciated in general. Here, we present a spectroscopic study on the interaction between NaYF4:Yb3+,Er3+ UCNPs and gold nanostructures. The luminescence is monitored as the nanostructure geometry is varied. The interplay between the positive effect of local field enhancement and the negative effect of luminescence quenching is carefully analyzed by numerical simulations and rate equation analysis.
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Kyuyoung Bae, Ananda Das, Bo Xu, and Wounjhang Park "A spectroscopic study on the interaction between upconversion nanoparticles and plasmonic nanostructure", Proc. SPIE 11467, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVII, 114671A (21 August 2020); https://doi.org/10.1117/12.2568821
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KEYWORDS
Nanostructures
Plasmonics
Upconversion
Spectroscopy
Nanoparticles
Luminescence
Gold
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