Increased upconversion quantum yield in plasmonic structures

A. Elhalawany; W. E. Hayenga; S. He; C. Lantigua; N. J. J. Johnson; A. Almutairi; M. Khajavikhan

doi:10.1117/12.2061910

10 September 2014 Increased upconversion quantum yield in plasmonic structures

A. Elhalawany, W. E. Hayenga, S. He, C. Lantigua, N. J. J. Johnson, A. Almutairi, M. Khajavikhan

Proceedings Volume 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII; 916331 (2014) https://doi.org/10.1117/12.2061910
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

Upconversion processes have found widespread applications in drug delivery, bio-imaging and solar-cells. In this paper we present a theoretical model that analyzes the impact of a plasmonic shield structure on the quantum yield of upconversion nanoparticles. We use this model to assess the efficiency of NaYF₄: Tm³⁺ Yb³⁺/NaYF₄ core-shell nanoparticles when embedded in a polymer matrix and covered by a metallic can-like structure. We find that as a result of this specific plasmonic structure, the upconversion luminescence from NIR to UV can be increased by a factor of 30.

Citation Download Citation

A. Elhalawany, W. E. Hayenga, S. He, C. Lantigua, N. J. J. Johnson, A. Almutairi, and M. Khajavikhan "Increased upconversion quantum yield in plasmonic structures", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 916331 (10 September 2014); https://doi.org/10.1117/12.2061910

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