Impact of plasmonic nanoparticles on up-conversion luminescence and efficiency of erbium-doped ceria nanoparticles under 780 nm excitation

Up-conversion process is being widely studied due to its enormous applications such as bioimaging, energy harvesting, and optical sensors. However, the low conversion efficiency can limit these applications. In this paper, a detailed study about the effect of using plasmonic metallic nanostructures...

Full description

Saved in:
Bibliographic Details
Published in:Journal of luminescence 2018-12, Vol.204, p.581-588
Main Authors: Elrafei, S.A., Kandas, I., Shehata, N., Samir, E., Okaz, A., Rizk, M.
Format: Article
Language:English
Subjects:
Ceria
Erbium
Gold nanoparticles
Plasmonics
Quantum efficiency
Up-conversion
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Up-conversion process is being widely studied due to its enormous applications such as bioimaging, energy harvesting, and optical sensors. However, the low conversion efficiency can limit these applications. In this paper, a detailed study about the effect of using plasmonic metallic nanostructures is presented, aiming to support the up-conversion process under 780 nm excitation. The targeted material is erbium-doped ceria material due to its promising optical properties along with the relatively low-phonon nature of ceria host. At an average distance of 0.67 nm between Er ions, the efficiency can be improved from 1.58% to 13.52% for green emission and from 0.007% to 0.234% for the red one, which corresponds to 30-fold and 8.5-fold, respectively. Also, some other parameters such as irradiance and multi-phonon relaxations and their impact on the efficiency, according to the added gold nanoparticles are studied. Such promising modeling results could help in further studies regarding the addition of metallic nanoparticles to improve the quantum conversion efficiency due to its plasmonic effect.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2018.08.026