Large and Versatile Plasmonic Enhancement of Photoluminescence Using Colloidal Metallic Nanocubes
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
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2022
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| _version_ | 1866913513197273088 |
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| author | Mohammad, Khaywah Audrey, Potdevin François, Rvert Rachid, Mahiou Youcef, Ouerdane Anthony, Désert Stéphane, Parola Geneviève, Chadeyron Emmanuel, Centeno Rafik, Smaali Antoine, Moreau |
| author_facet | Mohammad, Khaywah Audrey, Potdevin François, Rvert Rachid, Mahiou Youcef, Ouerdane Anthony, Désert Stéphane, Parola Geneviève, Chadeyron Emmanuel, Centeno Rafik, Smaali Antoine, Moreau |
| contents | Improving phosphor photoluminescence efficiency is a key parameter to boost the performances of many optical devices. In this work, colloidal silver nanocubes, homogeneously spread on a luminescent surface, have proved to help both injecting and extracting light in and out of the photoluminescent layer and hence contributed significantly to the enhancement of the fluorescence. This approach has been applied to two materials: the well-known Y$_3$Al$_5$O$_{12}$:Ce yellow phosphor and an optical quartz. The emission efficiency, for sol-gel derived YAG:Ce layers, has increased of 80\% in the presence of an optimal nanoparticle density -- whereas for quartz, a weakly fluorescent material, the photoluminescence signal can be enhanced by a 200-fold factor. A physical analysis based on simulations shows that the disorder is an important factor and that the surface density of Ag nanoparticles is a crucial parameter. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2211_14685 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Large and Versatile Plasmonic Enhancement of Photoluminescence Using Colloidal Metallic Nanocubes Mohammad, Khaywah Audrey, Potdevin François, Rvert Rachid, Mahiou Youcef, Ouerdane Anthony, Désert Stéphane, Parola Geneviève, Chadeyron Emmanuel, Centeno Rafik, Smaali Antoine, Moreau Optics Chemical Physics Improving phosphor photoluminescence efficiency is a key parameter to boost the performances of many optical devices. In this work, colloidal silver nanocubes, homogeneously spread on a luminescent surface, have proved to help both injecting and extracting light in and out of the photoluminescent layer and hence contributed significantly to the enhancement of the fluorescence. This approach has been applied to two materials: the well-known Y$_3$Al$_5$O$_{12}$:Ce yellow phosphor and an optical quartz. The emission efficiency, for sol-gel derived YAG:Ce layers, has increased of 80\% in the presence of an optimal nanoparticle density -- whereas for quartz, a weakly fluorescent material, the photoluminescence signal can be enhanced by a 200-fold factor. A physical analysis based on simulations shows that the disorder is an important factor and that the surface density of Ag nanoparticles is a crucial parameter. |
| title | Large and Versatile Plasmonic Enhancement of Photoluminescence Using Colloidal Metallic Nanocubes |
| topic | Optics Chemical Physics |
| url | https://arxiv.org/abs/2211.14685 |