Gold-shell coated NaYF4:Er3+, Yb3+ nanoparticles for the enhancement of fluorescence emission
- In the present work, we aim to explore how far the UCNP emission intensity can be enhanced by the aid of plasmonic interactions using a gold shell. The distance between the UCNP core and the gold shell is varied by adding a silica spacer of different thicknesses. The synthetic conditions for obtaining UCNP@SiO2@Au core-shell nanoparticles with precisely tuneable silica shell thicknesses were investigated. A gold shell on the UCNP@SiO2 nanoparticles is expected to give rise to a noticeable enhancement of particle brightness and fluorescence, given that the thicknesses of the silica shell and the gold coating can be controlled and fine-tuned. First single particle studies revealing shortening of the Er3+ lifetimes suggest that plasmonic enhancement occurs.
| Autor*innen: | Maysoon I. Saleh, C Kembuan, Bastian RühleORCiD, C Graf, Ute Resch-GengerORCiD |
|---|---|
| Dokumenttyp: | Posterpräsentation |
| Veröffentlichungsform: | Präsentation |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2018 |
| DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
| Freie Schlagwörter: | Plasmonic enhancement; Silica coating; Upconversion nanoparticles |
| Veranstaltung: | 2nd Conference and Spring School on Properties, Design and Applications of Upconversion Nanomaterials |
| Veranstaltungsort: | Valencia, Spain |
| Beginndatum der Veranstaltung: | 02.04.2018 |
| Enddatum der Veranstaltung: | 06.04.2018 |
| Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
| Datum der Freischaltung: | 22.05.2018 |
| Referierte Publikation: | Nein |

