Rare earth strontium fluoride nanocrystals prepared via sol gel synthesis - Spectroscopic study of upconversion luminescence properties
- Obtaining high quality upconverting nanocrystals with only little crystal defects and hence, a high luminescence, affords a reliable synthesis route. Only this guarantees the reproducibility of the material and its spectroscopic properties required for future application. The fluorolytic sol-gel synthesis appears to be a convenient attempt, as this is a method with only few steps influencing the material properties, which can be well controlled. Also creating bright upconverting nanocrystals requires a profound understanding of the interplay of photophysical processes like multiphoton absorption, radiative and non-radiative pathways, and energy transfer in the material. Based on steady-state and time resolved luminescence measurements at different excitation power densities, the influence of the lanthanide doping ratio and synthesis parameters such as the annealing process on SrF2-nanocrystals obtained via the fluorolytic sol-gel synthesis was systematically studied.
Autor*innen: | Melissa-Jane Monks |
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Weitere Person: | B. Ritter, Christian WürthORCiD, T. Krahl, E. Kemnitz, Ute Resch-GengerORCiD |
Dokumenttyp: | Posterpräsentation |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2017 |
DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten | |
Freie Schlagwörter: | Annealing study; Doping study; Luminescence; Strontiumfluoride; Upconversion |
Veranstaltung: | GDCh Wissenschaftsforum Chemie |
Veranstaltungsort: | Berlin, Germany |
Beginndatum der Veranstaltung: | 10.09.2017 |
Enddatum der Veranstaltung: | 14.09.2017 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 17.11.2017 |
Referierte Publikation: | Nein |