Bulk-like emission in the visible spectrum of colloidal LiYF4:Pr nanocrystals downsized to 10 nm

Download statistics - Document (COUNTER):

Komban, R.; Spelthann, S.; Steinke, M.; Ristau, D.; Ruehl, A. et al.: Bulk-like emission in the visible spectrum of colloidal LiYF4:Pr nanocrystals downsized to 10 nm. In: Nanoscale advances 4 (2022), S. 2973-2978. DOI: https://doi.org/10.1039/D2NA00045H

Repository version

To cite the version in the repository, please use this identifier: https://doi.org/10.15488/12474

Selected time period:


Sum total of downloads: 59

Though Pr3+ doped LiYF4 (LiYF4:Pr3+) bulk crystals are a well-known laser gain material with several radiative transitions, their nanocrystal counterparts have not been investigated with regards to these. Through downsizing to the nanoscale, novel applications are expected, especially in composite photonic devices. For example, nanocrystals in stable colloidal form with narrow size distribution are highly desirable to reduce scattering in such composites. Herein, we synthesized monodispersed LiYF4:Pr3+ nanocrystals having a size of 10 nm resulting in colorless clear stable colloidal dispersions and conducted an extensive optical characterization for the first time. We observed unexpected yet intense emission with excited state lifetimes comparable to bulk crystals in the visible spectrum through excitation at 444 nm and 479 nm. In macroscopic bulk crystals, this emission is only exploitable through excitation of a different, subjacent energy level. A comprehensive comparison to the bulk crystals provides deeper insight into the excitation mechanism and performance of these nanocrystals. The presented results pave the way for developing application-oriented LiYF4:Pr3+ nanocrystals as emitters with tailored properties for quantum optics or biomedical applications.
License of this version: CC BY-NC 3.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2022
Appears in Collections:Fakultät für Mathematik und Physik

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 26 44.07%
2 image of flag of United States United States 15 25.42%
3 image of flag of China China 6 10.17%
4 image of flag of Romania Romania 1 1.69%
5 image of flag of Poland Poland 1 1.69%
6 image of flag of Netherlands Netherlands 1 1.69%
7 image of flag of Korea, Republic of Korea, Republic of 1 1.69%
8 image of flag of Ireland Ireland 1 1.69%
9 image of flag of Hong Kong Hong Kong 1 1.69%
10 image of flag of Switzerland Switzerland 1 1.69%
    other countries 5 8.47%

Further download figures and rankings:


Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Search the repository