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

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dc.identifier.uri http://dx.doi.org/10.15488/12474
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/12573
dc.contributor.author Komban, Rajesh
dc.contributor.author Spelthann, Simon
dc.contributor.author Steinke, Michael
dc.contributor.author Ristau, Detlev
dc.contributor.author Ruehl, Axel
dc.contributor.author Gimmler, Christoph
dc.contributor.author Weller, Horst
dc.date.accessioned 2022-07-12T08:07:22Z
dc.date.available 2022-07-12T08:07:22Z
dc.date.issued 2022
dc.identifier.citation 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
dc.description.abstract 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. eng
dc.language.iso eng
dc.publisher Cambridge : Royal Society of Chemistry
dc.relation.ispartofseries Nanoscale advances (2022), online first
dc.rights CC BY-NC 3.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by-nc/3.0/
dc.subject.ddc 540 | Chemie ger
dc.title Bulk-like emission in the visible spectrum of colloidal LiYF4:Pr nanocrystals downsized to 10 nm
dc.type Article
dc.type Text
dc.relation.essn 2516-0230
dc.relation.doi https://doi.org/10.1039/D2NA00045H
dc.bibliographicCitation.volume 4
dc.bibliographicCitation.firstPage 2973
dc.bibliographicCitation.lastPage 2978
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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