6533b861fe1ef96bd12c50a5
RESEARCH PRODUCT
Effect of surface impurities on downconversion luminescence of Pr3+, Yb3+ activated SrF2 nanoparticles
Maciej PtakAdolfo SpeghiniDariusz HreniakMaria Luisa SaladinoKarina GrzeszkiewiczGiacomo Lucchinisubject
Materials scienceNanoparticle02 engineering and technology010402 general chemistryPhotochemistryDownconversion01 natural sciencesHydrothermal circulationInorganic Chemistrychemistry.chemical_compoundImpurityNear infrared spectraCarboxylateElectrical and Electronic EngineeringPhysical and Theoretical ChemistrySpectroscopyQuenching (fluorescence)Organic ChemistryStrontium fluoride021001 nanoscience & nanotechnologyAtomic and Molecular Physics and OpticsStrontium fluoride0104 chemical sciencesElectronic Optical and Magnetic MaterialschemistryNanoparticles0210 nano-technologyLuminescencedescription
Abstract Pr3+,Yb3+ activated SrF2 nanoparticles synthesized by low-temperature hydrothermal method were studied. The composition and size of nanoparticles were intentionally changed by controlling synthesis conditions. After structural and morphological characterization, the spectroscopic properties of the nanoparticles were analyzed in the visible and near infrared spectra ranges. The results show correlation between the gradual change of the amount of carboxylate and hydroxyl moieties on the nanoparticle surface, varied by the size nanoparticles and the quenching of the luminescence. The size-related amount of surface quenchers is strongly connected to the decrease of the downconversion efficiency.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-09-01 |