Shehata, NaderMeehan, KathleenHassounah, IbrahimHudait, Mantu K.Jain, NikhilClavel, Michael B.Elhelw, SarahMadi, Nabil2017-02-112017-02-112014-05-13Nanoscale Research Letters. 2014 May 13;9(1):2311556-276Xhttp://hdl.handle.net/10919/74994This paper introduces a new synthesis procedure to form erbium-doped ceria nanoparticles (EDC NPs) that can act as an optical medium for both up-conversion and down-conversion in the same time. This synthesis process results qualitatively in a high concentration of Ce3+ ions required to obtain high fluorescence efficiency in the down-conversion process. Simultaneously, the synthesized nanoparticles contain the molecular energy levels of erbium that are required for up-conversion. Therefore, the synthesized EDC NPs can emit visible light when excited with either UV or IR photons. This opens new opportunities for applications where emission of light via both up- and down-conversions from a single nanomaterial is desired such as solar cells and bio-imaging.? - ? (6) page(s)application/pdfenCreative Commons Attribution 4.0 InternationalTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedScience & Technology - Other TopicsMaterials SciencePhysicsCeria nanoparticlesErbium dopantFluorescenceUp-conversionDISSOLVED-OXYGENSOLAR-CELLSSENSORSArticle - RefereedNader Shehata et al.; licensee BioMed Central Ltd.https://doi.org/10.1186/1556-276X-9-2319