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Abstract Nd3+/Yb3+ co-doped NaGdF4@CaF2:Eu3+ nanoparticles were prepared through oleic acid/1-octadecene based coprecipitation method. Their structural characterizations were carried out by using powdered XRD pattern, SEM and TEM studies. The synthesized… Click to show full abstract
Abstract Nd3+/Yb3+ co-doped NaGdF4@CaF2:Eu3+ nanoparticles were prepared through oleic acid/1-octadecene based coprecipitation method. Their structural characterizations were carried out by using powdered XRD pattern, SEM and TEM studies. The synthesized nanoparticles showed dual-mode emission i.e., visible and NIR emission and thus displayed a broad range of photoluminescence emission covering a visible red emission (618 nm) to near infrared first/second window emission (900, 990, 1062 and 1340 nm). Photoluminescence spectral studies showed highest emission intensity for NaGdF4:0.1Nd3+,0.03Yb3+@CaF2:Eu3+. The color coordinates (x, y) for the visible emission of synthesized nanoparticles were calculated and the proposed energy transfer mechanism for NaGdF4:0.1Nd3+,xYb3+@CaF2:Eu3+ nanoparticles was explained.
Journal Title: Journal of Solid State Chemistry
Year Published: 2021
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