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Synthesis of Persistent Luminescent Nanoparticles for Rewritable Displays and Illumination Applications
Published on: September 13, 2024
New microarchitectures of (Er,Yb):Lu2O3 nanocrystals embedded in PMMA: synthesis, structural characterization, and
Montserrat Galceran1, Maria Cinta Pujol, Joan Josep Carvajal
1Física i Cristal lografia de Materials i Nanomaterials (FiCMA-FiCNA)-EMAS, Universitat Rovira i Virgili (URV), Campus Sescelades, c/ Marcel lí Domingo, s/n, Tarragona E-43007, Spain. mariacinta.pujol@urv.cat.
Abstract:
We report the formation of two-dimensional disordered arrays of poly(methyl)methacrylate (PMMA) microcolumns with embedded single size distribution of Lu0.990Er0.520Yb0.490 nanocrystals, (Er,Yb):Lu2O3, using a disordered porous silicon template. The cubic (Er,Yb):Lu2O3 nanocrystals, which crystallize into the cubic system with Ia3¯ space group, were synthesized using the modified Pechini method. Electronic microscopic techniques were used to study the distribution of the nanocrystals in the PMMA columns. Cathodoluminescence was used to observe the visible luminescence of the particles. Red emission attributed to 4 F9/2 → 4I15/2 erbium transition is predominant in these new composites.
