New microarchitectures of (Er,Yb):Lu(2)O(3) nanocrystals embedded in PMMA: synthesis, structural characterization, and luminescent properties

We report the formation of two-dimensional disordered arrays of poly(methyl)methacrylate (PMMA) microcolumns with embedded single size distribution of Lu(0.990)Er(0.520)Yb(0).(490) nanocrystals, (Er,Yb):Lu(2)O(3), using a disordered porous silicon template. The cubic (Er,Yb):Lu(2)O(3) nanocrystals,...

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Detalles Bibliográficos
Autores principales: Galceran, Montserrat, Pujol, Maria Cinta, Carvajal, Joan Josep, Mateos, Xavier, Formentín, Pilar, Pallarès, Josep, Marsal, Lluis Francesc, Park, Kyung Ho, Rotermund, Fabian, Kim, Kihong, Aguiló, Magdalena, Díaz, Francesc
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3847838/
https://www.ncbi.nlm.nih.gov/pubmed/24034270
http://dx.doi.org/10.1186/1556-276X-8-385
Descripción
Sumario:We report the formation of two-dimensional disordered arrays of poly(methyl)methacrylate (PMMA) microcolumns with embedded single size distribution of Lu(0.990)Er(0.520)Yb(0).(490) nanocrystals, (Er,Yb):Lu(2)O(3), using a disordered porous silicon template. The cubic (Er,Yb):Lu(2)O(3) nanocrystals, which crystallize into the cubic system with [Formula: see text] 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) F(9/2) → (4)I(15/2) erbium transition is predominant in these new composites.

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