A Ce:YAG-poly(methyl methacrylate) composite was prepared using in situ polymerization by embedding the Ce: YAG nanopowder in a blend of methyl methacrylate (MMA) and 2-methacrylic acid (MAA) monomers and activating the photopolymerization using a radical initiator. The obtained nanocomposite was yellow and transparent. Its characterization was performed using transmission electron microscopy, small angle X-ray scattering, 13C crosspolarization magic-angle spinning nuclear magnetic resonance, and photoluminescence spectroscopy. Results showed that Ce:YAG nanoparticles are well dispersed in the polymeric matrix whose structure is organized in a lamellar shape. The luminescence properties of the nanocomposite do not show quenching or a significant spectral shift, indicating that the nanocomposite can be useful for advanced applications such as white LED construction.
Saladino, M.L., Zanotto, A., Chillura Martino, D.F., Spinella, A., Nasillo, G., Caponetti, E. (2010). Ce:YAG nanoparticles embedded in a PMMA matrix: preparation and characterization. LANGMUIR, 26(16), 13442-13449 [DOI: 10.1021/la9042809].
Ce:YAG nanoparticles embedded in a PMMA matrix: preparation and characterization
SALADINO, Maria Luisa;ZANOTTO, Antonio;CHILLURA MARTINO, Delia Francesca;SPINELLA, Alberto;NASILLO, Giorgio;CAPONETTI, Eugenio
2010-01-01
Abstract
A Ce:YAG-poly(methyl methacrylate) composite was prepared using in situ polymerization by embedding the Ce: YAG nanopowder in a blend of methyl methacrylate (MMA) and 2-methacrylic acid (MAA) monomers and activating the photopolymerization using a radical initiator. The obtained nanocomposite was yellow and transparent. Its characterization was performed using transmission electron microscopy, small angle X-ray scattering, 13C crosspolarization magic-angle spinning nuclear magnetic resonance, and photoluminescence spectroscopy. Results showed that Ce:YAG nanoparticles are well dispersed in the polymeric matrix whose structure is organized in a lamellar shape. The luminescence properties of the nanocomposite do not show quenching or a significant spectral shift, indicating that the nanocomposite can be useful for advanced applications such as white LED construction.
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