6533b851fe1ef96bd12a9a39
RESEARCH PRODUCT
Ce:YAG nanoparticles embedded in a PMMA matrix: preparation and characterization
Eugenio CaponettiMaria Luisa SaladinoGiorgio NasilloAlberto SpinellaAntonio ZanottoDelia Francesca Chillura Martinosubject
NanocompositeMaterials scienceNanoparticleSurfaces and InterfacesCe:YAG nanopowders PMMA transparent polymeric composite white LEDs.Condensed Matter Physicschemistry.chemical_compoundPhotopolymerchemistryPolymerizationMethacrylic acidChemical engineeringPolymer chemistryElectrochemistryGeneral Materials ScienceMethyl methacrylateIn situ polymerizationLuminescenceSpectroscopydescription
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, (13)C cross-polarization 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-17 |