Origin of luminescence from PMMA functionalized nanoparticles

A new method is used to prepare poly (methyl methacrylate), PMMA, modified nanoparticles (anatase, γ-Al 2O 3, SiO 2, and ZnO). The nanoparticles are coated with a layer of polymethyl methacrylate by γ or electron radiation. The properties of the modified nanoparticles have been investigated using Fo...

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Bibliographic Details
Published inPhysics letters. A Vol. 350; no. 3; pp. 252 - 257
Main Authors Wang, Z.G., Zu, X.T., Zhu, S., Xiang, X., Fang, L.M., Wang, L.M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 06.02.2006
Subjects
Nanoparticles
Photoluminescence
Radiation
Surface modification
61.46.+w
Nanoparticles
78.55.-m
Surface modification
Photoluminescence
Radiation
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Summary:A new method is used to prepare poly (methyl methacrylate), PMMA, modified nanoparticles (anatase, γ-Al 2O 3, SiO 2, and ZnO). The nanoparticles are coated with a layer of polymethyl methacrylate by γ or electron radiation. The properties of the modified nanoparticles have been investigated using Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and photoluminescence (PL). A blue luminescence peak can be observed for the PMMA modified nanoparticles. Annealing in air atmosphere destroys the carboxylate bonds and induces the decrease of luminescence density.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2005.10.035