Gold nanoclusters-organometallic polymer nanocomposites: Synthesis and characterization

F. Vitale, L. Mirenghi, E. Piscopiello, G. Pellegrini, E. Trave, G. Mattei, I. Fratoddi, M.V. Russo, L. Tapfer, P. Mazzoldi

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Abstract

The synthesis and characterization of Au nanoparticle-Pt(II)diethynylbiphenyl polymer nanocomposites are reported. Stable dodecanethiol-functionalized Au nanoclusters (2 nm < diameter < 10 nm) were obtained following two colloidal routes: two-phase aqueous/organic and one-phase organic methods. The size, shape and crystalline structure of the nanoparticles were determined by X-ray diffraction and electron microscopy. The hybrid nanocomposite material, obtained by dispersion of Au nanocrystals in the bulk polymer, was investigated by transmission electron microscopy, X-ray photoelectron spectroscopy and photoluminescence spectroscopy. The optical spectroscopy measurements show that the characteristic polymer PL emission at λ = 402 nm is quenched if the nanocomposite is doped with small sized AuNPs (∼ 3 nm), however, if larger AuNPs (∼ 9 nm) are dispersed in the nanocomposite, an enhanced PL emission occurs. © 2006 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)1300 - 1304
Number of pages5
JournalMaterials Science and Engineering C
Volume27
Issue number5-8 SPEC. ISS.
DOIs
Publication statusPublished - Sep 2007
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Vitale, F., Mirenghi, L., Piscopiello, E., Pellegrini, G., Trave, E., Mattei, G., ... Mazzoldi, P. (2007). Gold nanoclusters-organometallic polymer nanocomposites: Synthesis and characterization. Materials Science and Engineering C, 27(5-8 SPEC. ISS.), 1300 - 1304. https://doi.org/10.1016/j.msec.2006.06.041