A novel technique for the preparation of metal clusters in dielectric matrices

Abstract

Metal clusters trapped in solid‐state matrices can be produced in various wayas. The new method presented here relies on the simultaneous plasma polymerization of a vinyltrimethylsilane monomer and deposition of metal clusters (e.g., Au, Ag, Pd) by an inert gas evaporation technique. The characterization by TEM, XPS, and UV‐vis and FTIR spectroscopy of amonorphous plasma‐polymer films containing gold clusters is described, which revelas that the clusters areunigorm in size and crystalline.

Metal clusters in plasma polymer matrices. Part III. Optical properties and redox behaviour of Cu clusters

“…detail in ref. 10. The preparation technique at present does not allow an independent control of the mean diameter of the clusters and the volume fraction f of the metal in the composite Ðlms, i.e., an increase of the size of the clusters leads, in general, to an increase of the volume fraction.…”

Metal Clusters in Plasma Polymer Matrixes: Gold Clusters

“…The experimental method used was described in detail in a previous paper. 13 For the characterization of the metal cluster/plasma polymer composites, high-resolution transmission electron microscopy (HRTEM), electron diffraction (ED), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, and UV-vis spectrophotometry were used. For the characterization with different methods the material was deposited on NaCl (TEM, ED), PEEK foils (XPS), thick aluminum films on glass (FTIR), and quartz plates (UV-vis spectrophotometry).…”

Polymer Films with Embedded Metal Nanoparticles

“…• tetrafluorocarbon CF4 with embedded Au nanoparticles [299,300], • butane C4HlO with embedded Au, Ag, Cu or Pd nanoparticles [231,301,302]' • butyl C4H6 with embedded Ag or Te nanoparticles [303], • benzene C6H6 with embedded Ag, Au, Sn or In nanoparticles [265,]' • benzene C6H6 with embedded Ge or Ho [309,325], • styrene C6H5CH=CH2 with embedded Au [245], Au [265], In [319,326] and Te [327] nanoparticles, • chlorobenzene C6H5CI with embedded Ag nanoparticles [311,328]' • thiophene C4H4S with Ag nanoparticles • hexamethyldisilazane (CH3 )JSiNHSi(CH3 )J or hexamethyldisiloxane (CH3 )JSiOSi(CH3 )J with embedded Ag [304,310,[329][330][331][332][333][334][335] Cu [336,337] or Sn [336] nanoparticles , • vinyltrimethylsilane H2C=CHSi(CH3 )J with embedded Au [338,339] or Ag [340] nanoparticles • tetraethoxysilane with embedded Ag nanoparticles [338,340] • polyvinylcarbazole (sublimated into the plasma discharge) with embedded Au [341], • triallylphosphine with Ni [225], • carbon disulfide CS2 with embedded Te or Bi [327].…”