Metal and semiconductor nanoparticles stabilized in ultrathin nanofilms and layer structured materials

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The interlamellar space of layer structured materials, such as montmorillonite, kaolinite, graphite oxide can be regarded as a nanophase reactor, in which size-quantized semiconductor and noble metal particles can be prepared. Particle growth is sterically hindered in the interlamellar space between neighbouring lamellae which favors the formation of 2-10 nm particles. These synthesis strategies were successfully applied for the preparation and incorporation of Pd and Ag metal and CdS, ZnO, SnO2 semiconductor nanoparticles. Layer-by-layer self-assembled nanofilms were prepared from aqueous suspensions of semiconductor nanoparticles and various clay mineral suspensions onto glass surface. The nanoparticles adsorb on the surface of the support with their protecting layers allowing the preparation of semiconductor and noble metal nanocomposites by this method. The properties of these nanocomposites (i.e. ZnO/clay, SnO2/clay, CdS/graphite oxide) have been investigated by optical measurements (bandgap energies), X-ray diffraction, small angle X-ray scattering, atomic force and transmission electron microscopy.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages441-455
Number of pages15
Volume5118
DOIs
Publication statusPublished - 2003
EventNonatechnology - Maspalomas, Gran Canaria, Spain
Duration: May 19 2003May 21 2003

Other

OtherNonatechnology
CountrySpain
CityMaspalomas, Gran Canaria
Period5/19/035/21/03

Fingerprint

Semiconductor materials
Nanoparticles
clays
nanoparticles
Precious metals
Clay minerals
Metals
noble metals
metals
Nanocomposites
nanocomposites
Clay
Graphite
graphite
preparation
Oxides
oxides
kaolinite
Kaolinite
metal particles

Keywords

  • Clay mineral
  • Intercalation
  • Nanoparticles
  • SAXS
  • Self-assembled nanofilms
  • TEM
  • XRD

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Metal and semiconductor nanoparticles stabilized in ultrathin nanofilms and layer structured materials. / Dékány, I.; Szabó, T.; Kõrösi, L.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5118 2003. p. 441-455.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dékány, I, Szabó, T & Kõrösi, L 2003, Metal and semiconductor nanoparticles stabilized in ultrathin nanofilms and layer structured materials. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 5118, pp. 441-455, Nonatechnology, Maspalomas, Gran Canaria, Spain, 5/19/03. https://doi.org/10.1117/12.501996
Dékány, I. ; Szabó, T. ; Kõrösi, L. / Metal and semiconductor nanoparticles stabilized in ultrathin nanofilms and layer structured materials. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5118 2003. pp. 441-455
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