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Antimony-doped tin oxide nanoparticles for conductive polymer nanocomposites

Published online by Cambridge University Press:  31 January 2011

W.E. Kleinjan ,
J.C.M. Brokken-Zijp ,
R. van de Belt ,
Z. Chen  and
G. de With
W.E. Kleinjan
Affiliation:
Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
J.C.M. Brokken-Zijp*
Affiliation:
Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
R. van de Belt
Affiliation:
Kriya Materials B.V., Geleen, The Netherlands
Z. Chen
Affiliation:
Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
G. de With
Affiliation:
Laboratory of Materials and Interface Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Nanoparticles of antimony-doped tin oxide (ATO) were characterized for 0–33.3% Sb doping, both in aqueous dispersion and as dried powder. Antimony is incorporated in the cassiterite SnO2 structure of the ATO nanoparticles (d ≈ 7 nm) up to the highest doping levels, mainly as SbV, but with increasing Sb doping the SbIII content increases. We found adsorption of NH3 at the particle surface and evidence for the incorporation of nitrogen in the crystal lattice of the particles. The total nitrogen content increases with increasing Sb doping of the particles. Compact powder conductivity measurements show an increase in conductivity of ATO powder up to 13% Sb and a small decrease for higher Sb contents. Furthermore, we show that these particles can be used to prepare highly transparent conductive cross-linked ATO/acrylate nanocomposites with a continuous fractal particle network through the polymer matrix and a very low percolation threshold (ϕc ≈ 0.3 vol%).

Keywords

CompositePolymerNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 3 , March 2008 , pp. 869 - 880
Copyright
Copyright © Materials Research Society 2008

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References

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