Paper Title:
Size and Surface Control of Optical Properties in Silicon Nanoparticles
  Abstract

Si-nanoparticles (NP) are attracting steadily growing interest due to their intriguing sizedependent optical properties. The most challenging task in preparing Si-NP is to succeed in controlling the particle size and size distribution and the surface properties. To this respect, the method of laser synthesis of Si-NP from gas phase reactants appears as an ideal tool, being a very versatile and controllable synthesis technique, but the collected Si-NP are strongly agglomerated. Here we report on attempts to decrease the agglomeration of the Si NP by following two complementary strategies: - investigation and control of nanoparticle formation and growth during the synthesis process; - dispersion of the agglomerates and termination of the particle surfaces by controlled chemical etching followed by surface passivation and stabilization treatments. The properties of as-prepared and processed Si NP will be presented and discussed.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
2620-2626
DOI
10.4028/www.scientific.net/AST.45.2620
Citation
F. Fabbri, E. Borsella, M. Carpanese, R. Fantoni, R. Caterino, R. D'Amato, M. Falconieri, E. Serra, "Size and Surface Control of Optical Properties in Silicon Nanoparticles", Advances in Science and Technology, Vol. 45, pp. 2620-2626, 2006
Online since
October 2006
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