Jump to main content
Jump to site search

Issue 18, 2015
Previous Article Next Article

Facile production of stable silicon nanoparticles: laser chemistry coupled to in situ stabilization via room temperature hydrosilylation

Author affiliations

Abstract

Stable, alkyl-terminated, light-emitting silicon nanoparticles have been synthesized in a continuous process by laser pyrolysis of a liquid trialkyl-silane precursor selected as a safer alternative to gas silane (SiH4). Stabilization was achieved by in situ reaction using a liquid collection system instead of the usual solid state filtration. The alkene contained in the collection liquid (1-dodecene) reacted with the newly formed silicon nanoparticles in an unusual room-temperature hydrosilylation process. It was achieved by the presence of fluoride species, also produced during laser pyrolysis from the decomposition of sulfur hexafluoride (SF6) selected as a laser sensitizer. This process directly rendered alkyl-passivated silicon nanoparticles with consistent morphology and size (<3 nm), avoiding the use of costly post-synthetic treatments.

Graphical abstract: Facile production of stable silicon nanoparticles: laser chemistry coupled to in situ stabilization via room temperature hydrosilylation

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Feb 2015, accepted on 03 Apr 2015 and first published on 10 Apr 2015


Article type: Paper
DOI: 10.1039/C5NR01031D
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2015,7, 8566-8573
  •   Request permissions

    Facile production of stable silicon nanoparticles: laser chemistry coupled to in situ stabilization via room temperature hydrosilylation

    A. Malumbres, G. Martínez, J. L. Hueso, J. Gracia, R. Mallada, A. Ibarra and J. Santamaría, Nanoscale, 2015, 7, 8566
    DOI: 10.1039/C5NR01031D

Search articles by author

Spotlight

Advertisements