Journal of Nanoparticle Research

, 15:1878

Direct gas-phase synthesis of single-phase β-FeSi2 nanoparticles

  • Robert Bywalez
  • Hans Orthner
  • Ervin Mehmedovic
  • Robert Imlau
  • Andras Kovacs
  • Martina Luysberg
  • Hartmut Wiggers
Research Paper
  • 344 Downloads

Abstract

For the first time, phase-pure β-FeSi2 nanoparticles were successfully produced by gas-phase synthesis. We present a method to fabricate larger quantities of semiconducting β-FeSi2 nanoparticles, with crystallite sizes between 10 and 30 nm, for solar and thermoelectric applications utilizing a hot-wall reactor. A general outline for the production of those particles by thermal decomposition of silane and iron pentacarbonyl is provided based on kinetic data. The synthesized particles are investigated by X-ray diffraction and transmission electron microscopy, providing evidence that the as-prepared materials are indeed β-FeSi2, while revealing morphological characteristics inherent to the nanoparticles created.

Keywords

Gas-phase synthesis Nanoparticles β-iron disilicide Semiconductor 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Robert Bywalez
    • 1
  • Hans Orthner
    • 1
  • Ervin Mehmedovic
    • 1
  • Robert Imlau
    • 2
  • Andras Kovacs
    • 2
  • Martina Luysberg
    • 2
  • Hartmut Wiggers
    • 1
    • 3
  1. 1.IVG, Institute for Combustion and Gas Dynamics – Reactive FluidsUniversity of Duisburg-EssenDuisburgGermany
  2. 2.Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons and Peter Grünberg Institute 5Forschungszentrum JülichJülichGermany
  3. 3.CENIDE, Center for Nanointegration Duisburg-EssenDuisburgGermany

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