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Proceedings Article

NIR and UV spectroscopic techniques as tools to control nanoparticle growth in laser pyrolysis process

[+] Author Affiliations
Roberta Fantoni, Luigi De Dominicis, Stefano Martelli, Mario Di Fino, Mariano Carpanese, Vladimir Koutniak, F. Fabbri

Ente per le Nuove tecnologie l'Energie e l'Ambiente (Italy)

Proc. SPIE 4578, Fiber Optic Sensor Technology and Applications 2001, 165 (February 18, 2002); doi:10.1117/12.456067
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From Conference Volume 4578

  • Fiber Optic Sensor Technology and Applications 2001
  • Michael A. Marcus; Brian Culshaw
  • Boston, MA | October 28, 2001

abstract

Due to the foreseen possibility of technological applications, there is an increasing interest in nanocrystalline soft materials, especially in iron silicon alloys. The synthesis of nanoparticles by means of CO2 laser induced pyrolisys is an important method for the production of the latter material with high purity upon well controlled conditions. In this production process, implying fast ultrafine powders condensation from the gas phase, the temperature is a key parameter, since the particles size is strongly affected by its variations. The potentialities of laser spectroscopic methods in the ultraviolet and infrared spectral region to monitor nanoparticles growth in a semi-industrial flow reactor for production of Si and FeSi nanoparticles and operating in ENEA, are explored in the present work.

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Citation

Roberta Fantoni ; Luigi De Dominicis ; Stefano Martelli ; Mario Di Fino ; Mariano Carpanese, et al.
"NIR and UV spectroscopic techniques as tools to control nanoparticle growth in laser pyrolysis process", Proc. SPIE 4578, Fiber Optic Sensor Technology and Applications 2001, 165 (February 18, 2002); doi:10.1117/12.456067; http://dx.doi.org/10.1117/12.456067


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