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On-line Monitoring of Nanoparticle Synthesis by Laser-Induced Breakdown Spectroscopy in Vacuum

Published online by Cambridge University Press:  19 December 2016

Jessica Picard ,
Jean-Baptiste Sirven  and
Olivier Sublemontier
Jessica Picard
Affiliation:
NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, F-91191 Gif sur Yvette cedex, France
Jean-Baptiste Sirven
Affiliation:
DEN – Service d’Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, F-91191, Gif sur Yvette cedex, France
Olivier Sublemontier*
Affiliation:
NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay, F-91191 Gif sur Yvette cedex, France
*
*(Email: olivier.sublemontier@cea.fr)
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Abstract

We propose a new technique suitable for on-line monitoring of gas phase synthesis of nanoparticles. It is based on aerodynamic focusing of nanoparticles followed by Laser-Induced Breakdown Spectroscopy (LIBS) under vacuum. The laser crosses a beam of particles at low pressure so that the plasma-produced photons to be analyzed are emitted only from the particles. Unlike previous experiments, the background from interaction with the gaseous component is totally eliminated from the collected spectra. Vacuum allows also for easier spectra collection in the UV range. Moreover, as the nanoparticle beam is highly collimated, the optical interface windows are not obstructed by particle deposition and the system can be kept running for hours.

Keywords

nanoscalelaser-induced reactionparticulate
Type
Articles
Information
MRS Advances , Volume 2 , Issue 28: Nanomaterials , 2017 , pp. 1487 - 1491
Copyright
Copyright © Materials Research Society 2016 

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References

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