Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 116, Issue 3, Pages 623-636Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00340-013-5745-2
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Funding
- Natural Science and Engineering Council of Canada (NSERC)
- Deutsche Forschungsgemeinschaft (DFG)
- Government of Ontario
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This paper describes the application of time-resolved laser-induced incandescence (TiRe-LII), a combustion diagnostic used mainly for measuring soot primary particles, to size silicon nanoparticles formed within a plasma reactor. Inferring nanoparticle sizes from TiRe-LII data requires knowledge of the heat transfer through which the laser-heated nanoparticles equilibrate with their surroundings. Models of the free molecular conduction and evaporation are derived, including a thermal accommodation coefficient found through molecular dynamics. The model is used to analyze TiRe-LII measurements made on silicon nanoparticles synthesized in a low-pressure plasma reactor containing argon and hydrogen. Nanoparticle sizes inferred from the TiRe-LII data agree with the results of a Brunauer-Emmett-Teller analysis.
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