Time-resolved laser-induced incandescence from multiwalled carbon nanotubes in air
Authors: J.M. Mitrani and M.N. Shneider
Abstract: We observed temporal laser-induced
incandescence (LII) signals from multiwalled carbon nanotubes
(MWCNTs) suspended in ambient air. Unlike previous LII experiments
with soot particles, which showed that primary particles with
larger diameters cool at slower timescales relative to smaller
particles, we observed that thicker MWCNTs with larger outer
diameters (ODs) cool at faster timescales relative to thinner
MWCNTs with smaller ODs. We suggested a simple explanation of this
eff ect, based on the solution of one-dimensional nonstationary
heat conduction equation for the initial non-uniform heating of
MWCNTs with ODs greater than the skin depth.
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Submitted to: Applied Physics Letters
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Download PPPL-5185 (pdf 2.4 MB 13 pp)
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