Time-resolved laser-induced incandescence from multiwalled carbon nanotubes in air

Journal Article · Mon Jan 26 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4907000· OSTI ID:1254731

Mitrani, J. M. ^[1]; Shneider, M. N. ^[2]

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1. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
2. Department of Mechanical Engineering, Princeton University, Princeton, New Jersey 08544, USA

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 effect, 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.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC02-09CH11466
• OSTI ID: 1254731
• Report Number(s): PPPL-5185; APPLAB
• Journal Information: Applied Physics Letters, Vol. 106, Issue 4; ISSN 0003-6951
• Publisher: AIP Publishing
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
Carbon nanotubes
Nanoparticles
Carbon
Heat conduction
Laser testing