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Title: Quantitative imaging of carbon dimer precursor for nanomaterial synthesis in the carbon arc

Journal Article · · Plasma Sources Science and Technology

Delineating the dominant processes responsible for nanomaterial synthesis in a plasma environment requires measurements of the precursor species contributing to the growth of nanostructures. Here, we performed comprehensive measurements of spatial and temporal profiles of carbon dimers (C2) in sub-atmospheric-pressure carbon arc by laser-induced fluorescence. Measured spatial profiles of C2 coincide with the growth region of carbon nanotubes (Fang et al 2016 Carbon 107 273–80) and vary depending on the arc operation mode, which is determined by the discharge current and the ablation rate of the graphite anode. The C2 density profile exhibits large spatial and time variations due to motion of the arc core. A comparison of the experimental data with the 2D simulation results of self-consistent arc modeling shows good agreement. The model predicts well the main processes determining spatial profiles of carbon dimers (C2).

Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1432195
Journal Information:
Plasma Sources Science and Technology, Vol. 27, Issue 2; ISSN 1361-6595
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (7)

Root-growth of boron nitride nanotubes: experiments and ab initio simulations journal January 2018
Determining the gas composition for the growth of BNNTs using a thermodynamic approach journal January 2019
Multispecies plasma fluid simulation for carbon arc discharge journal January 2019
In situ diagnostics for nanomaterial synthesis in carbon arc plasma journal August 2018
Growth of nanoparticles in dynamic plasma journal June 2019
Quantitative imaging of carbon dimer precursor for nanomaterial synthesis in the carbon arc dataset January 2018
Synthesis of nanoparticles in carbon arc: measurements and modeling journal May 2018