AVS 46th International Symposium
    Topical Conference on Emerging Opportunities and Issues in Nanotubes and Nanoelectronics Wednesday Sessions
       Session NT+NS+EM+MS-WeA

Paper NT+NS+EM+MS-WeA4
Plume Diagnostics During Carbon Nanotube Production by Laser Ablation

Wednesday, October 27, 1999, 3:00 pm, Room 6C

Session: Nanotubes: Growth, Characterization and Properties I
Presenter: S. Arepalli, G. B. Tech./Lockheed Martin
Authors: S. Arepalli, G. B. Tech./Lockheed Martin
C.D. Scott, NASA/Johnson Space Center
Correspondent: Click to Email
We report recent results of our plume diagnostics during carbon nanotube production by double pulse laser oven method. The evolution characteristics of different species in the plume from different regions of the laser ablated plume will be presented. Transient emission data is compared with plume images to formulate dynamics of plume expansion. Vibrational and rotational temperatures of C@sub 2@ and C@sub 3@ are estimated by comparison with computations. Excitation spectra of LIF are used to deduce ground state temperatures and populations.