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- Title
CHARACTERIZATION OF SINGLE WALL CARBON NANOTUBES SYNTHESIZED BY KrF EXCIMER LASER ABLATION IN NITROGEN ATMOSPHERE.
- Authors
AL-ZANGANAWEE, J.; MOISE, C.; KATONA, A.; BOJIN, D.; ENACHESCU, M.
- Abstract
We report the fabrication of single wall carbon nanotubes (SWCNTs) by KrF excimer laser ablation under nitrogen atmosphere with a yield of over 70%. We used for the ablation process KrF excimer laser with a 20 ns pulse period and 30 Hz repetition rate, oven temperature 1100 °C, target composition: 0.6 at% Ni, 0.6 at% Co, 98.8 at% C (atomic percentage), 300 L/h nitrogen gas flow rate and a pressure of 500 Torr. Raman spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA) measurement results showed that the produced nanotubes have high length, narrow diameter distribution and contain low amount of amorphous carbon and metal catalyst particles.
- Subjects
SINGLE walled carbon nanotubes; EXCIMER laser research; LASER ablation; RAMAN spectroscopy; TRANSMISSION electron microscopy; SCANNING electron microscopy; THERMOGRAVIMETRY
- Publication
Digest Journal of Nanomaterials & Biostructures (DJNB), 2015, Vol 10, Issue 4, p1119
- ISSN
1842-3582
- Publication type
Article