CHARACTERIZATION OF SINGLE WALL CARBON NANOTUBES SYNTHESIZED BY KrF EXCIMER LASER ABLATION IN NITROGEN ATMOSPHERE

被引:0
作者
Al-Zanganawee, J. [1 ,2 ]
Moise, C. [1 ]
Katona, A. [1 ]
Bojin, D. [1 ]
Enachescu, M. [1 ]
机构
[1] Univ Politehn Bucuresti, Ctr Surface Sci & Nanotechnol CSSNT, Bucharest, Romania
[2] Univ Diyala, Phys Dept, Coll Sci, Baqubah, Iraq
关键词
Single wall carbon nanotube; Excimer laser ablation; Nitrogen gas; Raman micro-Spectroscopy; TEM; SEM; TGA;
D O I
暂无
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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 degrees 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.
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收藏
页码:1119 / 1127
页数:9
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