a Department of Mathematics and Physics, Guangdong University of Technology, Guangzhou 510090, China; b Institute of Quantum Electronics, South China Normal University, Guangzhou 510631, China; c Department of Physics, Zhongshan University, Guangzhou 510275, China
Abstract First- and second-order Raman spectra of carbon nanotubes produced in helium and argon atmospheres at a pressure ranging from 11 to 92 kPa by arc discharge have been measured and compared with each other. The position and bandwidth of the spectral lines depend on the kind of inert gases and their pressure. The Raman spectra of the nanotubes produced in argon gas atmosphere are much more similar to that of polycrystalline graphite than those of the nanotubes produced in helium gas atmosphere. The position and bandwidth of nanotube Raman peaks change with gas pressure in arc discharge because different diameter distribution of nanotubes is produced at different inert gas pressure. The Raman spectra of nanotubes produced at high pressure is much more like that of graphite than those produced in lower pressure
Received: 04 September 1999
Accepted manuscript online:
Fund: Project supported by the Natural Science Foundation of Guangdong Province, China (Grant Nos. 960097 and 980419) and the Guangdong Provincial Postdoctoral Foundation.
Cite this article:
Zhang Hai-yan (张海燕), Chen Jian (陈建), Liu Song-hao (刘颂豪), Chen Di-hu (陈第虎), Wu Chun-yan (伍春燕), He Yan-yang (何艳阳), Liang Li-zheng (梁礼正), Peng Shao-qi (彭少麒) THE RAMAN SCATTERING OF CARBON NANOTUBES PRODUCED IN DIFFERENT INERT GASES AND THEIR PRESSURES BY ARC DISCHARGE 2000 Chinese Physics 9 375
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