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Synthesis of High-Density Vertically Aligned Carbon Nanotubes Using Ultrasonic Nebulizer
EcoTopia Science Institute, Nagoya University, Nagoya, Japan
EcoTopia Science Institute, Nagoya University, Nagoya, Japan
Department of Fron- tier Materials, Nagoya Institute of Technology, Nagoya, Japan.
Department of Fron- tier Materials, Nagoya Institute of Technology, Nagoya, Japan.
EcoTopia Science Institute, Nagoya University, Nagoya, Japan
- 1 EcoTopia Science Institute, Nagoya University, Nagoya, Japan
- 2 EcoTopia Science Institute, Nagoya University, Nagoya, Japan
- 3 Department of Fron- tier Materials, Nagoya Institute of Technology, Nagoya, Japan.
- 4 Department of Fron- tier Materials, Nagoya Institute of Technology, Nagoya, Japan.
- 5 EcoTopia Science Institute, Nagoya University, Nagoya, Japan
Materials Sciences and Applications·Volume 03 (2012)·Pages 213–217·Published 18 April 2012·DOI10.4236/msa.2012.34031
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Abstract
Vertically aligned carbon nanotubes (VACNTs) array with high density have been synthesized from a mixture of ferrocene and ethanol using ultrasonic nebulizer techniques. Using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) as well as Raman spectroscopy, investigations reveal that the vertically aligned CNTs are multi-wall CNTs with well-ordered graphene sheets and are about 20 - 50 nm in diameter. We found that high density vertically aligned CNTs can be synthesized at 750℃ - 850℃ and that the length and density of vertically aligned CNTs increase with increasing growth temperatures. In addition, the single-walls CNTs have well-ordered graphene sheet and are about 2 nm in diameter on silicon substrates at 650℃.
KeywordsCarbon NanotubesChemical Vapor DepositionTransmission Electron Microscope
- S. Iijima, “Helical Microtubules of Graphitic Carbon,” Nature, Vol. 354, No. 6348, 1991, pp. 56-58. doi:10.1038/354056a0
- S. Yi, H. Zhang, L. Pei, S. Hu and L. Hu, “The Study of the Electrochemical Properties of CNTs-LaNi5 Elec- trodes,” Materials Science and Engineering B, Vol. 128, No. 1-3, 2006, pp. 125-129. doi:10.1016/j.mseb.2005.11.038
- M. Mann, Y. Zhang, K. B. K. Teo, T. Wells, M. M. El Gomati and W. I. Milne, “Controlling the Growth of Car- bon Nanotubes for Electronic Devices,” Microelectronic Engineering, Vol. 87, No. 5-8, 2010, pp. 1491-1493. doi:10.1016/j.mee.2009.11.072
- S. C. Ray, U. Palnitkar, C. W. Pao, H. M. Tsai, W. F. Pong, I. N. Lin, P. Papakonstantinou, L. C. Chen and K. H. Chen, “Enhancement of Electron Field Emission of Nitrogenated Carbon Nanotubes on Chlorination,” Dia- mond and Related Materials, Vol. 18, No. 2-3, 2009, pp. 457-460. doi:10.1016/j.diamond.2008.07.016
- E. Titus, G. Cabral, J. C. Madaleno, V. F. Neto, T. Shokuhfar, W. J. Blau, P. Ramesh Babu, D. S. Misra and J. Gracio, “Synthesis of Highly Oriented Carbon Nanotube Thin Films by Nickel Functionalisation,” Diamond and Related Materials, Vol. 16, No. 4-7, 2007, pp. 1195- 1199. doi:10.1016/j.diamond.2006.11.033
- N. T. Hong, K. H. Koh, N. T. T. Tam, P. N. Minh, P. H. Khoi and S. Lee, “Combined Model for Growing Mecha- nism of Carbon Nanotubes Using HFCVD: Effect of Temperature and Molecule Gas Diffusion,” Thin Solid Films, Vol. 517, No. 12, 2009, pp. 3562-3565. doi:10.1016/j.tsf.2009.01.066
- W. I. Milne, K. B. K. Teo, M. Chhowalla, G. A. J. Amaratunga, S. B. Lee, D. G. Hasko, H. Ahmed, O. Gro- ening, P. Legagneux, L. Gangloff, J. P. Schnell, G. Pirio, D. Pribat, M. Castignolles, A. Loiseau, V. Semet and V. T. Binh, “Electrical and Field Emission Investigation of Individual Carbon Nanotubes from Plasma Enhanced Chemical Vapour Deposition,” Diamond and Related Ma- terials, Vol. 12, No. 3-7, 2003, pp. 422-428.
- C. Chiu, T. Tsai, N. Tai and C. Lee, “Synthesis of Ultra Long Vertically Aligned Carbon Nanotubes Using the Rapid Heating and Cooling System in the Thermal Chemical Vapor Deposition Process,” Surface and Coatings Tech- nology, Vol. 200, No. 8, 2006, pp. 3215-3219. doi:10.1016/j.surfcoat.2005.07.016
- R. A. Afre, T. Soga, T. Jimbo, M. Kumar, Y. Ando, M. Sharon, P. R. Somani and M. Umno, “Carbon Nanotubes by Spray Pyrolysis of Turpentine Oil at Different Tem- peratures and Their Studies,” Microporous and Mesopor- ous Materials, Vol. 96, No. 1-3, 2006, pp. 184-190. doi:10.1016/j.micromeso.2006.06.036