Carbon nanotubes, singlewalled

Fig. 23. Experimental room temperature Raman spectrum from a sample consisting primarily of bundles or ropes of single-wall nanotubes with diameters near that of the (10,10) nanotube. The excitation laser wavelength is 514.5 nm. The inset shows the lineshape analysis of the vibrational modes near 1580 cm . SWNT refers to singlewall carbon nanotubes [195].

K.B. Shelimov, R.O. Esenaliev, A.G. Rinzler, C.B. Huffman, and R.E. Smalley, Purification of singlewall carbon nanotubes by ultrasonically assisted filtration. Chem. Phys. Lett. 282, 429—434 (1998). 

Kim OK, Je JT, Baldwin JW, Kooi S, Pehrsson PE, Buckley LJ (2003) Solubilization of singlewall carbon nanotubes by supramolecular encapsulation of helical amylose. J. Am. Chem. Soc. 125 4426 f427. 

Moon JM, An KH, Lee YH, Park YS et al (2001) High-yield purification process of singlewalled carbon nanotubes. J Phys Chem B 105(24) 5677-5681... 

Lam, C. W, James, J. T., McCluskey, R., and Hunter, R. L. (2004). Pulmonary toxicity of singlewall carbon nanotubes in mice 7 and 90 days after intratracheal instillation. Toxicol Sci 11, 126-134. 

Much work has been invested in AFM tips in order to improve resolution further. Singlewall carbon nanotubes offer higher resolution than conventional tips as they combine extremely small size with low adhesion to the sample surface. They also buckle rather than break when put under stress and are very durable. Flowever, one hurdle to their use is the expense and difficulty involved in fabricating them, which has made their manufacture a new area of research ". ... 

The kinetic Boltzmann equation was solved to describe the non-stationary electron-phonon transport in armchair single-wall carbon nanotubes. The equation was solved numerically by using the finite difference approach. The current in the armchair singlewall carbon nanotubes was calculated. 

Ham HT, Choi YS, Chee MG, et al. (2006) Singlewall carbon nanotubes covered with polystyrene nanopairides by in-situ miniemulsion polymerization. J Polym Sd Part A Polym Chem 44 573-584... 

CNTs are considered to be ideal candidates for a wide range of apvplications in materials science because of their exceptional mechanical, thermal, and electronic properties (Baughman Zakhidov, 2002). Carbon nanotubes exist as two types of structures singlewall carbon nanotubes (SWNTs) and multiwall carbon nanotubes (MWNTs). Fig. 1 shows the schematic pictures of different types of carbon nanotubes. SWNT can be considered as graphene sheet rolled cylinders of covalently bonded carbon atoms with very high aspect ratios of 1000 or more. MWNTs consist of a number of graphene cylinders concentrically nested like rings in a tree trunk with an interlayer distance of -0.34 nm. 

Valentini, L., Biagiotti, J., Kenny, J. M., Lopez Manchado, M. A. Physical and mechanical behavior of singlewalled carbon nanotube/polypropylene/ethylene-propylene-diene rab-ber nanocomposites. J Appl Polym Sci., 89,2657-63 (2003). 

---