Nanotubes electric effects

Lim, X H., Phiboolsirichit, N., Mubeen, S., Rheem, Y., Deshusses, M. A., Mulchandani, A. and Myung, N. V. (2010), Electrical and sensing properties of single-walled carbon nanotubes network effect of alignment and selective breakdown . 

Dumitrescu, L, Wilson, N. R., and Maepherson, J. V. 2007. Functionalizing single-walled carbon nanotube networks Effect on electrical and electrochemical properties. J. Phys. Chem. C 111 12944-12953. 

Early transport measurements on individual multi-wall nanotubes [187] were carried out on nanotubes with too large an outer diameter to be sensitive to ID quantum effects. Furthermore, contributions from the inner constituent shells which may not make electrical contact with the current source complicate the interpretation of the transport results, and in some cases the measurements were not made at low enough temperatures to be sensitive to 1D effects. Early transport measurements on multiple ropes (arrays) of single-wall armchair carbon nanotubes [188], addressed general issues such as the temperature dependence of the resistivity of nanotube bundles, each containing many single-wall nanotubes with a distribution of diameters d/ and chiral angles 6. Their results confirmed the theoretical prediction that many of the individual nanotubes are metallic. 

The discovery of nanotubes and other nanostructures has opened up an exciting new field of research. But just what other shapes are possible and what other materials will form nanotubes To find out, we will need to predict the effect of different configurations. There are also many experimental problems to be solved. For example, how would you form an electrical connection to a nanotube Methods for synthesizing the large amounts of nanotubes needed in large-scale applications of nanotube assemblies also need to be developed. 

V. Skakalova, A. B. Kaiser, U. Dettlaff-Weglikowska, K. Hrncarikova, S. Roth, Effect of chemical treatment on electrical conductivity, infrared absorption, and Raman spectra of single-walled carbon nanotubes, J. Phys. Chem. B, vol. 109, pp. 7174-7181, 2005. 

Ley, Y. W. Park, S. Berber, D. Tomanek, S. Roth, Effect of SOC12 treatment on electrical and mechanical properties of single-wall carbon nanotube networks, J. Am. Chem. Soc., vol. 127, pp. 5125-5131, 2005. 

R. H. Schmidt, I. A. Kinloch, A. N. Burgess, A. H. Windle, The effect of aggregation on the electrical conductivity of spin-coated polymer/carbon nanotube composite films, Langmuir, vol. 23, pp. 5707-5712, 2007. 

Taking into consideration that only the inner wall surface of carbon nanotubes is exposed to atmosphere in the stage of carbon-deposited alumina film, it would be possible to modify only the inner surface if the carbon-deposited alumina film is chemically treated. On the basis of this concept, Hattori et al. tried to fluorinate only the inner surface of carbon nanotubes (42). It is well known that fluorination is quite an effective way to introduce strong hydrophobicity to carbonaceous materials, and it perturbs the carbon it electron system (43,44). Thus, by the selective fluorination of nanotube s inner surface, it would be possible to produce carbon nanotubes whose inner surface is highly hydrophobic and electrically insulating while their outer... 

Methods to electrically wire redox proteins with electrodes by the reconstitution of apo-proteins on relay-cofactor units were discussed. Similarly, the application of conductive nanoelements, such as metallic nanoparticles or carbon nanotubes, provided an effective means to communicate the redox centers of proteins with electrodes, and to electrically activate their biocatalytic functions. These fundamental paradigms for the electrical contact of redox enzymes with electrodes were used to develop amperometric sensors and biofuel cells as bioelectronic devices. 

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