Dissolution of Full-Length Single-Walled Carbon Nanotubes

Chen, Jian; Rao, Apparao M.; Lyuksyutov, Sergei F.; Itkis, Mikhail E.; Hamon, Mark A.; Hu, Hui; Cohn, Robert W.; Eklund, P. C.; Colbert, Daniel T.; Smalley, and Richard E.; Haddon, Robert C.

doi:10.1021/jp002596i

Cited by 561 publications

(438 citation statements)

References 31 publications

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“…: 32 h) to assess the effect on the SWCNT C yield. Acid treatment has also been shown to shorten the length of the CNTs (Chen et al, 2001;Liu et al, 1998) and to form carbonaceous impurities (Hu et al, 2003).…”

Section: Carbon Yieldmentioning

confidence: 99%

The feasibility of isolation and detection of fullerenes and carbon nanotubes using the benzene polycarboxylic acid method

Ziolkowski

Druffel

2009

Marine Pollution Bulletin

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Section: Carbon Yieldmentioning

confidence: 99%

The feasibility of isolation and detection of fullerenes and carbon nanotubes using the benzene polycarboxylic acid method

Ziolkowski

Druffel

2009

Marine Pollution Bulletin

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“…A 3:1 concentrated H2SO4:HNO3 mixture is commonly used for surface modification. (Chen, Hamon et al 1998;Chen, Rao et al 2001) After such acid treatment, nanofibers form relatively stable colloidal solutions in water. Dispersions have been characterized by atomic force microscopy (AFM), UV/visible-NIR spectra etc.…”

Section: Morphology and Dispersion Of Pristine And Modified Carbon Namentioning

confidence: 99%

Morphology and Dispersion of Pristine and Modified Carbon Nanofibers in Water

Zhao¹

2010

Nanofibers

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“…The ability to prepare aligned and controlled density arrays from different NWs should open up a number of opportunities for basic research and applications, given the distinct chemical and functional properties available from NW building blocks 1,16 . In addition, we modified singlewalled NTs (SWNTs) and multiwalled NTs (MWNTs) with n-octadecylamine 17 and used the resulting suspensions to prepare BBFs (see Methods). The transferred SWNT-and MWNT-BBFs ( Fig.…”

Section: Other Nanowire and Carbon Nanotube Bbfsmentioning

confidence: 99%

Nanowires and Carbon Nanotubes

Liu

2006

Scanning Microscopy for Nanotechnology

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Many of the applications proposed for nanowires and carbon nanotubes require these components to be organized over large areas with controlled orientation and density. Although progress has been made with directed assembly and LangmuirBlodgett approaches, it is unclear whether these techniques can be scaled to large wafers and non-rigid substrates. Here, we describe a general and scalable approach for large-area, uniformly aligned and controlled-density nanowire and nanotube films, which involves expanding a bubble from a homogeneous suspension of these materials. The blown-bubble films were transferred to single-crystal wafers of at least 200 mm in diameter, flexible plastics sheets of dimensions of at least 225 3 300 mm 2 and highly curved surfaces, and were also suspended across open frames. In addition, electrical measurements show that large arrays of nanowire field-effect transistors can be efficiently fabricated on the wafer scale. Given the potential of blown film extrusion to produce continuous films with widths exceeding 1 m, we believe that our approach could allow the unique properties of nanowires and nanotubes to be exploited in applications requiring large areas and relatively modest device densities.Semiconductor nanowires (NWs) and carbon nanotubes (NTs) exhibit physical properties that make them attractive building blocks for many electronic and optical applications [1][2][3] . To realize such applications, researchers have directed considerable effort to the development of methods of assembly that might ultimately lead to integrated systems. For example, there have been studies of individual or small numbers of NW and NT devices prepared by random deposition, electric field directed assembly 4 , flowassisted alignment 5 , and selective chemical and biological patterning 6,7 , and up to centimetre-scale assembly of NWs using the Langmuir-Blodgett technique 8 . However, it is still unclear whether these methods can be extended to large-scale assembly of NWs and NTs on both rigid and flexible substrates with controlled alignment and density.Blown film extrusion is a well-developed process for the manufacture of plastic films in large quantities, which involves extruding a molten polymer and inflating it to obtain a balloon, which can be collapsed and slit to form continuous flat films with widths exceeding 1 m at rates in the order of 500 kg h 21 (refs. 9 -11). We have applied this basic idea for the first time to the formation of nanocomposite films where the density and orientation of the NWs and NTs are controlled within the film. The basic steps in our approach (Fig. 1a) consist of (i) preparation of a homogeneous, stable and controlled concentration polymer suspension of NWs or NTs, (ii) expansion of the polymer suspension using a circular die to form a bubble at controlled pressure, P, and expansion rate, where stable vertical expansion is achieved using an external vertical force, F, and (iii) transfer of the bubble film to substrates or open frame structures. BLOWN BUBBLE FILMSTo characte...

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Dissolution of Full-Length Single-Walled Carbon Nanotubes

Cited by 561 publications

References 31 publications

The feasibility of isolation and detection of fullerenes and carbon nanotubes using the benzene polycarboxylic acid method

The feasibility of isolation and detection of fullerenes and carbon nanotubes using the benzene polycarboxylic acid method

Morphology and Dispersion of Pristine and Modified Carbon Nanofibers in Water

Nanowires and Carbon Nanotubes

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