A carbon nanotube composite has an organic substance attached to at least a part of a surface thereof. At least one functional group selected from a hydroxyl group, a carboxy group, an amino group, a mercapto group, a sulfo group, a phosphonic acid group, an organic or inorganic salt thereof, a formyl group, a maleimide group and a succinimide group is contained in at least a part of the carbon nanotube composite.

Embodiments of the present invention relate to conducting elastomers and associated fabrication methods. In one embodiment, the conducting elastomer comprises a filler powder and a polymer. The filler powder includes carbon black and functionalized graphene sheets. The polymer has a molecular weight of about 200 g/mol to about 5000 g/mol and is a liquid at room temperature.

The invention relates to a method of functionalizing surfaces of carbon nanomaterials using oxygen in the air. The method is clean and eco-friendly with virtually zero chemical usage and zero waste generation. The dispersion of the surface-functionalized carbon nanomaterials is excellent in organic solvents.

A wire-grid polarizing element comprising a base substrate, and a carbon nanotube wire-grid and a metal wire-grid which are disposed on the base substrate, wherein the metal wire-grid and the carbon nanotube wire-grid are laminated in a direction perpendicular to the base substrate, and the carbon nanotube wire-grid comprises a plurality of carbon nanotubes having the same axial direction.

A chemical vapor deposition method for fluorine-containing carbon materials preparation provided. The claimed method comprises treating of carbons with fluorocarbons or derivatives that passes at a moderate high temperature. The fluorine-containing carbon materials show hydrophobicity, high thermal stability and can be used as catalysts support, lithium battery anodes, and hydrophobic materials or as surface precursor. Surface fluorine characterized by intensive signal in the XPS spectrum, found in a range of 685-687 eV. Obtained fluoro-containing functionalities is stable at a temperature about 1000° C.

Provided is a CNT composite capable of achieving both high detection sensitivity and specific detection when used as a sensor. The carbon nanotube composite includes an aggregation inhibitor (A) and a blocking agent (B) attached to at least a portion of a surface.

Sub-lithographic structures configured for selective placement of carbon nanotubes and methods of fabricating the same generally includes alternating conformal first and second layers provided on a topographical pattern formed in a dielectric layer. The conformal layers can be deposited by atomic layer deposition or chemical vapor deposition at thicknesses less than 5 nanometers. A planarized surface of the alternating conformal first and second layers provides an alternating pattern of exposed surfaces corresponding to the first and second layer, wherein a width of at least a portion of the exposed surfaces is substantially equal to the thickness of the corresponding first and second layers. The first layer is configured to provide an affinity for carbon nanotubes and the second layer does not have an affinity such that the carbon nanotubes can be selectively placed onto the exposed surfaces of the alternating pattern corresponding to the first layer.

Embodiments described herein relate generally to the large scale production of functionalized graphene. In some embodiments, a method for producing functionalized graphene includes combining a crystalline graphite with a first electrolyte solution that includes at least one of a metal hydroxide salt, an oxidizer, and a surfactant. The crystalline graphite is then milled in the presence of the first electrolyte solution for a first time period to produce a thinned intermediate material. The thinned intermediate material is combined with a second electrolyte solution that includes a strong oxidizer and at least one of a metal hydroxide salt, a weak oxidizer, and a surfactant. The thinned intermediate material is then milled in the presence of the second electrolyte solution for a second time period to produce functionalized graphene.

A method for manufacturing a vertically aligned carbon nanotube substrate includes the steps of treating a vertically aligned carbon nanotube array in an untreated state with a plasma to generate a vertically aligned carbon nanotube array in a plasma-treated state and adhering a coating onto at least a portion of the vertically aligned carbon nanotube array in the plasma-treated state to generate a vertically aligned carbon nanotube array in a coated state. The step of treating can include exposing the vertically aligned carbon nanotube substrate in the untreated state to the plasma in a plasma chamber. The step of adhering can include using a process of thermal evaporation or e-beam ablation. The method can also include the step of adhering a plurality of fluorophores to at least a portion of the vertically aligned carbon nanotube array in the coated state.

Disclosed are methods for separating carbon nanotubes on the basis of a specified parameter, such as length. The methods include labelling of the carbon nanotubes with a biological moiety, followed by SDS-PAGE and staining, to separate the carbon nanotubes on the basis of length and/or characterize their length. In some embodiments, egg-white lysozyme, conjugated covalently onto single-walled carbon nanotubes surfaces using carbodiimide method, followed by SDS-PAGE and visualization of the single-walled nanotubes using silver staining, provides high resolution characterization of length of the single-walled carbon nanotubes. This high precision, inexpensive, rapid and simple separation method obviates the need for centrifugation, additional chemical analyses, and expensive spectroscopic techniques such as Raman spectroscopy to visualize carbon nanotube bands. The disclosed methods find utility in quality-control in the manufacture of carbon nanotubes of specific lengths.