Abstract: The present disclosure relates to a graphene roll-to-roll transfer method, a graphene roll-to-roll transfer apparatus, a graphene roll manufactured by the graphene roll-to-roll transfer method, and uses thereof.

Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

Abstract: A method of fabricating multi-layered graphene includes disposing a first graphene layer on a carrier; disposing at least one second graphene layer on the first graphene layer to form a graphene sheet disposed on the carrier; and transferring the graphene sheet disposed on the carrier onto a substrate, wherein each of the graphene layers which constitute the graphene sheet has at least one damaged region, and the at least one damaged region of each of the graphene layers contacts at least one of non-damaged regions of a graphene layer or graphene layers, of the graphene layers, contacting the each of the graphene layers.

Abstract: A graphene quantum dot light emitting device includes: a first graphene; a graphene quantum dot layer disposed on the first graphene and including a plurality of graphene quantum dots; and a second graphene disposed on the graphene quantum dot layer. A method of manufacturing a graphene quantum dot light emitting device includes: forming a first graphene doped with a first dopant; forming a graphene quantum dot layer including a plurality of graphene quantum dots on the first graphene; and forming a second graphene doped with a second dopant on the graphene quantum dot layer.

Abstract: A method for forming graphene includes introducing a substrate and a carbon-containing reactant source into a chamber, and radiating a laser beam onto the substrate to decompose the carbon-containing reactant source and form graphene over the substrate using carbon atoms generated by decomposition of the carbon-containing reactant source. A carbon-containing gas (methane) decomposes upon radiation of a laser beam. The carbon-containing gas has a decomposition rate on the order of femtoseconds and the laser beam has a pulse on the order of nanoseconds or more. The graphene is grown in a single layer along the surface of the substrate. Then, the graphene is selectively patterned using a laser beam to form a desired pattern.

Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.

Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.

Abstract: There is provided a surface plasmon resonance sensor including a metallic graphene layer formed in a core of a predetermined area of an optical fiber from which a jacket and a cladding are removed. Further, a preparing method of the surface plasmon resonance sensor and a surface plasmon resonance sensor system is also provided.

Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

Abstract: There are provided a graphene roll-to-roll coating apparatus and a graphene roll-to-roll coating method on the basis of a continuous process.

Abstract: A graphene sheet and a method of manufacturing the graphene sheet are provided. The method includes: growing a graphene sheet on a graphene growth support by applying carbon sources and heat to the graphene growth support, the graphene growth support including a carbonization catalyst; and forming at least one ripple on the graphene sheet by cooling at least one of the graphene growth support and the graphene sheet, wherein the graphene growth support and the graphene sheet have different thermal expansion coefficients.

Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

Abstract: Provided are a method of manufacturing graphene, graphene manufactured by the method, a conductive thin film including the graphene, a transparent electrode comprising the graphene, and a radiating or heating device comprising the graphene. The method includes: preparing a graphene member including a base member, a hydrophilic oxide layer formed on the base member, a hydrophobic metal catalyst layer formed on the oxide layer, and graphene grown on the metal catalyst layer; applying water to the graphene member; separating the metal catalyst layer from the oxide layer; and removing the metal catalyst layer using an etching process.

Abstract: A method for chemical modification of graphene includes dry etching graphene to provide an etched graphene; and introducing a functional group at an edge of the etched graphene. Also disclosed is graphene, including an etched edge portion, the etched portion including a functional group.

Abstract: A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst.

Abstract: A semiconductor device may include first and second auxiliary gate electrodes and a semiconductor layer crossing the first and second auxiliary gate electrodes. A primary gate electrode may be provided on the semiconductor layer so that the semiconductor layer is between the primary gate electrode and the first and second auxiliary gate electrodes. Moreover, the first and second auxiliary gate electrodes may be configured to induce respective first and second field effect type source/drain regions in the semiconductor layer. Related methods are also discussed.

Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.

Abstract: The present invention discloses a method for synthesizing a calix[4]hydroquinone organic nanotube and a method for synthesizing an ultrathin, stable nanowire using said organic nanotube as a template.

Abstract: The present invention discloses a method for synthesizing a calix[4]hydroquinone organic nanotube and a method for synthesizing an ultrathin, stable nanowire using said organic nanotube as a template.