Abstract: A catalyst for an organic reaction and a method of using a catalyst in an organic reaction are provided. The catalyst for an addition or condensation reaction includes a graphene oxide including an oxygen functional group, and the catalyst is configured to promote the addition or condensation reaction by bonding the oxygen functional group with an alkali metal ion or alkali earth metal ion during the addition or condensation reaction.

Abstract: A structure including a graphene electrode and a molecular monolayer, a flexible electronic device, and a method of production thereof are provided. The structure includes a first graphene electrode and a molecular monolayer disposed on the first graphene electrode and chemically or physically bound to the first graphene electrode.

Abstract: A catalyst for an organic reaction and a method of using a catalyst in an organic reaction are provided. The catalyst for an addition or condensation reaction includes a graphene oxide including an oxygen functional group, and the catalyst is configured to promote the addition or condensation reaction by bonding the oxygen functional group with an alkali metal ion or alkali earth metal ion during the addition or condensation reaction.

Abstract: A field effect transistor using a channel layer including a phosphorus-doped graphene and a method of fabricating the same are provided. Further, a phosphorus-doped graphene and a method of producing the same are provided. The field effect transistor includes: a source electrode and a drain electrode formed on a substrate; and a channel layer comprising a phosphorus-doped graphene, the channel layer electrically connected to the source electrode and the drain electrode.

Abstract: A method of producing interlayer distance controlled graphene, an interlayer distance controlled graphene composition, and a supercapacitor are provided. A method of producing an interlayer distance controlled graphene involves dispersing a graphene oxide in a solution by using a surfactant, forming a reduced graphene oxide by adding a reducing agent into the solution containing the dispersed graphene oxide, and adding a pillar material that is activated at its both ends by a N2+ group into the solution containing the reduced graphene oxide to control an interlayer distance of the reduced graphene oxide.

Abstract: A method of producing reduced graphene oxide and reduce graphene oxide produced by the method are provided. The method of producing reduced graphene oxide involves forming a graphene oxide-dispersed solution comprising graphene oxide and a surfactant that comprises at least two aromatic functional groups, reducing the graphene oxide-dispersed solution to obtain a layered structure of reduced graphene oxide comprising the at least two aromatic functional groups, and dispersing the layered structure of reduced graphene oxide in a solvent to produce a multi-layered reduced graphene oxide.

Abstract: The present invention relates to a horizontal biosensor, comprising a reduced graphene oxide layer formed on a substrate; a molecular linker formed on the reduced graphene oxide layer; and a metal nanoparticle layer formed on the molecular linker.

Abstract: A nanowire composite, a nanowire composite film, a transparent electrode, a method of preparing a nanowire composite, and a method of preparing a nanowire composite film are provided. The nanowire composite includes metallic nanowires and an organic compound that connects the metallic nanowires to one another.

Abstract: Aggregated graphene oxide includes a range of specific surface area, and a method of preparing aggregated graphene oxide includes dispersing graphene oxide in an organic solvent and adding an anti-solvent. Aggregated graphene includes a range of specific surface area, and a method of preparing aggregated graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and reducing the aggregated graphene oxide. Aggregated and nitrogen-doped includes a range of specific surface area, and a method of preparing aggregated and nitrogen-doped graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and photo-reacting the aggregated graphene oxide.

Abstract: An optical fiber includes a graphene oxide and a reduced graphene oxide and a gas sensor includes the optical fiber. A method for manufacturing the optical fiber includes coating a graphene oxide layer and reducing a part of the graphene oxide layer, and a method for manufacturing the gas sensor includes coating a graphene oxide layer and reducing a part of the graphene oxide layer.

Abstract: The present disclosure relates to a light emitting device using a graphene quantum dot, and an organic light emitting device including the same.

Abstract: A field effect transistor using a channel layer including a phosphorus-doped graphene and a method of fabricating the same are provided. Further, a phosphorus-doped graphene and a method of producing the same are provided. The field effect transistor includes: a source electrode and a drain electrode formed on a substrate; and a channel layer comprising a phosphorus-doped graphene, the channel layer electrically connected to the source electrode and the drain electrode.

Abstract: An agent for reducing graphene oxide and a method for preparing reduced graphene oxide or graphene are provided. An agent for reducing graphene oxide include a mixture of a reducing agent containing a halogen element with trifluoroacetic acid (CF3COOH).

Abstract: The present invention relates to a horizontal biosensor, comprising a reduced graphene oxide layer formed on a substrate; a molecular linker formed on the reduced graphene oxide layer; and a metal nanoparticle layer formed on the molecular linker.

Abstract: A conductive thin film, a transparent electrode, and methods of producing the same are provided. A method for preparing a conductive thin film may involve forming a layer of reduced graphene oxide and carbon nanotube on a substrate using a reducing agent containing a halogen atom.

Abstract: There are provided a composite including a metal component supported on graphene, a preparing method of the same, and uses of the same. The composite may be used for removing a contaminant.

Abstract: Provided are an electron donor-azo-electron acceptor compound having a thiol-based anchoring group, a method of synthesizing the compound, and a molecular electronic device having a molecular active layer formed of the compound. The compound for forming a molecular electronic device includes an azo compound that has a dinitrothiophene group and an aminobenzene group having thiol derivatives. The compound forms a molecular active layer in the molecular electronic devices. The molecular active layer is self-assembled on an electrode using the thiol derivative in the azo compound as an anchoring group. The molecular active layer in the molecular electronic device forms a switching device switching between an on-state and an off-state in response to a voltage applied to electrodes or a memory device storing a predetermined electric signal in response to a voltage applied to the electrodes.

Abstract: Provided are a molecular electronic device including a functional molecular active layer having a stack structure including oppositely charged first and second molecular active layers, and a method of manufacturing the molecular electronic device. The molecular electronic device includes: a first electrode; an organic dielectric thin layer comprising molecules each having a first end self-assembled on a surface of the first electrode and a second end having a cationic or anionic group; a functional molecular active layer stacked on the organic dielectric thin layer by selective self-assembly with positive and negative ions and comprising an electroactive functional group having a cyclic compound; and a second electrode formed on the functional molecular active layer.

Abstract: Provided is a molecular electronic device including an electrode including a conductive polymer electrode layer. The molecular electronic device includes a first electrode; a funtional molecular active layer, self-assembled on the first electrode, including an electroactive functional group having a cyclic compound; and a second electrode disposed on the functional molecular active layer. The second electrode includes a conductive polymer electrode layer contacting with the functional molecular active layer and a metal electrode layer disposed on the conductive polymer electrode layer. The conductive polymer electrode layer of the second electrode prevents damage to the functional molecular active layer, thereby preventing a short circuit in an ultra-thin molecular electronic device.

Abstract: Provided are a molecular electronic device and a method of fabricating the molecular electronic device. The molecular electronic device includes a substrate, an organic dielectric thin film formed over the substrate, a molecular active layer formed on the organic dielectric thin film and having a charge trap site, and an electrode formed on the molecular active layer. The organic dielectric thin film may be immobilized on the electrode or a Si layer by a self-assembled method. The organic dielectric thin film may include first and second molecular layers bound together through hydrogen bonds. An organic compound may be self-assembled over the substrate to form the organic dielectric thin film. The organic compound may include an M?-R-T structure, where M?, R and T represent a thiol or silane derivative, a saturated or unsaturated C1 to C20 hydrocarbon group which is substituted or unsubstituted with fluorine (F), and an amino(—NH2) or carboxyl (—COOH) group, respectively.