Abstract: Embodiments are directed to a method for directly synthesizing graphene on a surface of a target object, which includes: forming a non-metal layer on a support substrate; disposing the target object in a space above the support substrate, which is opposite to the non-metal layer; and injecting a carbon precursor to form graphene on the surface of the target object to synthesize a graphene film, wherein the graphene is nucleated and grown by a decomposition of the carbon precursor, the carbon precursor is decomposed by heat with the catalytic assist from the non-metal layer, a carbon atom from the decomposition of the precursor is anchored on the surface to form the graphene film.

Abstract: A method for in situ synthesis of graphene along a lengthwise direction of a waveguide applied to a photonic device includes processing an evanescent field of laser propagating in the waveguide to spread outward the waveguide, depositing a nickel thin film on a surface of the waveguide, growing graphene between a surface of the waveguide and a nickel thin film by irradiating telecommunication laser to a core of the waveguide, and removing the nickel thin film from the waveguide. Accordingly, graphene with high optical nonlinearity is in situ synthesized in the photonic device.

Abstract: A contact lens for collecting tear or delivering a drug includes an inner lens placed on an eyeball, an outer lens provided at an outer side of the inner lens to overlap the inner lens, and a plurality of pillars disposed between the inner lens and the outer lens to form a space between the inner lens and the outer lens, wherein the contact lens has a plurality of interfacing ports for connecting a chamber with an outside of the contact lens.

Abstract: The present invention relates to a non-invasive health indicator monitoring system including a sensing module, an electric power storage module, and a circuit module to collect health indicator information by contacting with a subject. In addition, the present invention also relates to a method for monitoring health indicator continuously by using the health indicator monitoring system.

Abstract: Disclosed herein is a smart wearable lens mounted with an all-solid-state thin film secondary battery including a flexible substrate, a cathode current collector, a cathode, a solid electrolyte, an anode, and an anode current collector. The smart wearable lens mounted with the all-solid-state thin film secondary battery may be stably and continuously supplied with power and has a low self-discharge rate. In addition, the smart wearable lens may minimize aversion when humans are wearing the smart wearable lens and be suitably used for a curved lens, especially a micro-lens such as a contact lens.

Abstract: A method for in situ synthesis of graphene along a lengthwise direction of a waveguide applied to a photonic device includes processing an evanescent field of laser propagating in the waveguide to spread outward the waveguide, depositing a nickel thin film on a surface of the waveguide, growing graphene between a surface of the waveguide and a nickel thin film by irradiating telecommunication laser to a core of the waveguide, and removing the nickel thin film from the waveguide. Accordingly, graphene with high optical nonlinearity is in situ synthesized in the photonic device.

Abstract: A sensor assembly has a flexible body, and a plurality of fiber Bragg gratings (FBG) sensor inserted into the body, the FBG sensor includes an optical fiber extending in a length direction of the body and a plurality of lattices disposed in the optical fiber, a variation of a wavelength spectrum of light, caused by a variation of an interval of the plurality of lattices, is detected, and at least one of force information applied to the body and temperature information of the body is extracted together with refraction information of the body.

Abstract: A contact lens for collecting tear or delivering a drug includes an inner lens placed on an eyeball, an outer lens provided at an outer side of the inner lens to overlap the inner lens, and a plurality of pillars disposed between the inner lens and the outer lens to form a space between the inner lens and the outer lens, wherein the contact lens has a plurality of interfacing ports for connecting a chamber with an outside.

Abstract: Disclosed is an ultrafast optical switching device based on black phosphorus, including a first channel to generate a first laser which is a continuous wave of a first wavelength, a second channel to generate a second laser which is a continuous wave of a second wavelength different from the first wavelength, a modulator to modulate the second laser generated by the second channel into a pump signal, a first and a second wavelength tunable filters to change wavelengths of the first laser and the second laser, respectively, a directional coupler to couple the first laser and the second laser, and an optical element to control the first and second lasers coupled by the directional coupler by means of nonlinearity and an evanescent field of black phosphorus. Accordingly, volume and size of an ultrafast optical switching device may be reduced, and a data processing rate may be improved.

Abstract: Disclosed are amorphous carbon nanofibers including copper nanoparticles or copper alloy nanoparticles, copper composite nanoparticles prepared by grinding the amorphous carbon nanofibers and implemented as surfaces of Cu-included particles are partially or wholly coated with amorphous carbons, a dispersed solution including the copper composite nanoparticles, and preparation methods thereof and the amorphous carbon nanofibers include nanoparticles including copper, copper nanoparticles or copper alloy nanoparticles, and, the copper composite nanoparticles are implemented as surfaces of Cu-included particles are partially or wholly coated with amorphous carbons.

Abstract: A tear collection device comprises: a body attached to an eyeball; a tear inlet for allowing tear to flow into the body; a storing space formed inside the body and capable of storing the tears having flowed into the body; and a pump forming a pressure difference inside the body such that tears flow into the body through the tear inlet, wherein the pump is driven by using, as power, eye blinking movements of a wearer so as to form the pressure difference inside the body, thereby allowing the tears to flow into the body.

Abstract: Disclosed are a method for manufacturing an electrode including mixing at least two electrode materials selected from a carbon material, a metal oxide precursor, and a conductive polymer with a solvent to prepare a mixture, coating the mixture on a current collector, and radiating IPL (intense pulsed light) on the mixture coated on the current collector, the electrode manufactured according to the method, and a supercapacitor and rechargeable lithium battery including the electrode.

Abstract: A method for manufacturing graphene is provided, comprising (1) introducing a supporting substrate in a reactor; (2) preparing (nano) crystalline alumina catalyst having catalytic activity on the supporting substrate to prepare an insulating substrate; (3) growing nano graphenes on the insulating substrate to manufacture graphene film comprising graphene layer of the nano graphenes, which are grown without use of metal catalyst substantially. The graphene layer composed of the nano graphene has spatially homogeneous structural and electrical properties even in synthesis as large area and can be applied to flexible electronic devices. In addition, as it has easy detachment of the substrate and the graphene film and can detach the graphene film without damage of the substrate, leaving no residual graphene on the substrate, it is possible to grow the nano graphene by reusing the substrate.

Abstract: A sensor assembly has a flexible body, and a plurality of fiber Bragg gratings (FBG) sensor inserted into the body, the FBG sensor includes an optical fiber extending in a length direction of the body and a plurality of lattices disposed in the optical fiber, a variation of a wavelength spectrum of light, caused by a variation of an interval of the plurality of lattices, is detected, and at least one of force information applied to the body and temperature information of the body is extracted together with refraction information of the body.

Abstract: The method of manufacturing nanoparticles of a target material includes mixing graphene oxide with an aqueous solvent to prepare an aqueous solution, mixing the target material with an organic solvent to prepare an organic solution, mixing the aqueous solution with the organic solution, and preparing nanoparticles of the target material by the graphene oxide.

Abstract: A device for forming a roll-to-roll pattern includes: a plurality of rollers, that are separated from each other, for transferring a substrate in one direction; a pattern former provided on the substrate between neighboring rollers from among the plurality of rollers, and forming a pattern on the substrate; an absorber facing the pattern former with the substrate therebetween, and absorbing the substrate; a light irradiator neighboring the pattern former and irradiating light to the pattern; and a controller for controlling the roller, the pattern former, the absorber, and the light irradiator so that the pattern may be formed on the substrate and light may be irradiated to the pattern.

Abstract: Provided are a method of manufacturing multi-layered thin films, multi-layered thin films formed by the same, a method of manufacturing an organic thin film transistor including the same, and an organic thin film transistor manufactured by the same. The method of manufacturing multi-layered thin films includes: preparing a substrate; printing a blend solution including an organic semiconductor, an insulating polymer, and a solvent on the substrate; and simultaneously forming an insulating polymer thin film and an organic semiconductor thin film on the insulating polymer thin film by using a vertical phase separation phenomenon of the organic semiconductor and the insulating polymer, in which according to contents of the organic semiconductor and the insulating polymer in the blend solution and a printing speed of the blend solution, a width of the organic semiconductor thin film, and a thickness of the insulating polymer thin film are controlled.

Abstract: The present invention relates to a non-invasive health indicator monitoring system including a sensing module, an electric power storage module, and a circuit module to collect health indicator information by contacting with a subject. In addition, the present invention also relates to a method for monitoring health indicator continuously by using the health indicator monitoring system.

Abstract: The present invention relates to an apparatus for gas sensing including: a header part to generate interference wave to light from light source by the principle of fiber fabry-perot interferometer; and an optical spectrum analyzer to decide existence of specific gas based on change of spectrum periodicity of the interference wave, wherein the header part includes a sensing material that expands or shrinks by the above specific gas and the above interference wave changes its spectrum periodicity depending on expansion and shrinkage of the above sensing material.

Abstract: A method of manufacturing a thin-film transistor is provided, including preparing ink including a solution in which a graphene oxide, a reduced graphene oxide, or a combination thereof is dispersed, forming the ink on a substrate in the form of a pattern, and forming a source electrode and a drain electrode that are positioned at edges of the pattern and a semiconductor channel positioned between the electrodes by a coffee-ring effect in the ink by using the graphene oxide, the reduced graphene oxide, or the combination thereof within the formed pattern.