Abstract:
A method for preparing a spherical colloidal crystal with an opalescence effect is provided to exhibit identical optical properties as photonic crystal spheres that are irrespective of the observation direction by constructing a three-dimensional structure similar to that of natural opal, thereby forming faces(1,1,1) all over surfaces of the spheres. A method for preparing a spherical colloidal crystal with an opalescence effect comprises the steps of: (a) preparing a droplet containing a monodispersed sphere having a diameter of 50 to 500 nm and a standard deviation of less than 5%; and (b) removing a solvent from the prepared droplet to prepare a spherical colloidal crystal. The monodispersed sphere of the step(a) is at least one selected from the group consisting of a metal chalcogenide, a metal oxide, a metal pnictide, metals of group 1, metals of group 2, metals of group 3, silicon, germanium, tin, lead, phosphorous, arsenic, antimony, bismuth, silicon dioxide, aluminum oxide, titanium dioxide, zirconium dioxide, gallium nitride, boron nitride, aluminum nitride, silicon nitride, and phosphorous nitride. The monodispersed sphere of the step(a) is prepared by performing a sol-gel reaction in multiple stages using a Stober-Fink-Bohn method.
Abstract:
The present invention relates to a packaging box and more specifically, a packaging box capable of accommodating an article by being spread in a container shape and being stored and carried by being bent in a plate shape. The packaging box (100) according to the present invention improves practicality and usability as it is spread in the container shape or is bent in the plate shape with a simple operation. The packaging box is neatly bent so that the appearance of the packaging box is improved. The packaging box is spread from the small plate shape to a container of a large volume so that it provides fun for a user.
Abstract:
PURPOSE: A scattered light tomography image processing method and a device thereof are provided to improve the picture quality of the tomography image by effectively supplementing the boundary information loss of the tomography image of the scattering medium. CONSTITUTION: An illumination light generating unit(101) generates the illuminance light which is structured to a desired pattern. An illumination light generating unit generates the pattern of the illumination light by using a spatial filter or a spatial light modulator. An image measuring unit(102) measures a penetration image by irradiating illumination light to medium including a target object. An image recovery unit(103) restores target images corresponding to the target object from a transparent image by using frequency data of the illumination light.
Abstract:
A method for preparing a spherical colloidal crystal with an opalescence effect is provided to exhibit identical optical properties as photonic crystal spheres that are irrespective of the observation direction by constructing a three-dimensional structure similar to that of natural opal, thereby forming faces(1,1,1) all over surfaces of the spheres. A method for preparing a spherical colloidal crystal with an opalescence effect comprises the steps of: (a) preparing a droplet containing a monodispersed sphere having a diameter of 50 to 500 nm and a standard deviation of less than 5%; and (b) removing a solvent from the prepared droplet to prepare a spherical colloidal crystal. The monodispersed sphere of the step(a) is at least one selected from the group consisting of a metal chalcogenide, a metal oxide, a metal pnictide, metals of group 1, metals of group 2, metals of group 3, silicon, germanium, tin, lead, phosphorous, arsenic, antimony, bismuth, silicon dioxide, aluminum oxide, titanium dioxide, zirconium dioxide, gallium nitride, boron nitride, aluminum nitride, silicon nitride, and phosphorous nitride. The monodispersed sphere of the step(a) is prepared by performing a sol-gel reaction in multiple stages using a Stober-Fink-Bohn method.
Abstract:
A noble preparation method of high functional nonspherical colloidal particles is provided, wherein the nonspherical colloidal particles can be applied as a base material of optoelectronic devices since the nonspherical colloidal particles have a regular and unique structure instead of a spherical structure and have two different physical properties in one self-assembled structure. A preparation method of a high functional nonspherical colloidal self-assembly comprises mixing a mixed solution of first colloidal particles and second colloidal particles smaller than the first colloidal particles with a continuous phase liquid; applying a shear stress to a mixture to obtain a droplet; and removing a solvent from the droplet to form a colloidal self-assembly. A preparation method of a high functional nonspherical porous structure comprises the steps of: mixing a mixed solution comprising first colloidal particles and second colloidal particles smaller than the first colloidal particles with a continuous phase liquid, applying a shear stress to a mixture to obtain a droplet, and removing a solvent from the droplet to prepare a high functional nonspherical colloidal self-assembly; and removing the first colloidal particles from the high functional nonspherical colloidal self-assembly.
Abstract:
PURPOSE: A method for manufacturing an optofluidic element in which a metallic sphere gap nano structures are accumulated is provided to reduce costs and time for a process and simplify a process condition by using a self-assembly phenomenon of colloid. CONSTITUTION: A method for manufacturing an optofluidic element in which a metallic sphere gap nano structures are accumulated comprises next steps. Colloid particle layer of a single story, in which colloid particles are regularly arranged, is formed on the top of a polymer thin film, thereby being dipped into the polymer thin film. The colloid particles dipped into the polymer thin film are eliminated so that a spherical pore structure of a nano meter scale is formed on the polymer thin film. A metallic thin film is deposited so that a metallic thin film in the inside of a gap and the metallic thin film on the top of the polymer thin film are discontinuously formed. A patterned metallic structure is manufactured by using an UV-crosslinkable polymer. Minute flexible fluidic elements are integrated in the patterned metallic structure. [Reference numerals] (AA) Colloid particle; (BB) Impregnation; (CC) Eliminating colloid particle; (DD) Polymer; (EE) Depositing metal thin film
Abstract:
PURPOSE: A method for generating and acquiring a barcode document is provided to improve accessibility of a user to the document, by generating a two-dimensional barcode storing document information and inserting the two dimensional barcode into the document. CONSTITUTION: A two-dimensional barcode including storage position on the internet of a shared document is generated. The two-dimensional barcode is inserted into a fixed position of an intermediation document, and the intermediation document is stored locally. The shared document is transmitted to the storage position indicated by the two-dimensional barcode, and is stored (S104). The two-dimensional barcode generates a public key and a private key for the shared document, and is generated by including the storage position of the shared document and the public key. [Reference numerals] (AA) Start; (BB) End; (S101) Document print request; (S102) Identifiable information generation; (S103) Storage position information input; (S104) Transmit a document to a storage position; (S105) Convert a pile for a print; (S106) Transmission to a print queue