Patent application number | Description | Published |
20100129261 | Spectral sensor for surface-enhanced raman scattering - The spectral sensor for surface-enhanced Raman scattering (SERS) of the present invention is prepared with a single-crystal noble metal nanowire which has a high quality, a high purity and an excellent shape. Thus, the sensor can be used for in-situ detection. Further, since a sensor site for reacting with irradiated laser beam can have a controlled structure, shape and a controllable hot spot, reliability and reproducibility are excellent and sensitivity of the sensor can be improved. In addition, with the optimization of a mechanical structure of a single noble metal single-crystal nanowire and a polarization direction of laser beam, sensitivity, selectivity and signal intensity become high. Furthermore, the spectral sensor for surface-enhanced Raman scattering of the present invention can be advantageously used not only as a sensor for detecting chemicals but also as a biosensor and a sensor for diagnosis of disease. | 05-27-2010 |
20100233426 | NOBLE METAL SINGLE CRYSTALLINE NANOWIRE AND THE FABRICATION METHOD THEREOF - The present invention provides a method for fabricating a single crystalline noble metal nanowire using noble metal oxide, noble metal material or noble metal halide as a precursor and a single crystalline noble metal nanowire, and more particularly a method for fabricating a single crystalline noble metal nanowire on a single crystalline substrate by heat treating a precursor located at a front portion of a furnace and a substrate located at a rear portion of the furnace in an inert flow atmosphere and a single crystalline noble metal nanowire fabricated by the fabrication method. The present invention fabricates a single crystalline noble metal nanowire by non-catalytic vapor phase transport method, the process is simple and reproducible, the fabricated nanowire is a defect free and impurity free, high quality and high purity noble metal nanowire of complete single crystal state. | 09-16-2010 |
20100272951 | TWIN-FREE SINGLE CRYSTAL NOBLE-METAL NANO WIRE AND FABRICATION METHOD OF TWIN-FREE SINGLE CRYSTAL NOBLE-METAL NANO WIRE - Provided is a fabrication method of a noble metal nanowire. More specifically, provided is a fabrication method of a noble metal nanowire, wherein the noble metal nanowire having an epitaxial relation with a single crystal substrate is fabricated on the single crystal substrate using noble metal halide as a precursor by placing the precursor in a front portion of a reactor and the single crystal substrate in a rear portion of the reactor and performing heat treatment in a condition that an inert gas flows from the front portion of the reactor to the rear portion of the reactor under a predetermined pressure, wherein a major axial direction of the noble metal nanowire with respect to a surface of the single crystal substrate is controlled by controlling a temperature of the precursor. | 10-28-2010 |
20100316874 | FABRICATION METHOD OF BISMUTH SINGLE CRYSTALLINE NANOWIRE - A bismuth single crystalline nanowire is fabricated by vaporizing bismuth powder on a substrate without using a template having nanopores. Instead a simple and reproducible vapor-phase transport process is used. The fabricated bismuth nanowires have high purity and quality with perfect single crystallinity, and can have uniform size and are not coagulated on a single crystalline substrate. | 12-16-2010 |
20110008568 | Oriented noble metal single crystalline nanowire and preparation method thereof - Disclosed are a noble metal nanowire oriented to a surface of a single crystalline substrate, which is prepared using a noble metal oxide, noble metal or noble metal halide as a precursor and, in addition, a method for preparation of the same. The present invention adopting a vapor phase transport method to prepare the noble metal nanowire without any catalyst has advantages of simplifying and reproducing processes of the method and enabling mass production thereof. The prepared nanowire exhibits high purity and quality and a complete crystalline state without defects and/or impurities. The prepared noble metal nanowire also has orientation to a surface of a single crystalline substrate and alignment of the nanowire as well as the orientation can be controlled. | 01-13-2011 |
20110165586 | Detection Method of Bio-Chemical Material Using Surface-Enhanced Raman Scattering - Provided is a detection method of a biochemical material using surface-enhanced Raman scattering in order to detect the existence of a biochemical material in a target subject or its content therein, more particularly a detection method of a biochemical material facilitating multiplex detection with high-sensitivity, high-reproducibility, high-reliability, and high-precision owing to multiple hot spots formed on the nanowire surface of a single crystal body by the bond of multiple nanoparticles which are physically separated from each other. | 07-07-2011 |
20110220864 | SINGLE-CRYSTALLINE GERMANIUM COBALT NANOWIRE, A GERMANIUM COBALT NANOWIRE STRUCTURE, AND A FABRICATION METHOD THEREOF - Provided is a single-crystalline Co | 09-15-2011 |
20110262702 | SINGLE CRYSTALLINE METAL NANOPLATE AND THE FABRICATION METHOD THEREOF - Disclosed is a fabrication method of a metal nanoplate using metal, metal halide or a mixture thereof as a precursor, wherein the single crystalline metal nanoplate is fabricated on a single crystalline substrate by performing heat treatment on a precursor including metal, metal halide or a mixture thereof and placed at a front portion of a reactor and the single crystalline substrate placed at a rear portion of the reactor under an inert gas flowing condition. A noble metal nanoplate of several micrometer size can be fabricated using a vapor-phase transport process without any catalyst, the process is simple and reproducible, the fabricated nanoplate is a single crystalline metal nanoplate having high crystallinity and high purity and not having a two-dimensional defect and impurities, a morphology of the metal nanoplate and an orientation of the metal nanoplate with respect to the substrate can be controlled by controlling a surface direction of the single crystalline substrate, and the metal nanoplate of several micrometer size is mass-producible. | 10-27-2011 |
20130128366 | OPTICAL NANOANTENNA USING SINGLE-CRYSTALLINE SILVER NANOWIRE, METHOD OF MANUFACTURING THE SAME AND OPTICAL NANOANTENNA USING SINGLE-CRYSTALLINE METAL NANOWIRE - An optical nanoantenna includes a single-crystalline silver (Ag) nanowire. The single-crystalline silver nanowire is configured to output an optical antenna radiation pattern based on incident lights. The optical antenna radiation pattern includes multilobe radiation patterns, and each multilobe radiation pattern has a plurality of lobes that are radially disposed centered on the single-crystalline silver nanowire. The incident lights are visible lights in entire visible wavelength bands. Accordingly, the optical nanoantenna according to example embodiments operates at multiple resonances in the full visible range. | 05-23-2013 |