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METHOD FOR MANUFACTURING SUBSTRATE FOR SURFACE ENHANCED RAMAN SPECTROSCOPY, AND SUBSTRATE MANUFACTURED BY SAID METHOD

外国特許コード F160008868
整理番号 (S2015-0694-N0)
掲載日 2016年10月5日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2016JP055542
国際公開番号 WO 2016136851
国際出願日 平成28年2月25日(2016.2.25)
国際公開日 平成28年9月1日(2016.9.1)
優先権データ
  • 特願2015-035503 (2015.2.25) JP
発明の名称 (英語) METHOD FOR MANUFACTURING SUBSTRATE FOR SURFACE ENHANCED RAMAN SPECTROSCOPY, AND SUBSTRATE MANUFACTURED BY SAID METHOD
発明の概要(英語) A method for manufacturing a substrate for surface enhanced Raman spectroscopy which has a metal film formed on the surface thereof, said method being characterized by comprising the steps of: immersing at least a part of a substrate in a mixed solution prepared by mixing a metal nano-particle solution containing metal nano-particles with an oil-in-water-type emulsion solution; pouring an oily solution into the mixed solution to form an oil/water interface; and pulling out the substrate when the metal nano-particles are accumulated on the oil/water interface, thereby depositing a metal film formed from the metal nano-particles on the surface of the substrate. By employing the method, it becomes possible to provide a substrate for surface enhanced Raman spectroscopy which can be manufactured at low cost and has a uniformly protruded and depressed surface structure.
従来技術、競合技術の概要(英語) BACKGROUND ART
Raman spectroscopy, a substance to be measured when irradiated with light having a predetermined wavelength, the incident light and the very slight light of different wavelengths contained in light scattering, the incident light and if the frequency of the different wavelengths of light, molecules contained in the material of the measuring object is equal to the natural frequency is used.
However, the incident light at a different wavelength of light, is extremely weak. Therefore, at present a surface enhanced Raman spectroscopy has been used. This surface enhanced Raman spectroscopy, a substance to be measured is dropped on the surface of the nanoscale textured structure made of a noble metal in advance, the noble metal in the vicinity of the concavo-convex structure due to cause a near field, and the near-field light through the different wavelengths of light to be amplified is used.
As a method of forming the concavo-convex structure, a top-down processing method, vacuum vapor deposition method, the use of aggregation of the noble metal nanoparticles, or plastic microspheres using known methods.
A top-down processing method, an electron beam or ion beam or the like is used, the surface of the insulating substrate such as a glass plate, a noble metal deposition, lifting off, or by cutting away the noble metal is deposited to form a fine structure so as to form a convexity.
Vacuum vapor deposition method, the surface of an insulating glass plate by depositing a metal on an irregular structure.
Aggregation of the noble metal nanoparticles used in the method, the colloidal noble metal nanoparticles and the surface of the insulating substrate such as a glass plate and is aggregated with an irregular structure.
In the usage of the plastic micro-spheres, the surface of the glass plate or an insulating substrate such as a plastic sphere of the sub-micron to micron size are arranged in a self-assembled, the upper surface of the plastic sphere in depositing a metal, a plastic sphere has been equalized by the size of the irregular structure (for example, see Patent Document 1.).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
  • 発明者(英語)
  • TAKEYASU NOBUYUKI
  • KAGAWA RYUSUKE
  • KANETA TAKASHI
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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