WO2012133961A1 - 전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 - Google Patents
전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 Download PDFInfo
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- WO2012133961A1 WO2012133961A1 PCT/KR2011/002130 KR2011002130W WO2012133961A1 WO 2012133961 A1 WO2012133961 A1 WO 2012133961A1 KR 2011002130 W KR2011002130 W KR 2011002130W WO 2012133961 A1 WO2012133961 A1 WO 2012133961A1
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- microshell
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- metallic material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
- G01Q70/00—General aspects of SPM probes, their manufacture or their related instrumentation, insofar as they are not specially adapted to a single SPM technique covered by group G01Q60/00
- G01Q70/16—Probe manufacture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/65—Raman scattering
- G01N21/658—Raman scattering enhancement Raman, e.g. surface plasmons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
- G01N21/552—Attenuated total reflection
- G01N21/553—Attenuated total reflection and using surface plasmons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
- G01Q30/00—Auxiliary means serving to assist or improve the scanning probe techniques or apparatus, e.g. display or data processing devices
- G01Q30/02—Non-SPM analysing devices, e.g. SEM [Scanning Electron Microscope], spectrometer or optical microscope
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01Q—SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING PROBE MICROSCOPY [SPM]
- G01Q60/00—Particular types of SPM [Scanning Probe Microscopy] or microscopes; Essential components thereof
- G01Q60/60—SECM [Scanning Electro-Chemical Microscopy] or apparatus therefor, e.g. SECM probes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/26—Electron or ion microscopes; Electron or ion diffraction tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y35/00—Methods or apparatus for measurement or analysis of nanostructures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/26—Electron or ion microscopes
- H01J2237/28—Scanning microscopes
- H01J2237/2803—Scanning microscopes characterised by the imaging method
Definitions
- the present invention is a novel measurement method and system that can simultaneously obtain electrochemical and spectroscopic information by improving the system including the method and probe of conventional scanning electrochemical microscopy (SECM). Configuration and method of manufacturing the probe.
- SECM scanning electrochemical microscopy
- Probes with microscopic spatial resolution are useful for identifying surface defects such as corrosion and dissolut ions, which are representative chemical reactions that occur at the interface. It is also useful for the development of new catalyst materials, including the ability to quickly evaluate a large number of candidates for materials with diverse catalytic activities. For example, developing a new catalyst material to effectively increase the performance of a fuel cell that converts various fuels into electrical energy is of industrial value because it can replace the existing expensive catalyst, platinum.
- the probes can be used to further study basic studies such as the path and rate of reactions occurring at the interface. Therefore, through the reaction mechanism research of various catalysts, By presenting the conditions of each material, it will be a stepping stone to systematic catalyst development, breaking away from the existing concept of engineering catalyst quality development based on limited analytical information.
- Raman analysis l Photography is one of the few methods that can be applied without water in the water and can be used extensively to provide chemical information on electrochemical reactions.
- the Raman spectroscopy measurement signal is typically too small to be practical unless it is a phenomenon called surface ace enhanced Raman scattering (SERS). SERS phenomena are only found in certain materials and structures, and Raman spectral spectra are generally not available for electrochemical reactions on any material electrode.
- a device capable of acquiring Raman spectroscopy can be a useful analytical instrument in many fields, including catalyst research and development.
- the first problem to be solved by the present invention is to provide a reproducible probe that can simultaneously obtain electrochemical and spectroscopic information regardless of the surface material.
- a second problem to be solved by the present invention is to provide a scanning system that can detect not only the intermediate product to diffuse but also the intermediate product moved and adsorbed on the surface.
- a first metal coating of a first metallic material on a spherical template surface to prepare a metallic microshell (b) on the inner wall of the capillary Conductive coating of a conductive material to produce a conductive capillary; (C) trapping the metallic microshell at one end of the conductive capillary; (d) a second metallic material on an inner wall of the conductive capillary trapped by the metallic microshell;
- a probe manufacturing method comprising the step of coating a second metal.
- the template may be selected from polystyrene, poly (methyl methacrylate), silica (Si0 2 ), two or more thereof and a mixture thereof, but is not limited thereto.
- the first metallic material may be selected from Au, Ag, Pt, Pd, Cu, and two or more kinds thereof.
- the conductive material is selected from Ru, Pt, Cu, Co, Ni, two or more of these mixtures, but is not limited to this material may have a conductivity capable of deposition by atomic vapor deposition method. Based on the disclosure of the present invention, it is apparent to those skilled in the art that a material capable of being deposited by atomic vapor deposition and having conductivity is applied to the present invention.
- the second metallic material may be selected from Au, Ag, Pt, Pd, Cu, or a combination of two or more thereof, but is not limited thereto, and may be the same as the U-metallic material. Although it may be different, it is preferable that the material is the same material in order to physically combine with the first metallic material to show electrical conductivity.
- the diameter of the metallic microshell is 1-3, preferably 1.5-2.5, more preferably 1.8-2— 3 urn, most preferably 2, visibility, transportability, SERS characteristics It is preferable in terms of maximization.
- the diameter of the one end of the capillary tube must be smaller than the diameter of the metallic microshell to attach the microshell to the capillary tube, particularly preferably 50-99% of the diameter of the metallic microshell diameter.
- the step (a) comprises: (i) potassium tetrachloroaurate hydrate, sodium tetrachloroaurate hydrate, chloroauric acid, hydrogen nucleated chloroplatinate (IV) hydrate, silver knight Rate, a precursor of the first metallic material selected from these two or more combinations, and a first reducing agent selected from ( ⁇ ) formaldehyde, ascorbic acid, hydroquinone, ammonium hydroxide, these two or more combinations
- the step ( a ) is preferably repeated 2-20 times by electroless plating so that SERS activity or Raman effect can be expressed in the metallic microshell. and, more preferably 5 - 15 times, even more preferably 8 - that is performed repeatedly 12 times It is good.
- the surface In order for the SERS activity or Raman effect to be manifested, the surface must be covered with a layer of gold property as a whole, and there must be a certain degree of roughness. If the amount of the electroless plated first metallic material layer is too small or too large, There may be problems that do not meet these conditions.
- step (b) comprises bis (ethylcyclopentadienyl) leuthenium, a halide compound (especially a chloride compound) of the conductive material, or an alkyl or alkoxide compound of the conductive material, or Performed by atomic layer deposition at a temperature of 250-350 ° C and a pressure of 1-5 Torr using a cyclopentadienyl complex or an organometallic compound such as alkyl or silyl amide, or a precursor selected from these two or more mixtures It is desirable to be.
- a halide compound especially a chloride compound
- alkyl or alkoxide compound of the conductive material or Performed by atomic layer deposition at a temperature of 250-350 ° C and a pressure of 1-5 Torr using a cyclopentadienyl complex or an organometallic compound such as alkyl or silyl amide, or a precursor selected from these two or more mixtures It is desirable to be.
- step (c) is preferably performed by applying a negative pressure to the capillary.
- step (c) comprises potassium tetrachloroaurate hydrate, sodium tetrachloroaurate hydrate, chloroauric acid, hydrogen nucleus chloroplatinate (IV) hydrate, and two or more of these.
- Preference is given to performing in a precursor solution of a second metallic material selected from the mixtures. More preferably, some of the precursor solution of the second metallic material is sucked into the capillary in the process, and most preferably, only the precursor of the second metallic material is present in the capillary without other metallic material or reducing agent. Do.
- the step (d) comprises: (i) potassium tetrachloroaurate hydrate, sodium tetrachloroaurate hydrate, chloroauric acid, hydrogen nucleus chloroplatinate (IV) hydrate A precursor of a second metallic material selected from two or more of these mixtures and (ii) potassium ferrocyanide (K 4 [Fe (CN) 6 ]), ruthenium (II) nucleoamine chloride, iridium (III) chloride, these It is preferable to carry out by an electroless plating method using a second reducing agent selected from two or more mixtures.
- step (d) is performed in the second reducing agent solution.
- step (c) (c-1) dilution of the precursor solution of the crab 1 metallic material, and (c-2) precursor of the diluted system 1 metallic material.
- steps (c), (c-1), (c-2), and (d) are all located in the capillary Can be performed in a controlled state to determine the adhesion of the microshell to the capillary. It could be important.
- One of the purposes of the above dilution process is to replace the capillary external solution with a crab reducing agent while the metallic microshell is trapped, and when the capillary tube is exposed out of the solution, the trapped metallic microshell is applied to the surface tension of the solution. It is intended to replace the external solution of the capillary with the metallic microshell trapped because it falls off the capillary.
- the replaced second reducing agent can induce reduction of the second metallic material at the surface of the microshell trapped in the capillary by providing electrons to the precursor of the systemic metallic material without directly encountering the precursor of the second metallic material inside the capillary. This is because the first metal material layer of the microshell is a conductor so that the second reducing agent can sense the potential of the precursor of the second metal material, so that electrons corresponding to the generated potential difference can move along the first metal material layer. Because.
- the above dilution process is preferably carried out until a difference in the concentration of the bimetallic substance is formed between the inside and outside of the capillary tube, where "the difference in the concentration of the second metallic substance is produced in abundance."
- a probe comprising (i) a capillary tube and ( ⁇ ) a metallic microshell attached to one end of the capillary tube.
- the inner wall of the capillary is coated with a conductive material
- the metallic microshell is coated with a first metallic material on the surface of the spherical template
- the conductive material and the first metallic material is the capillary is the metallic It can be electrically connected in the area of attachment with the microshell.
- the metallic microshell and the Not only the adhesion of the capillary tube but also the electrical conductivity of the probe can be greatly improved.
- the template may be selected from polystyrene, poly (methyl methacrylate), silica, two or more of these mixtures
- the first gold attribute material may be Au
- kg, Pt, Pd, Cu may be selected from two or more of these mixtures
- the conductive material may be selected from Ru, Pt, Cu, Co, Ni, two or more of these mixtures
- the second metallic material is Au , Ag, Pt, Pd, Cu, may be selected from two or more of these mixtures.
- the diameter of the metallic microshell may be 1-3 ffll, and the diameter of the one end of the capillary is preferably 50-99% of the diameter of the metallic microshell.
- the first metallic material is coated on the spherical template so that the SERS activity and the Raman effect can be expressed in the metallic microshell. It is desirable to achieve this by repeatedly performing 2-10 times with the electroless plating method so that SERS activity and Raman effect can be expressed in the shell.
- a method of manufacturing a metallic microshell by (A) first metal-coating a first metallic material on a spherical template surface, and (B) a capillary tube containing a conductive material therein.
- Producing a method of manufacturing a probe comprising the steps of: (C) applying a second metallic material to one end of the capillary, (D) attaching the metallic microshell to the second metallic material.
- the template may be selected from polystyrene, poly (methyl methacrylate), silica (Si0 2 ), and a combination of two or more thereof, but is not limited thereto.
- the first metallic material may be selected from Au, kg, Pt, Pd, Cu, and two or more kinds thereof.
- the conductive material is selected from Ru, Pt, Cu, Co, Ni, two or more of these mixtures, but is not limited thereto, and may be a material having conductivity capable of being deposited by atomic vapor deposition. Based on the disclosure of the present invention, it is apparent that it is easy for a person skilled in the art to select a material capable of being deposited by atomic vapor deposition and having a conductivity.
- the second metallic material may be selected from Au, Ag, Pt, Pd, Cu, and two or more kinds thereof, but is not limited thereto. Although it may be different or different, it is preferable that the same material in order to physically combine with the first metallic material to exhibit a high electrical conductivity,
- the diameter of the metallic microshell is 1-3 urn, preferably 1.5-2 ⁇ 5 iM, more preferably 1.8-2,3 urn, most preferably 2.
- the diameter of the upper end of the capillary tube must be smaller than the diameter of the metallic microshell so that the microshell can be attached to the capillary tube. 99% size is preferred.
- the step (A) comprises (i) potassium tetrachloroaurate hydrate, sodium tetrachloroaurate hydrate, chloroauric acid, hydrogen nucleus chloroplatinate (IV) hydrate.
- Silver nitrate a precursor of the first metallic material selected from two or more of these mixtures, and (ii) formaldehyde, ascorbic acid, hydroquinone, ammonium hydroxide, a first selected from two or more of these mixtures. It is preferably carried out by an electroless plating method using a reducing agent.
- the (A) step is preferable and, more preferably 5 to performing electroless plating repeated 2-20 times as to allow the active SERS or Raman effect in the metallic shell micro expression - 15 times, even more Preferably it is performed 8 to 12 times.
- the surface In order for the SERS activity or Raman effect to be manifested, the surface must be covered with a layer of gold property as a whole, and there must be a certain degree of roughness. If the amount of the electroless plated first metallic material layer is too small or too large, There may be problems that do not meet these conditions.
- the step (B) is preferably carried out by stretching the glass tube containing the metal wire.
- a capillary tube containing a conductive material therein has a structure in which the first metallic material is coated on the surface of the spherical template and at one end of the capillary tube An attached metallic microshell, (iii) a probe comprising a second metallic material positioned between said capillary and said metallic microshell; A probe is disclosed in which the conductive material and the first metallic material are electrically connected through the second metallic material.
- the template may be selected from polystyrene, poly (methyl methacrylate), silica, and two or more of these mixtures
- the gold monometallic material may be Au, Ag, Pt, Pd, Cu, may be selected from two or more of these mixtures
- the conductive material may be selected from Ru, Pt, Cu, Co, Ni, two or more of these mixtures
- the second metallic material is Au , Ag, Pt, Pd, Cu, may be selected from two or more of these combinations.
- the diameter of the metallic microshell may be 1-3, and the diameter of the one end of the capillary is preferably 50-99% of the diameter of the metallic microshell.
- the first metallic material is preferably coated on the spherical template so that SERS activity and Raman effect can be expressed in the metallic microshell.
- the present invention has newly proposed a method of fabricating an existing UME, which has been difficult to make reproducible by using a gold shell, which is already known in size, as an electrode.
- the present invention was able to obtain not only electrochemical information but also spectroscopy information simultaneously using the gold shell itself, the valley shell of the highest Raman.
- Raman spectroscopy is not only a Raman active material, even if the surface is not a Raman active material in combination with a system that can be approached very close to the z-axis, not only the product diffused through the surface reaction, but also the intermediate product that has moved and adsorbed on the surface that was not visible to SECM. It can be explored using conventional methods.
- FIG. 1 is a schematic diagram and scanning electron microscopy (SEM) image of the fabrication process of gold microshells capable of electrochemical and spectroscopic studies.
- FIG. 2 is a schematic diagram of a method of electrically connecting a gold microshell.
- FIG. 2 1 is an image of a glass micro capillary tube thinly sized to attach a microshell
- 2 is an image of a glass micro capillary tube coated with an inner wall of a conductive material
- 3 is a coated glass mark.
- 4 shows the electroless plating process for attaching the gold microshell to the end of the glass microcapillary tube completely without negative pressure. For schematic and image.
- FIG. 4 (a) is a result of confirming the electrochemical behavior as the ultrafine electrode
- FIG. 5 shows experimental schematics and results for proof as electrochemical and spectroscopic probes.
- FIG. 6 is a circuit diagram of a feedback system for precisely moving a probe along the z-axis as well as xy.
- the probe In order to obtain electrochemical and spectroscopic information, no matter what material the surface is, the probe itself is designed to obtain electrochemical and spectroscopic information.
- a gold shell with the maximum SERS effect by precisely electroless plating gold on polymer balls, a material suitable for electrochemical reaction and surface enhanced Raman Scattering (SERS) effects.
- the inner wall was attached to the end of a glass microcapillary tube coated with a conductive film to form a physical and electrical bond, allowing the gold shell to be used as an electrode.
- the micro gold shell probe can also be combined with a system capable of precisely z-axis scanning to obtain spectroscopic information of intermediate products that have moved and adhered to the reaction surface.
- micro-sized polymer balls were synthesized using electroless plating. Specifically, a colloidal gold nanoparticle (AuNPs, 2-3 nm in diameter) solution was added to the amine-terminated polystyrene beads (PS-N3 ⁇ 4, 1.8 ⁇ in diameter, 10% aqueous dispersion, Bangs Laboratories, Inc ⁇ ) and shaken for 2 hours. Gold nanoparticles were attached to the amine group.
- AuNPs colloidal gold nanoparticle
- the colloidal gold nanoparticle solution was then prepared using a 0.5 mL 1 M sodium hydroxide (Aldrich) and 1 mL tetrakis (hydroxymethyl) phosphonium chloride (THPC,> 80%, Aldrich) solution (12 uL of 80% THPC ( To a mixture of 0.067 ⁇ ol) in 1 mL water, add 2.0 mL (27 mmol) of 1% HAuCl 4 (gold (III) chloride trihydrate, Aldrich), and mix until brown. The week proceeded to manufacture.
- PS beads with AuNP were added to Au pooling solution, mixed, and a reducing agent, HCH0 (formaldehyde water solution, 37 wt.%, Aldrich) was added and reacted for 2 minutes. This electroless plating process was repeated 10 times to maximize the SERS.
- the Au plating solution used was added 15 mL of 1% HAuCl 4 aqueous solution to 250 mg 0.18 mmol forta carbonate until the yellow solution became clear.
- 1 (b) is an electron microscope image of a gold micro-shell that is manufactured in this manner and has a maximum Raman enhancement effect and is connected to both plated gold to maintain conductivity.
- the gold microshells thus made have to be electrically connected to use them as electrodes, which can be trapped using a laser-based micropipet puller device (Sutter Instruments Inc., P-2000).
- Borosilicate glass capillary GC 150-7.5 Harvard Apparatus
- the quality is ruthenium (Ru) and is much more conductive than the graphite (graphitic carbon) previously used for similar applications.
- the coating of such a metallic material on the inner wall of the glass microcapillary tube with high aspect ratio was possible only by atomic layer deposition (ALD) method.
- Atomic layer deposition of ruthenium was carried out using a GENI-MP1000 ALD system (ASM-Genitech, Inc.) at a deposition temperature of 300 ° C and a pressure of 3 Torr, and the precursor of Ru was converted to bis (ethylcyclopentadienyl) ruthenium. Used.
- the coated micro microcapillary tube coated with highly conductive Ru and Ru with excellent insulating glass is the most useful form for the electrical connection of gold microshells.
- a tram is performed using negative pressure.
- the end of the microcapillary tube must be of a size suitable for trapping the gold microshell (slightly smaller than the gold ball).
- the tram process was performed in the presence of a solution of 1% potassium tetrachloroaurate hydrate (STREM chemicals), the precursor of gold.
- the gold microshell probe trapped for the final procedure is moved to a solution of 0.25 M potassium ferrocyanide (K4 [Fe (CN) 6 ]) (Junsei chemical C, Ltd.), a reducing agent.
- K4 [Fe (CN) 6 ] potassium ferrocyanide
- the moving process is all in solution.
- the electrons from the reducing agent are transferred to the gold precursor inside the glass microcapillary with the gold shell as the electron bridge, and the gold precursor is reduced to gold at the gold shell surface.
- the reducing agent used is a reducing agent suitable for giving electrons to a gold shell having a suitable reducing power without only a by-product and producing only electrons.
- the completed probe was 5 mM ruthenium hexaamine chloride solution (sigma-aldrich).
- the reference electrode was used as the si-ver-si lver chloride electrode (BASi) and the auxiliary electrode (counter). electrode) Is a platinum wire (sigma-aldrich), and also 10 mM nitrobenzene thiol (NBT) in the probe to form a self-assembled monolayer (SAM), and then obtained the Raman spectroscopy spectrum to obtain the performance as a Raman probe Confirmed.
- the Raman equipment used was a homemade Ramboss micro-raman system spectrometer and a 20mW He / Ne laser (model LGK7665) with a wavelength of 632.8 nm was used as an excitation source.
- electrochemical and Raman spectroscopy could be used to attach NBT to the probe to confirm its performance as a probe capable of simultaneously, and the reduction process of NBT could be observed using Raman spectrum.
- Probe transfer systems can be used to obtain spectroscopic signals where desired, allowing for the rapid identification of various catalysts as well as imaging of intermediates on surfaces.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2011/002130 WO2012133961A1 (ko) | 2011-03-29 | 2011-03-29 | 전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 |
| KR1020137018502A KR101521113B1 (ko) | 2011-03-29 | 2011-03-29 | 전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 |
| US14/007,824 US9519006B2 (en) | 2011-03-29 | 2011-03-29 | Hybrid microprobe for electrochemical and SERS monitoring, scanning and feedback stimulation and the preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2011/002130 WO2012133961A1 (ko) | 2011-03-29 | 2011-03-29 | 전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012133961A1 true WO2012133961A1 (ko) | 2012-10-04 |
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| PCT/KR2011/002130 Ceased WO2012133961A1 (ko) | 2011-03-29 | 2011-03-29 | 전기화학 및 라만 분광학적 모니터링, 스캐닝 및 피드백 자극이 가능한 겸용 탐침 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9519006B2 (ko) |
| KR (1) | KR101521113B1 (ko) |
| WO (1) | WO2012133961A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12595466B2 (en) | 2020-03-06 | 2026-04-07 | Gevo, Inc. | NKR variants for increased production of isobutanol |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014112597B4 (de) | 2013-09-03 | 2016-10-06 | Electronics And Telecommunications Research Institute | Vibrationsvorrichtung und Verfahren zur Herstellung einer Vibrationsvorrichtung |
| CN103852461B (zh) * | 2014-03-28 | 2016-01-20 | 厦门大学 | 一种基于扫描探针显微镜的电化学针尖增强拉曼光谱仪器 |
| CN110952081B (zh) | 2018-09-27 | 2022-04-29 | Imec 非营利协会 | 用于形成互连部的方法和溶液 |
| KR20250054340A (ko) | 2023-10-16 | 2025-04-23 | 대한민국(방위사업청장) | 금속 나노 탐침의 구조적 정보를 예측하는 장치 및 방법 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006090715A (ja) * | 2004-09-21 | 2006-04-06 | Sii Nanotechnology Inc | 散乱型近接場顕微鏡およびその測定方法 |
| KR20060058085A (ko) * | 2003-07-08 | 2006-05-29 | 큐나노 에이비 | 나노위스커를 통합하는 프로브 구조체, 그 제조 방법, 및나노위스커를 형성하는 방법 |
| KR20070021711A (ko) * | 2005-08-19 | 2007-02-23 | 한국기계연구원 | 나노 팁 및 이의 제조방법 |
| KR20090026933A (ko) * | 2007-09-11 | 2009-03-16 | (주)티에프에스글로발 | 탐침의 강도를 가변하는 장치와 이를 이용한 전기기계장치및 탐침의 강도를 가변하는 방법 |
| JP2010066140A (ja) * | 2008-09-11 | 2010-03-25 | Jeol Ltd | 走査プローブ顕微鏡 |
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| KR100466157B1 (ko) * | 2001-11-21 | 2005-01-14 | 재단법인서울대학교산학협력재단 | 원자간력 현미경용 단일/멀티 캔틸레버 탐침 및 그의제조방법 |
| KR100597067B1 (ko) * | 2003-11-20 | 2006-07-07 | 한국기계연구원 | 탐침 팁에의 나노물질 조립장치 및 이 장치가 적용된주사탐침 현미경 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20060058085A (ko) * | 2003-07-08 | 2006-05-29 | 큐나노 에이비 | 나노위스커를 통합하는 프로브 구조체, 그 제조 방법, 및나노위스커를 형성하는 방법 |
| JP2006090715A (ja) * | 2004-09-21 | 2006-04-06 | Sii Nanotechnology Inc | 散乱型近接場顕微鏡およびその測定方法 |
| KR20070021711A (ko) * | 2005-08-19 | 2007-02-23 | 한국기계연구원 | 나노 팁 및 이의 제조방법 |
| KR20090026933A (ko) * | 2007-09-11 | 2009-03-16 | (주)티에프에스글로발 | 탐침의 강도를 가변하는 장치와 이를 이용한 전기기계장치및 탐침의 강도를 가변하는 방법 |
| JP2010066140A (ja) * | 2008-09-11 | 2010-03-25 | Jeol Ltd | 走査プローブ顕微鏡 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US12595466B2 (en) | 2020-03-06 | 2026-04-07 | Gevo, Inc. | NKR variants for increased production of isobutanol |
Also Published As
| Publication number | Publication date |
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| KR101521113B1 (ko) | 2015-05-19 |
| US9519006B2 (en) | 2016-12-13 |
| US20140014507A1 (en) | 2014-01-16 |
| KR20130105708A (ko) | 2013-09-25 |
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