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38 results about "Molecular junction" patented technology
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Molecular Junctions. Nanostructure-based solar- and fuel cells, both organic and inorganic, hold promise for efficiently and cheaply converting solar energy into forms convenient for storage and transportation.
Molecular-junction-nanowire-crossbar-based inverter, latch, and flip-flop circuits, and more complex circuits composed, in part, from molecular-junction-nanowire-crossbar-based inverter, latch, and flip-flop circuits
InactiveUS6919740B2High densityLittle powerLogic circuits characterised by logic functionNanoinformaticsCrossbar switchNanowire
Methods for implementing familiar electronic circuits at nanoscale sizes using molecular-junction-nanowire crossbars, and nanoscale electronic circuits produced by the methods. In one embodiment of the present invention, a 3-state inverter is implemented. In a second embodiment of the present invention, two 3-state inverter circuits are combined to produce a transparent latch. The 3-state inverter circuit and transparent-latch circuit can then be used as a basis for constructing additional circuitry, including master / slave flip-flops, a transparent latch with asynchronous preset, a transparent latch with asynchronous clear, and a master / slave flip-flop with asynchronous preset. 3-state inverters can thus be used to compose latches and flip-flops, and latches and flip-flops can be used, along with additional Boolean circuitry, to compose a wide variety of useful, state-maintaining circuits, all implementable within molecular-junction-nanowire crossbars by selectively configuring junctions within the molecular-junction-nanowire crossbars.
Owner:HEWLETT PACKARD DEV CO LP
Protein transistor device
ActiveUS20140048776A1Improve bindingGood reproducibilityNanoinformaticsSolid-state devicesProtein moleculesProtein insertion
The present invention discloses a protein transistor device, wherein an antibody molecule (antibody-antigen) is bonded to at least two gold nanoparticles in a high reproducible self-assembly way to form molecular junctions, and wherein the two gold nanoparticles are respectively joined to a drain and a source. The protein transistor device can be controlled to regulate current via applying a bias to the gate. The conformational change of the protein molecule will cause the variation of the charge transport characteristics of the protein transistor device. The protein transistor device can be further controlled by different optical fields via conjugating a quantum dot to the molecular junctions. Therefore, the present invention has diversified applications.
Owner:ALLBIO LIFE CO LTD
Molecular-junction-nanowire-crossbar-based neural network
InactiveUS7359888B2Easy to getTransistorSemiconductor/solid-state device detailsNanowireCross connection
A method for configuring nanoscale neural network circuits using molecular-junction-nanowire crossbars, and nanoscale neural networks produced by this method. Summing of weighted inputs within a neural-network node is implemented using variable-resistance resistors selectively configured at molecular-junction-nanowire-crossbar junctions. Thresholding functions for neural network nodes are implemented using pFET and nFET components selectively configured at molecular-junction-nanowire-crossbar junctions to provide an inverter. The output of one level of neural network nodes is directed, through selectively configured connections, to the resistor elements of a second level of neural network nodes via circuits created in the molecular-junction-nanowire crossbar. An arbitrary number of inputs, outputs, neural network node levels, nodes, weighting functions, and thresholding functions for any desired neural network are readily obtained by the methods of the present invention.
Owner:HEWLETT-PACKARD ENTERPRISE DEV LP
Molecular-wire-based restorative multiplexer, and method for constructing a multiplexer based on a configurable, molecular-junction-nanowire crossbar
InactiveUS6880146B2High densityLittle powerNanoinformaticsTime-division multiplexNanowireMultiplexer
A method for configuring any m-to-n multiplexer from a molecular-junction-nanowire crossbar, and m-to-n multiplexers configured according to the disclosed method. In the described embodiments, a complementary / symmetry molecular-junction-nanowire crossbar is employed, with input nanowire signal lines intersecting certain relatively high-voltage narrow nanowires via nFET devices and intersecting grounded nanowires via pFET devices. The relatively high-voltage and grounded nanowires are, in turn, selectively coupled to one or more output nanowire signal lines.
Owner:VALTRUS INNOVATIONS LTD +1
Molecular linkers suitable for crystallization and structural analysis of molecules of interest, method of using same, and methods of purifying g protein-coupled receptors
InactiveUS20060128944A1Promote crystallizationImprove purification effectPolycrystalline material growthFrom normal temperature solutionsHeterologousStructure analysis
A method of crystallizing a molecule-of-interest is disclosed. The method comprises (a) contacting molecules of the molecule-of-interest with at least one type of heterologous molecular linker being capable of interlinking at least two molecules of said molecule-of-interest to thereby form a crystallizable molecular complex of defined geometry; and (b) subjecting said crystallizable molecular complex to crystallization-inducing conditions, thereby generating the crystal containing said molecule-of-interest.
Owner:YEDA RES & DEV CO LTD
Rare Earth-Doped Up-Conversion Nanoparticles for Therapeutic and Diagnostic Applications
InactiveUS20130115295A1Reduce deliveryIncrease surface areaDrug photocleavageSpecial deliveryPhotosensitizerNanoparticle
This invention provides a composition matter comprising rare earth-doped up-conversion nanoparticles (UCNPs) encapsulated with a silica shell. In one embodiment, a photosensitizer is incorporated into the silica shell. In another embodiment, the composition further comprises a targeting molecule. In still another embodiment, a small interfering RNA (siRNA) molecule is also attached to the silica shell with the targeting molecule. The invention further provides methods for synthesizing such compositions and for using them in therapeutic and diagnostic applications. These applications use infrared or near infrared activation to excite the UCNPs.
Owner:WANG QIANG +2
Apparatus and method for simultaneously measuring characteristics of molecular junctions and refractive index of buffer solution
ActiveUS20150253243A1Accurately determineLow production costPolarisation-affecting propertiesPhase-affecting property measurementsRefractive indexPrism
An apparatus and method for simultaneously measuring, in an immersion microchannel environment, the characteristics of molecular junctions such as a low-molecular-weight biomaterial and the like and the refractive index of a buffer solution by using ellipsometry. Specifically, disclosed is an apparatus for simultaneously measuring, with high sensitivity, the change in refractive index of a buffer solution and the junction dynamic characteristics of a biomaterial by allowing polarized incident light to be received at a biomaterial adsorption layer, which is formed on a substrate such as a semiconductor and the like, so as to meet an anti-reflection condition of a P-wave by using a prism structure and a microchannel; and a measurement method using the same.
Owner:KOREA RES INST OF STANDARDS & SCI
Method for preparing molecular junction by polydimethylsiloxane stencil printing
InactiveCN102097588AAvoid serious uncertaintyLow costDecorative surface effectsSolid-state devicesStencil printingMolecular junction
The invention provides a method for preparing a molecular junction by polydimethylsiloxane stencil printing, which comprises the following steps: cleaning a Si substrate, and then, carrying out photoetching; preparing a lower electrode; preparing a molecular self-assembly film on the surface of the Au lower electrode; preparing a polydimethylsiloxane stencil; preparing a polydimethylsiloxane seal; preparing an upper electrode; and then, carrying out upper electrode printing to obtain a crossed molecular junction. The invention provides a non-destructive preparation method of an upper electrode of a crossed molecular junction of an organic molecular layer, thereby avoiding the defects that when an Au film is directly deposited on the organic molecular layer, the upper electrode and the lower electrode are in short circuit because a small amount of metal particles penetrate into pores among molecules or ablative degradation is caused because of the evaporated and deposited heat. The method provided by the invention effectively avoids the serious uncertainty among metal / molecule contact interfaces.
Owner:NORTHEASTERN UNIV
Magnetically directed self-assembly of molecular electronic junctions
A device having a substrate, a pair of ferromagnetic leads on a surface of the substrate, laterally separated by a gap, and one or more ferromagnetic microparticles comprising a conductive coating at least partially within the gap. The conductive coating forms at least part of an electrical connection between the leads. A molecular junction may connect the leads to the microparticle.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Magnetically directed self-assembly of molecular electronic junctions comprising conductively coated ferromagnetic microparticles
A device having a substrate, a pair of ferromagnetic leads on a surface of the substrate, laterally separated by a gap, and one or more ferromagnetic microparticles comprising a conductive coating at least partially within the gap. The conductive coating forms at least part of an electrical connection between the leads. A molecular junction may connect the leads to the microparticle.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Preparation method of addressable nano molecular junction
InactiveCN102903848AGuaranteed addressabilityAvoid pollutionNanoinformaticsSolid-state devicesMicro nanoInsulation layer
The invention discloses a preparation method of an addressable nano molecular junction, belonging to the field of micro machining of nano materials and testing of nano electronic devices. The preparation method comprises the steps of: firstly, washing a piezoelectric ceramic substrate; preparing an insulation layer film on the piezoelectric ceramic substrate and obtaining a micro nano strip-shaped bulge on the middle; preparing a narrow-neck-shaped Au electrode film layer on the insulation layer film; placing the piezoelectric ceramic substrate in a vacuum chamber, respectively welding leads on two sides of the piezoelectric ceramic substrate and leading out a vacuum chamber; electrifying the piezoelectric ceramic substrate to ensure that the Au electrode film layer is broken to obtain a metal electrode pair with a nano gap; and finally, filling an organic molecular material in the nano electrode gap to obtain the addressable nano molecular junction. According to the invention, the gap controllable nano Au electrode pair is obtained through regulating bias voltages and electrifying time of two ends of the piezoelectric ceramic substrate, thus pollution and thermally induced ablation on a metal molecular interface when electrodes deposit on a molecular layer are avoided through molecule self-assembly in the gap.
Owner:NORTHEASTERN UNIV
Carbon nanotube single molecular junction preparation method with high success rate
InactiveCN106586952ASmall attenuation factorEfficient connectionSpecific nanostructure formationMaterial nanotechnologyOrganic moleculesMolecular junction
The invention discloses a method of precisely stretching a carbon nanotube, and a method and process flow of efficiently constructing a single molecular junction by mean of a carbon nanotube. The carbon nanotube single molecular junction preparation method with a high success rate is implemented through a micro nano processing correlation technique and a mechanical controllable breakage junction technique. The carbon nanotube single molecular junction preparation method includes the steps: through a series of micro nano processing flows, making a stable single wall carbon nanotube chip; disposing the single wall carbon nanotube chip on a three-point bending device; continuously bending the chip substrate to break the single wall carbon nanotube so as to form a gap-controllable electrode pair; and forming a single wall carbon nanotube single molecule junction by adding organic molecules in the gap. The carbon nanotube single molecular junction preparation method can accurately regulate and control the size of the gap to match various molecule lengths, thus being able to realize high production capacity production of single wall carbon nanotube single molecule junctions, laying the foundation for realizing molecule devices with high performance, and having a relatively higher reference value for development of molecular electronics.
Owner:NANKAI UNIV
Molecular Assemblies and Multilayer Films for Photocurrent and Catalysis
InactiveUS20150075621A1Large specific surface areaReduce assemblyLight-sensitive devicesFinal product manufactureChemical reactionPhotoelectrochemical cell
Some embodiments of the present invention provide an assembly for harvesting light, comprising a first molecule joined to a second molecule through mutual coordination to an ion, and the first molecule is linked to a metal oxide surface having a high surface area. Such assemblies can form multilayer films, in other embodiments. The assemblies and multilayer films can harvest light to do useful chemistry, such as in a dye-sensitized photoelectrochemical cell, or can convert the harvested light into electricity, such as in a dye-sensitized solar cell.
Owner:THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
Graphene electrode chip for mechanically controllable break junction (MCBJ) technique
ActiveCN107179343AAvoid disadvantagesImprove stabilityMaterial electrochemical variablesEpoxyMolecular junction
The invention discloses a graphene electrode chip for a mechanically controllable break junction (MCBJ) technique, and relates to a graphene electrode chip. The graphene electrode chip comprises a stainless steel sheet, graphene metal wires and epoxy resin, wherein the stainless steel sheet is used for preparing a substrate of a graphene chip; the graphene metal wires are mounted above the stainless steel sheet in a hanging manner and are fixed through the epoxy resin. A preparation method of the graphene electrode chip comprises the following steps of 1), preparing a stainless steel substrate; 2), preparing the epoxy resin; 3), coating the epoxy resin; 4), constructing a graphene electrode on one side; 5), curing the epoxy resin; 6), constructing the graphene electrode on the other side; 7), dropwise coating the epoxy resin; 8), curing the epoxy resin. The novel graphene chip applicable to an MCBJ is made by adopting the graphene metal wires which are relatively low in price and a simple stainless steel sheet structure; some defects of a metal electrode are successfully overcome; the graphene electrode chip has advantages of being low in cost, simple and convenient to operateion and further high in the stability of a molecular junction stability, and the like. The graphene electrode chip can be prepared in a common chemical laboratory, and has favorable generality.
Owner:XIAMEN UNIV
Single-molecular-junction logic gate
InactiveCN104202039AIncrease speedImprove responsivenessLogic circuits using elementary logic circuit componentsElectrical controlLaser light
The invention discloses a single-molecular-junction logic gate. The single-molecular-junction logic gate comprises a logic gate single molecular junction, a positive electrode, a negative electrode, a laser device and a molecular junction logic gate readout device, wherein the two ends of the logic gate single molecular junction are electrically connected with the positive electrode and the negative electrode respectively; the laser device is arranged over the electrodes; the molecular junction logic gate readout device is arranged on one side of the logic gate single molecular junction, and is arranged close to the logic gate single molecular junction; the emitting end of the laser device points to the logic gate single molecular junction; and laser light emitted by the laser device is laser light of 633 nanometers. Logic operation of the micro-scale logic gate single molecular junction under an electrical control condition is realized, and the logic gate single molecular junction has extremely high logic operating rate and response capability; and meanwhile, real single molecular operation capability is provided by the logic gate single molecular junction, so that an important foundation is laid for the replacement of a silicon semiconductor technology.
Owner:SUZHOU HUALAIDE ELECTRONICS TECH
STM-BJ-based monomolecular junction thermoelectric potential measurement method and equipment thereof
ActiveCN111289559ARealize measurementImprove measurement efficiencyMaterial heat developmentVoltage measurements onlyThermoelectric materialsTemperature control
The invention discloses an STM-BJ-based monomolecular junction thermoelectric potential measurement method and STM-BJ-based monomolecular junction thermoelectric potential measurement equipment. A Seebeck coefficient of a molecular junction is obtained by acquiring a single molecule, verifying the single molecule, measuring a thermal voltage, verifying the single molecule, repeatedly acquiring a plurality of pieces of data, and then carrying out corresponding statistics and calculation. A stable and easily-adjusted heat source is provided for a substrate based on an STM-BJ technology, so thatthe temperature difference is constructed at the two ends of the molecular junction, an independent voltage amplifier is introduced to measure the electromotive force generated by the temperature difference after the molecular junction is formed, and therefore measurement of the thermoelectric potential of the monomolecular junction is achieved. Compared with an MCBJ technology and an STM-BJ needle tip temperature control technology, the research means has the advantages of being simple, efficient, wide in adjustable range, high in error-tolerant rate and the like, the measurement efficiency of the monomolecular junction thermoelectric potential is greatly improved, research and development of a novel organic thermoelectric material are promoted, and powerful assistance is provided for thesociety where the energy urgently needs to be changed.
Owner:XIAMEN UNIV
Composite material, preparation method thereof and quantum dot light-emitting diode
ActiveCN113122247AImprove performanceImprove luminous performanceMaterial nanotechnologySolid-state devicesMetallic bondingMolecular junction
The invention discloses a composite material, a preparation method thereof and a quantum dot light-emitting diode. The composite material comprises carbon quantum dots, organic molecule connectors and metal nano particles, and the surfaces of the carbon quantum dots are combined with hydroxyl groups; and one ends of the organic molecule connectors are combined with hydroxyl groups of the carbon quantum dots through carboxyl groups, and the other ends of the organic molecule connectors are combined with the metal nano particles through functional groups with a metal bonding property. On the premise of keeping the excellent performance of the carbon quantum dots, the luminescence performance of the carbon quantum dots can be enhanced by utilizing surface plasma resonance formed on the surfaces of the carbon quantum dots by the metal nano particles. The carbon quantum dots have very excellent conductivity by utilizing the good conductivity of the metal nano particles. The composite material disclosed by the invention is excellent in film-forming property, capable of effectively inhibiting the phenomenon of carbon quantum dot solid-state fluorescence quenching, good in bio-compatibility, low in preparation cost and easy to prepare.
Owner:TCL CORPORATION
Metal ion dynamic detection and regulation method based on Raman spectrum
InactiveCN112525877AStable manufacturingGood properties of nano electrodeRaman scatteringCu2 ionsNanoparticle
The invention discloses a metal ion dynamic detection and regulation method based on Raman spectroscopy, and relates to a dynamic Raman spectroscopy measurement method. The method comprises the following specific steps of modifying p-carboxyl thiophenol molecules with Raman signals at the tip of a gold electrode and on the surfaces of nanoparticles; establishing a single-molecule Raman signal detection system; when exciting light irradiates a sample, a Raman signal being generated, copper ions being added into the system, and the formation and disappearance of copper ion chelating bonds beingdetected by dynamically detecting the change of a Raman spectrum. The method is advantaged in that a bias voltage on the gold electrode is adjusted, and the change of the intensity of a p-carboxyl thiophenol Raman characteristic peak is detected so that the vibration condition of each bond in the molecular junction is researched; various metal ions such as copper ions and the like can be detectedthrough chelation; the method can be used for researching the strength of the chelating bond effect through voltage regulation, and is wide in application range, high in functionalization, visual in data and simple to operate.
Owner:深圳市新零壹科技有限公司
Ultra-thin plasmonic solar cells, methods for their manufacture and use
An ultra-thin and highly transparent wafer-type plasmonic solar cell comprises a layer of a conductive transparent substrate, a layer of an n-type semiconductor, a layer made of metal nanoparticles selected from the group consisting of copper, gold or silver, and a layer made of a p-type semiconductor, wherein the substrate, n-type semiconductor, metal nanoparticles and p-type semiconductor respectively are linked by covalent bonds by means of one or more molecular linker / linkers. A method for producing said plasmonic solar cell by self-assembly is disclosed.
Owner:PEAFOWL SOLAR POWER AB
Method for preparing molecular junction by polydimethylsiloxane stencil printing
InactiveCN102097588BAvoid serious uncertaintyLow costDecorative surface effectsSolid-state devicesStencil printingMolecular junction
The invention provides a method for preparing a molecular junction by polydimethylsiloxane stencil printing, which comprises the following steps: cleaning a Si substrate, and then, carrying out photoetching; preparing a lower electrode; preparing a molecular self-assembly film on the surface of the Au lower electrode; preparing a polydimethylsiloxane stencil; preparing a polydimethylsiloxane seal; preparing an upper electrode; and then, carrying out upper electrode printing to obtain a crossed molecular junction. The invention provides a non-destructive preparation method of an upper electrode of a crossed molecular junction of an organic molecular layer, thereby avoiding the defects that when an Au film is directly deposited on the organic molecular layer, the upper electrode and the lower electrode are in short circuit because a small amount of metal particles penetrate into pores among molecules or ablative degradation is caused because of the evaporated and deposited heat. The method provided by the invention effectively avoids the serious uncertainty among metal / molecule contact interfaces.
Owner:NORTHEASTERN UNIV LIAONING
Method for detecting small organic biological molecules with graphene electrode-based molecular device
InactiveCN102411019BRealize detectionImprove stabilityMaterial electrochemical variablesInterference factorA-DNA
Owner:PEKING UNIV
Protein transistor device
ActiveUS8697469B2Improve bindingGood reproducibilityNanoinformaticsSolid-state devicesNanoparticleProtein molecules
The present invention discloses a protein transistor device, wherein an antibody molecule (antibody-antigen) is bonded to at least two gold nanoparticles in a high reproducible self-assembly way to form molecular junctions, and wherein the two gold nanoparticles are respectively joined to a drain and a source. The protein transistor device can be controlled to regulate current via applying a bias to the gate. The conformational change of the protein molecule will cause the variation of the charge transport characteristics of the protein transistor device. The protein transistor device can be further controlled by different optical fields via conjugating a quantum dot to the molecular junctions. Therefore, the present invention has diversified applications.
Owner:ALLBIO LIFE CO LTD
A method for measuring reaction kinetics based on single-molecule electrical detection
The invention discloses a reaction kinetics measurement method based on single molecule electrical detection, and involves a chemical reaction kinetics measurement method. The method comprises the following steps: mixing molecular solid and a solvent, and obtaining a molecular solution; placing a chip under a microscope, aligning a blade with a metal wire, firstly conducting cross-cutting, and then cutting the metal wire through a tip of the blade to get the chip; installing the chip, a reaction pool, an O-ring and a seal cover; opening a motor, passing the blade to an incision through the upper top of the motor, and fracturing to form a nano-gap; conducting an in situ test, data record and data analysis, when the metal atoms point contact is disconnected and an electrode is formed; and conducting statistics on the distance between the step and the end in a conductance-distance curve, obtaining a column-like statistical chart, providing another dimension information for an electrical measurement of a molecular junction by the conductance-distance curve, observing changes in conductance in a BJ process when the molecular junction is stretched and closed with the electrode pair, obtaining the interval size opened by the electrode pair, and ultimately inferring the evolution information that the molecular junction conductance changes with the distance.
Owner:XIAMEN UNIV
Anthryl molecular junction with photoelectric detection function and preparation method and application thereof
PendingCN114324984AWith photoswitchable conductivityGood Optical Switching ResponseGroup 8/9/10/18 element organic compoundsVacuum evaporation coatingDimerEthylic acid
The invention belongs to the technical field of molecular electronics, and discloses an anthryl molecular junction with a photoelectric detection function and a preparation method and application thereof. In the preparation process, the axial matching capacity is considered, and a rhodium acetate dimer complex [Rh2 (O2CCR3) 4] (R = H, F and CH3) is used as strong Lewis acid to react with a pyridyl bidentate organic ligand (L); meanwhile, photosensitive organic molecules are introduced into an Rh2-L molecular skeleton. A rhodium acetate dimer complex [Rh2 (O2CCR3) 4] complex and an organic ligand can easily form a stable adduct [Rh2 (mu-O2CCR3) 4L2], and by utilizing the advantage, the supramolecular junction with a photosensitive structural unit is successfully constructed on a gold electrode by adopting a step-by-step preparation method.
Owner:GUANGDONG UNIV OF TECH
Mercaptobenzene functionalized graphene/copper composite heat-conducting coating and preparation method
InactiveCN113881987ALower interface thermal resistanceReduce mismatchMolecular junctionElectrochemistry
The invention relates to a mercaptobenzene functionalized graphene / copper composite heat-conducting coating and a preparation method. The synthesis general formula is TP-Gr-Cu, functionalized graphene TP-Gr and nano-copper are chemically connected through a mercaptobenzene molecular junction, sulfur atoms in the mercaptobenzene molecular junction and the nano-copper form a strong S-Cu covalent bond through electron tunneling, and an electron tunneling heat conduction path is constructed so that electrons can be freely conducted. The preparation method comprises the following steps of firstly, preparing the mercaptobenzene functionalized graphene, and then preparing the mercaptobenzene functionalized graphene / copper composite heat-conducting coating on a metal copper substrate through a pulse electrochemical co-deposition method. A novel graphene / metal composite heat conduction coating electron tunneling heat conduction path is constructed, chemical connection of graphene and nano-copper through mercaptobenzene molecular junctions is successfully established, the deposited mercaptobenzene functionalized graphene is compactly attached to the copper substrate, and the function of radiation heat dissipation of a molecular fan is achieved. A graphene / copper composite material has high heat conductivity coefficient and high heat conductivity; and compared with a composite material in which pi electrons participate in heat transfer, the heat-conducting coefficient is higher.
Owner:SHAOYANG UNIV
Modulating electron transfer dynamics at hybrid interfaces via self-assembled multilayers
ActiveUS10916381B2Light-sensitive devicesSolid-state devicesChemical physicsPhotoelectrochemical cell
Owner:FLORIDA STATE UNIV RES FOUND INC
Preparation method of addressable nano molecular junction
InactiveCN102903848BGuaranteed addressabilityAvoid pollutionNanoinformaticsSolid-state devicesMicro nanoInsulation layer
The invention discloses a preparation method of an addressable nano molecular junction, belonging to the field of micro machining of nano materials and testing of nano electronic devices. The preparation method comprises the steps of: firstly, washing a piezoelectric ceramic substrate; preparing an insulation layer film on the piezoelectric ceramic substrate and obtaining a micro nano strip-shaped bulge on the middle; preparing a narrow-neck-shaped Au electrode film layer on the insulation layer film; placing the piezoelectric ceramic substrate in a vacuum chamber, respectively welding leads on two sides of the piezoelectric ceramic substrate and leading out a vacuum chamber; electrifying the piezoelectric ceramic substrate to ensure that the Au electrode film layer is broken to obtain a metal electrode pair with a nano gap; and finally, filling an organic molecular material in the nano electrode gap to obtain the addressable nano molecular junction. According to the invention, the gap controllable nano Au electrode pair is obtained through regulating bias voltages and electrifying time of two ends of the piezoelectric ceramic substrate, thus pollution and thermally induced ablation on a metal molecular interface when electrodes deposit on a molecular layer are avoided through molecule self-assembly in the gap.
Owner:NORTHEASTERN UNIV LIAONING
Metallocenyl dendrimer, organic memory device using the same and fabrication method of the organic memory device
InactiveUS20080111124A1Improve operating characteristicsShort switching timeWave amplification devicesGroup 8/9/10/18 element organic compoundsDendrimerRedox
Disclosed are a metallocenyl dendrimer, an organic memory device using the metallocenyl dendrimer and a method for fabricating the organic memory device. The metallocenyl dendrimer may be composed of a dendrimer and metallocenes as redox species linked to the dendrimer. The organic memory device may possess the advantages of shorter switching time, decreased operating voltage, decreased fabrication costs and increased reliability. Based on these advantages, the organic memory device may be used as a highly integrated, large-capacity memory device.
Owner:SAMSUNG ELECTRONICS CO LTD
Mechanically controllable break junction device with multilevel control electrode spacing continuously changed as well as method
ActiveCN110455865AOvercome the jitter problemSmooth and continuous driveMaterial analysis by electric/magnetic meansHydraulic cylinderEngineering
The invention discloses a mechanically controllable break junction (MCBJ) device with multilevel control electrode spacing continuously changed as well as a method, applied to the field of molecular electronics. The mechanically controllable break junction device mainly comprises the following devices: a hydraulic cylinder, a piston push rod, an X axis linear displacement platform, a multichannelhydraulic valve, a support, a motor, a spiral push rod, a steel disc, a strut and a base, the hydraulic cylinder is divided into five hydraulic cylinders with different cross-sectional areas, a hydraulic cylinder with the largest cross-sectional area is pushed by moving pistons in four hydraulic cylinders with smaller cross-sectional areas and closing the valve, large cross-sectional area and small displacement are controlled by small cross-sectional area and large displacement, and high thrust is controlled by low thrust. When the mechanically controllable break junction device disclosed by the invention is acted on a nano break junction device chip, sub-femtometer-level precision control on distance between two electrodes can be realized, so that a molecular junction is precisely constructed. The mechanically controllable break junction device disclosed by the invention is a novel mechanically controllable break junction device and has longer displacement and more precise distance control compared with the traditional break junction device.
Owner:NANKAI UNIV
A single-molecule junction thermoelectric potential measurement method and equipment based on stm-bj
ActiveCN111289559BRealize measurementImprove measurement efficiencyMaterial heat developmentVoltage measurements onlyThermoelectric materialsTemperature control
The invention discloses an STM-BJ-based monomolecular junction thermoelectric potential measurement method and STM-BJ-based monomolecular junction thermoelectric potential measurement equipment. A Seebeck coefficient of a molecular junction is obtained by acquiring a single molecule, verifying the single molecule, measuring a thermal voltage, verifying the single molecule, repeatedly acquiring a plurality of pieces of data, and then carrying out corresponding statistics and calculation. A stable and easily-adjusted heat source is provided for a substrate based on an STM-BJ technology, so thatthe temperature difference is constructed at the two ends of the molecular junction, an independent voltage amplifier is introduced to measure the electromotive force generated by the temperature difference after the molecular junction is formed, and therefore measurement of the thermoelectric potential of the monomolecular junction is achieved. Compared with an MCBJ technology and an STM-BJ needle tip temperature control technology, the research means has the advantages of being simple, efficient, wide in adjustable range, high in error-tolerant rate and the like, the measurement efficiency of the monomolecular junction thermoelectric potential is greatly improved, research and development of a novel organic thermoelectric material are promoted, and powerful assistance is provided for thesociety where the energy urgently needs to be changed.
Owner:XIAMEN UNIV
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