180results about How to "Facilitates electron transport" patented technology

The present invention relates to novel electroactive energy storing polyacetylene-co-polysulfur (PAS) materials of general formula (C2Sx)n wherein x is greater than 1 to about 100, and n is equal to or greater than 2. This invention also relates to novel rechargeable electrochemical cells containing positive electrode materials comprised of said polyacetylene-co-polysulfur materials with improved storage capacity and cycle life at ambient and sub-ambient temperatures.

The invention provides a silicon-carbon composite material of a closed cage structure and a preparation method of the silicon-carbon composite material of the closed cage structure. The silicon-carboncomposite material of the closed cage structure is a hollow filled structure material in a closed cage form; the core of the hollow filled structure material is a silicon material-filled porous carbon material; the porous carbon material is filled with a silicon material; the silicon material has the void content of 50-95% in the porous carbon material; and a carbon material coats the outside ofthe silicon material-filled porous carbon material and the specific component of the carbon material is (SiOx)yC, wherein x is smaller than or equal to 2 and greater than or equal to 0 and y is smaller than or equal to 1 and greater than 0. When the silicon-carbon composite material of the closed cage structure is used as a negative electrode of a battery, contact of the silicon material and an electrolyte is isolated, the life of the battery is prolonged and the capacity performance and the cycle performance of the battery are improved.

A method is provided for synthesizing a metal-doped transition metal hexacyanoferrate (TMHCF) battery electrode. The method prepares a first solution of A_xFe(CN)₆ and Fe(CN)₆, where A cations may be alkali or alkaline-earth cations. The method adds the first solution to a second solution containing M-ions and M′-ions. M is a transition metal, and M′ is a metal dopant. Subsequent to stirring, the mixture is precipitated to form A_xM_cM′_dFe_z(CN)_n.mH₂O particles. The A_xM_cM′_dFe_z(CN)_n.mH₂O particles have a framework and interstitial spaces in the framework, where M and M′ occupy positions in the framework. Alternatively, the method prepares A_aA′_bM_yFe_z(CN)_n.mH₂O particles. A and A′ occupy interstitial spaces in the A_aA′_bM_yFe_z(CN)_n.mH₂O particle framework. A metal-doped TMHCF electrode is also provided.

The invention relates to a preparation method of a Pt nanometer particle-modified Cu nanowire array electrode and a use of the Pt nanometer particle-modified Cu nanowire array electrode in an enzyme-free glucose sensor. The preparation method comprises spraying gold to a porous AAO template, fixing Cu foil to the surface of the electrode with a sprayed gold layer through a conductive adhesive, sealing the surrounding parts of a template through insulative silicone rubber, constructing a three-electrode system of the template as a work electrode, a saturated calomel electrode as a reference electrode and a platinum electrode as a counter electrode, putting the three-electrode system into CuSO4 and H2SO4 electrolyte, carrying out constant current electro-deposition, then carrying out immersion in a NaOH solution to remove the AAO template so that a Cu nanowire array structure is obtained, carrying out repeated cleaning through distilled water and carrying out constant potential deposition in H2PtCl6 and H2SO4 electrolyte to obtain the Pt nanometer particle-modified Cu nanowire array electrode. The Pt nanometer particle-modified Cu nanowire array electrode is used for an enzyme-free glucose sensor.

The invention discloses a Li-Se battery. The anode material of the Li-Se battery is elemental selenium, the elemental selenium can be porous elemental selenium microspheres, a selenium nano-wire or a selenium nano-ribbon. The invention also provides a thermal evaporation method for growing of the anode material. The Li-Se battery prepared by the method provided by the invention has favorable stability, and the specific capacitance of the battery is 900 mAh/g after the battery is repeatedly charged and discharged 100 times. The Li-Se battery disclosed by the invention can effectively solve the problems of low capacitance, complexity of synthesis, expensive cost, undesirable circulation, and poor electrical stability of the existing lithium ion battery, and has the advantages of simpleness in battery package, high efficiency, rapidness, low cost of raw materials and high practical applicability; and moreover, the Li-Se battery is suitable for being popularized.

The system includes an array of transducers that simultaneously senses multiple intralumenal pressures, a data acquisition module that acquires and stores samples of the measured pressures, software routines for signal analysis, a software module for multi-dimensional data display presentations, and a software module to perform pattern recognition on the acquired data set to identify potential maladies that may be indicated by the analysis. The transduction elements are cylindrical segments that deform according to the circumferential pressures encountered. Distributing a quantity of these sensor segments at desired locations along a flexible support structure and providing a flexible sheath over the entire length forms the sensor array. Measuring the sensor deformation provides an electrical analog of the pressure causing the deformation. Acquiring these measurements in a suitable data acquisition and processing unit, including a display, printing, and plotting capability, completes the hardware elements. Integrated software modules complete the system.

The invention discloses a silver nanowire electrode-based efficient flexible quantum dot light-emitting diode and preparation thereof. The silver nanowire transparent electrode-based flexible quantumdot light-emitting diode is characterized by comprising a flexible transparent cathode, an electron transport layer, a quantum dot light-emitting layer, a hole transport layer, a hole injection layerand a metal anode from bottom to top, wherein the flexible transparent cathode is a composite electrode formed by embedding silver nanowires into a flexible substrate. According to the silver nanowireelectrode-based efficient flexible quantum dot light-emitting diode, the smooth surface of a nano zinc oxide layer is obtained through improving the key parameters and conditions of a corresponding device preparation process and modifying the surface of the electrode by using nano zinc oxide, so that the electron transport property of the nano zinc oxide is ensured, the effect, of enhancing the light extraction efficiency of the flexible quantum dot light-emitting diode, of the silver nanowire flexible transparent electrode is brought into fully play, and the light-emitting efficiency of theflexible quantum dot light-emitting diode is effectively improved to the world leading level.

The present invention relates to novel electroactive energy storing organic polymers, which organic polymers, in their oxidized or fully charged state, comprise polysulfur components. Also provided are electrochemical cells comprising composite cathodes utilizing such polymers, and methods of making such composite cathodes and cells.

This invention belongs to photo-electricity field, particularly a kind of thiophene spiral ring material and its preparation method, and its application in organic flat plate display, photo-volt cells, organic field effect tube and laser etc. organic electron field. This kind of compound introduces thiophene and functional thiophene in to conjugate semi-conductor material through spiral ring structure. The virtue are: (1) the synthesis is convenient and easy to get, and may be further modified; (2) may effectively realize photo-electricity property of modulate material; (3) with the virtue of high spectrum stability of spiral difluorene structure. The luminescence apparatus incurred by electricity prepared with this invent material has satisfaction result in brightness and luminescence efficiency. Thiophene spiral ring will be a potential commercialised photo-electricity material.

The invention discloses an all-solid-state sensitized solar cell and a preparation method thereof. The all-solid-state sensitized solar cell sequentially comprises a photo anode, an interface modification layer, a hole transport layer and a counter electrode from bottom to top, wherein the photo anode sequentially comprises a conductive glass layer, a dense film layer, a porous film layer and a sensitizer layer form bottom to top, and the dense film layer and the porous film layer are both made from titanium dioxide; the sensitizer layer is made from CH3NH3PbI3; the inference modification layer is made from aluminum oxide or magnesium oxide; the hole transport layer is made from spiro-MeOTAD or PTAA; the counter electrode is an Au electrode. The preparation method comprises the steps of during a process of preparing the solar cell, enabling a thin film to be immersed in polymeric precursor solution of the aluminum oxide after the sensitizer layer is prepared and before the spin-coating of a hole transport material is carried out, and obtaining an aluminum oxide interface modification material after natural drying, wherein the charge recombination can be prevented by the interface modification material, and the electron injection efficiency can be increased. According to the all-solid-state sensitized solar cell and the preparation method, disclosed by the invention, the cost is low, the photoelectric conversion efficiency of an all-solid-state dye-sensitized solar cell can be obviously increased, and a great significance is obtained for practical application of the all-solid-state dye-sensitized solar cell.

The invention discloses a method for preparing a nanometer composite film consisting of a titanium dioxide nanotube and a nanocrystalline. The method has the following steps of: preparing a titanium dioxide nanotube vertically on a titanium substate by an anodizing method; filling a precursor sol which can form the nanocrystalline into the nanotube, and carrying out heat treatment to obtain the nanometer composite film consisting of the titanium dioxide nanotube and the nanocrystalline. The invention has the advantages of simple preparing process, low cost and controllable film structure. The composite film prepared by the method can be used as the photoanode of the solar battery, and is favorable for enhancing the photoabsorption and electronic transmission of the photoanode.

The invention relates to an organic ultraviolet light detection device of a visible blind area, which takes Cu (I) coordination compound triplet-state materials with high electron transmission performance as electron acceptor components. The organic ultraviolet light detection device comprises an ITO (Indium Tin Oxid) conducting glass layer, an electron donor layer, a donor and acceptor material mixing layer, an electron acceptor layer, an electron injection layer (LiF (Lithium Fluoride)) and an Al cathode layer, wherein the donor and acceptor material mixing layer is formed by respectively mixing and depositing the Cu (I) coordination compound triplet-state materials with TPD and NPB (n-Propyl Bromide) or m-MTDATA; and the electron acceptor layer adopts the Cu (I) coordination compound triplet-state materials. The invention greatly improves the performance of the organic ultraviolet light detection device by using novel electron acceptor materials.

The invention relates to a preparation method for a carbon negative electrode material of a sodium ion battery, and belongs to the technical field of synthesis of a new energy material. The preparation method comprises the steps of washing and drying acquired sakura petals, performing calcination in a protection atmosphere, taking out a product after reaction is completed, placing the product in an HC1 solution, immersing the product under a room temperature, and finally, fully washing the immersed product with deionized water and obtaining the carbon negative electrode material of the sodiumion battery after drying. According to the preparation method, the sakura petals are used as a raw material and are successfully converted to a carbon material by high-temperature calcination, the carbonized petals are immersed in an acid liquid to remove inorganic particles formed in a surface, and the sheet-shaped carbon negative electrode material with a corrugated surface of the sodium ion battery is obtained. The material is beneficial for rapid ion and electron transmission and is suitably used as a high-activity electrode material for the sodium ion battery.

The invention relates to an electronic-transmission luminescent material and application thereof. The electronic-transmission luminescent material uses spirofluorene as a parent nucleus which is connected with one or two terpyridyl groups. The spirofluorene is an important blue-fluorescence parent nucleus, the molecule is a twisted non-coplanar structure, the intramolecular conjugation degree is reduced, and the introduction of the blue shift of the luminescence wavelength effectively enhances the color purity of the device. The twisted structure can avoid molecular cohesion and enhance the luminescence efficiency. The rigid structure of the spirofluorene greatly enhances the heat stability of the molecules. Pyridine is an electron-deficient molecular structure, and is a compound which is widely used as an electronic transmission layer in OLEDs (organic light-emitting diodes). The material has the advantages in the spirofluorene and pyridine, and can be used as a blue luminescent material, electronic transmission material and or electronic transmission and luminescent material.