430results about "Sulfide conductors" patented technology

A programmable metallization cell ("PMC") comprises a fast ion conductor such as a chalcogenide-metal ion and a plurality of electrodes (e.g., an anode and a cathode) disposed at the surface of the fast ion conductor and spaced a set distance apart from each other. Preferably, the fast ion conductor comprises a chalcogenide with Group IB or Group IIB metals, the anode comprises silver, and the cathode comprises aluminum or other conductor. When a voltage is applied to the anode and the cathode, a non-volatile metal dendrite grows from the cathode along the surface of the fast ion conductor towards the anode. The growth rate of the dendrite is a function of the applied voltage and time. The growth of the dendrite may be stopped by removing the voltage and the dendrite may be retracted by reversing the voltage polarity at the anode and cathode. Changes in the length of the dendrite affect the resistance and capacitance of the PMC. The PMC may be incorporated into a variety of technologies such as memory devices, programmable resistor/capacitor devices, optical devices, sensors, and the like. Electrodes additional to the cathode and anode can be provided to serve as outputs or additional outputs of the devices in sensing electrical characteristics which are dependent upon the extent of the dendrite.

The present invention provides seeded rod (SR) nanostructure systems including an elongated structure embedded with a seed structure being a core/shell structure or a single-material rod element. The SR systems disclosed herein are suitable for use in a variety of electronic and optical devices.

An inorganic nanowire having an organic scaffold substantially removed from the inorganic nanowire, the inorganic nanowire consisting essentially of fused inorganic nanoparticles substantially free of the organic scaffold, and methods of making same. For example, a virus-based scaffold for the synthesis of single crystal ZnS, CdS and free-standing L10 CoPt and FePt nanowires can be used, with the means of modifying substrate specificity through standard biological methods. Peptides can be selected through an evolutionary screening process that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure can provide a viable template for the directed synthesis of a variety of materials including semiconducting and magnetic materials. Removal of the viral template via annealing can promote oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate specific peptides into the linear self-assembled filamentous construct of the M13 virus introduces a material tunability not seen in previous synthetic routes. Therefore, this system provides a genetic tool kit for growing and organizing nanowires from various materials including semiconducting and magnetic materials.

The present invention relates to a process for producing sulfide glass or sulfide glass ceramic each capable of conducting a lithium ion, comprising subjecting metallic lithium, sulfur as a simple substance and phosphorus as a simple substance as starting raw materials, which constitute the sulfide glass and sulfide glass ceramic, to mechanical milling to thereby convert them into sulfide glass or sulfide glass ceramic; and a whole solid type cell using the above-mentioned sulfide glass ceramic as a solid electrolyte. According to the present invention, it is made possible to produce sulfide glass and sulfide glass ceramic which are each capable of conducting a lithium ion and which have high electroconductivity at room temperature by a simple and advantageous process from starting raw materials being easily available and inexpensive.

A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the ³¹P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (x_c) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.

The present invention relates to primary and secondary electrochemical energy storage systems. More particularly, the present invention relates to such systems as battery cells, especially battery cells utilizing metal fluorides with the presence of phosphates or fluorophosphates, which use materials that take up and release ions as a means of storing and supplying electrical energy.

Highly monodisperse nanocrystals (including CdSe, ZnSe, PbSe, Cu_2-xSe, MnSe, Zn_1-xCd_xSe, CuInSe₂, CuInSnSe₂, CdTe, ZnTe, PbTe, etc) have been synthesized by using different “green” starting materials to prepare chalcogenide (Se and Te) precursors successfully. Air-sensitive compounds (alkylphosphine, such as trioctylphosphine (TOP) and tributylphosphine (TBP)) have been eliminated to use in the entire synthetic process. As surface coating agents, amphiphilic oligomer (polymaleic acid aliphatic alcohol ester) with different alkyl chain length has been utilized to form oligomer-coated water-soluble nanocrystals.

The invention relates to one solid electrolyte materials and its process method for fix lithium battery, which is characterized by the following:four types of different sulfur compounds as Li2S:A/S:P2S5=6:0.1-4.0:1.5 for compound to form non-crystal system to provide more effective paths for lithium ion transmission to get higher ion conductive rate; the said A for Ag, Zn, Al or Zr with sample of Li2S-ZrS2-P2S5 with room ion battery conductive rate as 9.60X10-6S/cm and lower electron conductive rate under 150 degrees for 3.30X10-4S/cm.

Disclosed is a compound represented by the following formula 1:

• • wherein, each of R¹˜R¹³ independently represents —H, —F, —Cl, —Br, —I, —OH, —SH, —COOH, —PO₃H₂, —NH₂, —NO₂, —O(CH₂CH₂O)_nH (wherein, n is an integer of 1˜5), C₁˜C₁₂ alkyl group, C₁˜C₁₂ aminoalkyl group, C₁˜C₁₂ hydroxyalkyl group, C₁˜C₁₂ haloalkyl group, C₂˜C₁₂ alkenyl group, C₁˜C₁₂ alkoxy group, C₁˜C₁₂ alkylamino group, C₁˜C₁₂ dialkylamino group, C₆˜C₁₈ aryl group, C₆˜C₁₈ aminoaryl group, C₆˜C₁₈ hydroxyaryl group, C₆˜C₁₈ haloaryl group, C₇˜C₁₈ benzyl group, C₇˜C₁₈ aminobenzyl group, C₇˜C₁₈ hydroxybenzyl group, C₇˜C₁₈ halobenzyl group, or nitrile group (—CN); and at least one of R⁴˜R¹³ is nitrile group (—CN). A non-aqueous electrolyte comprising: (i) a lithium salt, (ii) a solvent, and (iii) a compound represented by formula 1; and a secondary battery comprising the non-aqueous electrolyte are also disclosed. When the compound represented by formula 1 is added to a non-aqueous electrolyte, it is possible to improve the safety of a secondary battery in an overcharged state.

A formulation comprises quantum dots and a quenching-preventive agent in a carrier material. The quenching-preventive agent is a metal chelating agents, a corrosion inhibitor, or a combination thereof. The formulation can be applied to a metal substrate, without experiencing metal ion induced fluorescence quenching.

A nanostructure, being either an Inorganic Fullerene-like (IF) nanostructure or an Inorganic Nanotube (INT), having the formula A_1−x-B_x-chalcognide are described. A being a metal or transition metal or an alloy of metals and/or transition metals, B being a metal or transition metal B different from that of A and x being ≦0.3. A process for their manufacture and their use for modifying the electronic character of A-chalcognide are described.

The present invention provides a method of efficiently producing a lithium ion conductive inorganic solid electrolyte having high ionic conductivity, including: conducting a melt reaction of lithium sulfide containing 0.15 mass % or less of each of a lithium salt of sulfur oxide and lithium N-methylaminobutyrate, and one or more components selected from diphosphorus pentasulfide, elemental phosphorus, and elemental sulfur; rapidly cooling the resultant; and subjecting the resultant to heat treatment, and a high-performance lithium battery using the electrolyte. In particular, the present invention provides a high-performance lithium battery having high energy density, which is obtained by using a positive electrode active material having an operating potential of 3 V or more, a negative electrode active material having a reduction potential of 0.5 V or less, and a lithium ion conductive inorganic solid electrolyte in contact with at least the negative electrode active material, the lithium ion conductive inorganic solid electrolyte being produced from lithium sulfide and one or more components selected from diphosphorus pentasulfide, elemental phosphorus, and elemental sulfur, and which can be used as a monolayer.

Disclosed herein is an isolable colloidal particle comprising a nanoparticle and an inorganic capping agent bound to the surface of the nanoparticle, a method for making the same in a biphasic solvent mixture, and the formation of structures and solids from the isolable colloidal particle. The process can yield photovoltaic cells, piezoelectric crystals, thermoelectric layers, optoelectronic layers, light emitting diodes, ferroelectric layers, thin film transistors, floating gate memory devices, phase change layers, and sensor devices.

The present invention relates to a composition for coating an organic electrode and method of manufacturing an organic electrode having a excellent transparency using the composition comprising 3% to 20% by weight of a polyhydric alcohol, polyol or a mixture thereof, 5% to 10% by weight of a primary alcohol having C1 to C5, 5% to 25% by weight of a amide, sulfoxide or a mixed solvent thereof, 0.01% to 0.1% by weight of a surfactant and a aqueous solution of polyethylenedioxythiophene (PEDOT) conductive polymers having nano-sized particle in a remainder. The present invention indicates the excellent transparency that transmittance of organic conductive layer is more than 90% in the visible ray area and sheet resistance is 300 to 900 Ω/sq in case of coating. Therefore the present invention is capable of manufacturing the organic electrode such a electrode or a writing material of organic transistor, smart card, antenna, electrode of battery and fuel battery, capacitor using for PCB, inductor, electromagnetic wave cover and a sensor etc. as well as the transparency electrode using for display.

Optical conversion layers based on semiconductor nanoparticles for use in lighting devices, and lighting devices including same. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are used to form conversion layers with superior combinations of high optical density (OD), low re-absorbance and small FRET. In some embodiments, the SNPs or RSNPs form conversion layers without a host matrix. In some embodiments, the SNPs or RSNPs are embedded in a host matrix such as polymers or silicone. The conversion layers can be made extremely thin, while exhibiting the superior combinations of optical properties. Lighting devices including SNP or RSNP-based conversion layers exhibit energetically efficient superior prescribed colour emission

The invention provides processes for the manufacture of conductive transparent films and electronic or optoelectronic devices comprising same.

This invention includes processes for making a photovoltaic absorber layer having a predetermined stoichiometry on a substrate by depositing a precursor having the predetermined stoichiometry onto the substrate and converting the deposited precursor into a photovoltaic absorber material. This invention further includes processes for making a photovoltaic absorber layer having a predetermined stoichiometry on a substrate by (a) providing a polymeric precursor having the predetermined stoichiometry; (b) providing a substrate; (c) depositing the precursor onto the substrate; and (d) heating the substrate.

Provided is a sulfide-based solid electrolyte which is capable of suppressing the generation of hydrogen sulfide caused by reaction with moisture even when in contact with dry air in a dry room or the like, and capable of maintaining lithium ion conductivity. Proposed is a sulfide-based solid electrolyte for a lithium secondary battery, wherein the surface of a compound containing lithium, phosphorus, sulfur, and halogen, and having a cubic argyrodite-type crystal structure is coated with a compound containing lithium, phosphorus, and sulfur, and having a non-argyrodite-type crystal structure.

The invention provides a conducting polymer composition, which contains polypyrrole and derivates thereof, polythiophene and derivates thereof, polyaniline and derivates thereof, polyacetaldehyde and derivates thereof, poly 1, 2-vinylidene thiophene and derivates thereof, and a conducting polymer compound of polysulfonic acid and conducting polymer formed by copolymers, and contains more than three hydroxy reducible compounds. The conducting polymer composition has high conductibility, and can maintain the conductibility in a high-temperature environment. A solid electrolytic capacitor contains the conducting polymer compound of the conducting polymer and the polysulfonic acid and more than three hydroxy reducible compounds in a solid electrolyte layer. The solid electrolytic capacitor has excellent ESR property and high-temperature invariability.

The inventors demonstrate herein that homogeneous Ag-doped PbTe/Ag₂Te composites exhibit high thermoelectric performance (˜50% over La-doped composites) associated with an inherent temperature induced gradient in the doping concentration caused by the temperature-dependent solubility of Ag in the PbTe matrix. This method provides a new mechanism to achieve a higher thermoelectric efficiency afforded by a given material system, and is generally applicable to other thermoelectric materials.

This invention includes processes for making a photovoltaic absorber layer having a predetermined stoichiometry on a substrate by depositing a precursor having the predetermined stoichiometry onto the substrate and converting the deposited precursor into a photovoltaic absorber material. This invention further includes processes for making a photovoltaic absorber layer having a predetermined stoichiometry on a substrate by (a) providing a polymeric precursor having the predetermined stoichiometry; (b) providing a substrate; (c) depositing the precursor onto the substrate; and (d) heating the substrate.

Described herein are semiconductor structures comprising laterally varying II-VI alloy layer formed over a surface of a substrate. Further, methods are provided for preparing laterally varying II-VI alloy layers over at least a portion of a surface of a substrate comprising contacting at least a portion of a surface of a substrate within a reaction zone with a chemical vapor under suitable reaction conditions to form a laterally varying II-VI alloy layer over the portion of the surface of the substrate, wherein the chemical vapor is generated by heating at least two II-VI binary compounds; and the reaction zone has a temperature gradient of at least 50-100° C. along an extent of the reaction zone. Also described here are devices such as lasers, light emitting diodes, detectors, or solar cells that can use such semiconductor structures. In the case of lasers, spatially varying wavelength can be realized while in the case of solar cells and detectors multiple solar cells can be achieved laterally where each cell absorbs solar energy of a given wavelength range such that entire solar spectrum can be covered by the said solar cell structure. For LED applications, spatial variation of alloy composition can be used to engineer colors of light emission.