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54 results about "Ionic crystal" patented technology

An ionic crystal is a crystal consisting of ions bound together by their electrostatic attraction. Examples of such crystals are the alkali halides, including potassium fluoride, potassium chloride, potassium bromide, potassium iodide, sodium fluoride, and other combinations of sodium, caesium, rubidium, or lithium ions with fluoride, bromide, chloride or iodide ions.

Nanophotonic devices based on quantum systems embedded in frequency bandgap media

The present invention describes nanophotonic materials and devices for both classical and quantum optical signal processing, transmission, amplification, and generation of light, which are based on a set of quantum systems having a discrete energy levels, such as atoms, molecules, or quantum dots, embedded in a frequency bandgap medium, such as artificial photonic crystals (photonic bandgap materials) or natural frequency dispersive media, such as ionic crystals, molecular crystals, or semiconductors, exhibiting a frequency (photonic) bandgap for propagating electromagnetic modes coupled to optical transitions in the quantum systems. If the frequency of one of optical transitions, called the working transition, lies inside the frequency bandgap of the medium, then spontaneous decay of the working transition into propagating photon modes is completely suppressed. Moreover, the excitation of the working transition and a photon form a photon-quantum system bound state lying inside the photonic bandgap of the medium, in which radiation is localized in the vicinity of the quantum system. In a quantum system “wire” or a quantum system “waveguide”, made of spatially disordered quantum systems, or in a chain quantum system waveguide made of a periodically ordered identical quantum systems, wave functions of the photon-quantum system bound states localized on different quantum systems overlap each other and develop a photonic passband lying inside bandgap of the photonic bandgap medium.
Owner:ALTAIR CENT

Ionic crystal type visible-light-induced photocatalyst based on Dawson type poly-tungstate and preparation method thereof

The invention belongs to the field of chemical material preparation, and in particular relates to an ionic crystal type visible-light-induced photocatalyst based on Dawson type poly-tungstate and W/Ni heteronuclear metal clusters, and a preparation method of the ionic crystal type visible-light-induced photocatalyst. The ionic crystal type visible-light-induced photocatalyst is prepared by using six-absence tungsten phosphate, nickel salt, trihydroxymethyl amino methane, potassium carbonate and hydrochloric acid as the raw materials and using a hydrothermal method. The ionic crystal type visible-light-induced photocatalyst can be used for degrading methylene blue and organic dyes with the same chromophores as the methylene blue, and the decolourization ratio of the methylene blue can be 97.8%. The photocatalyst has remarkable absorption effect in a visible light area, so that the defect that the ordinary poly-acid base photocatalyst shows the catalytic activity only when being radiated by ultraviolet rays is overcome; and meanwhile the photocatalyst is insoluble in water, and the defects that the poly-acid photocatalyst is easy to be dissolved in polar solvents and hard to recycle are overcome, so that the photocatalyst has significant application prospects in the treatment of industrial dye wastewater.
Owner:CHANGCHUN UNIV OF SCI & TECH

Method used for increasing stability of water phase quantum dot

The invention discloses a method used for increasing the stability of a water phase quantum dot. According to the method, an ionic liquid and the water phase quantum dot are subjected to ligand exchange so as to obtain a modified quantum dot ionic liquid, wherein the boiling point of the obtained modified quantum dot ionic liquid is high, is usually higher than 200 DEG C, and the stability of the modified quantum dot ionic liquid is always better than that of small molecular ligands, such as mercaptoacetic acid, mercaptopropionic acid, and glutathione, used for conventional water phase quantum dot preparation. The ligand exchange of the ionic liquid with the water phase quantum dot is adopted, so that the ionic liquid is converted into a quantum dot coated by a ligand, and the stability of single quantum dot is improved; the ionic liquid is an ionic crystal, an inorganic salt crystal is also ionic crystal, the ionic liquid modified quantum dot is capable of matching growth process of inorganic salt crystal, after mixing with inorganic salt, agglomeration among quantum dot is not easily caused, and uniform dispersed solid state quantum dot with high stability is obtained; the particle size of the solid state quantum dot can be adjusted via grinding, so that solid state quantum dot of different optical properties can be obtained.
Owner:GUANGDONG REAL FAITH LIGHTING TECH

Upper part electrode and manufacturing method of upper part electrode, and dry etching equipment

The invention provides an upper part electrode and a manufacturing method of the upper part electrode, and dry etching equipment. The upper part electrode comprises an upper part electrode main body, wherein electrode gas discharge holes are formed in the upper part electrode main body; the surface of the upper part electrode main body is coated with an ionic crystal layer; the surface of the ionic crystal layer is coated with an atom crystal layer. The method comprises the steps of forming the electrode gas discharge holes in the upper part electrode main body, forming the ionic crystal layer on the surface of the upper part electrode main body and forming the atom crystal layer on the surface of the ionic crystal layer. According to the upper part electrode provided by the invention, the surface oxidation film is made of atom crystals, and the atom crystals are stable in chemical property, high temperature resistant and large in Mohs hardness, so that the upper part electrode can effectively avoid adhesion of reaction product and corrosion of the electrode gas discharge holes, and then the service life of the upper part electrode is prolonged, and meanwhile the condition of poor process can be avoided.
Owner:BOE TECH GRP CO LTD +1

Negative ion air purification liquid, preparation method and special production equipment

PendingCN113828134ARealize automatic angle adjustment functionImplementing Angle ChangesGas treatmentLiquid degasificationElectric machineIonic crystal
The invention belongs to the technical field of air purification liquid, and discloses negative ion air purification liquid, a preparation method and special production equipment. The negative ion air purification liquid comprises the following components in parts by weight: 100-120 parts of negative ion crystals (powdery), 1-3 parts of a dispersing agent, 3-15 parts of a pH regulator, 10-20 parts of a natural hydrolat extracting solution and 50-60 parts of calcium carbonate (powdery). An adjusting column is driven to move, and rotation of the moving column in the moving process is completed through path guidance in an angle adjusting cavity, so that angle change of stirring blades during rotation is achieved, the contact area with materials is reduced at a high rotating speed, resistance is reduced, electric power used by a motor is saved, meanwhile, by arranging a first limiting ring, a reset spring and a second limiting ring, under the condition of low rotating speed, outward tension generated by the stirring blades on the moving column due to the centrifugal phenomenon is smaller than counter-acting force of the reset spring, low rotating speed causes low resistance, at the moment, the angle of the stirring blades is not changed in time, too large resistance cannot be caused, and the stirring efficiency is kept.
Owner:施凯西(广东)生物技术有限公司

Nucleation agglomeration induced granulation water treatment device for synchronously removing high-valence ions and organic matters

The invention relates to the technical field of water quality purification, and provides a nucleation agglomeration induced granulation water treatment device for synchronously removing high-valence ions and organic matters. The water treatment device comprises a pre-oxidation tank, a coagulation reaction tank and a granulation sedimentation tank which are sequentially communicated, the coagulation reaction tank is assisted by a coagulant, so that the organic matters are in a micro-destabilization state; an alkaline substance and a nucleating agent are used as auxiliary materials, so that high-valence metal ions are in an ionic crystal state; then the water enters the lower part of the granulation sedimentation tank, under the action of a coagulant aid; the nucleating agent is preferentially combined with ionic crystal to form a crystal nucleus center; micro-destabilized organic matters are gathered outside the crystal nucleus center in a one-by-one attachment mode to form a densifiedgranulation body; in the process that water flows from bottom to top, the density of a granulation body is increased from bottom to top, then the granulation body with the large density is deposited at the bottom of the granulation sedimentation tank, the nucleation condensation induced granulation process is completed, and finally water with high-valence metal ions and organic matter synchronously removed is discharged from a water outlet.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Self Q-adjusting garnet crystal, self Q-adjusting device made of self Q-adjusting garnet crystal and self Q-adjusting pulsed laser made of self Q-adjusting garnet crystal

The invention relates to a self Q-adjusting garnet crystal, a self Q-adjusting device made of the self Q-adjusting garnet crystal and a self Q-adjusting pulsed laser made of the self Q-adjusting garnet crystal. The molecular general formula of the self Q-adjusting garnet crystal Re3+, Cr4+: A3(ScxGa1-x)2Ga3O12 is (ReyCazA1-y-z)3(ScxGa1-x)2(CrzGa1-z)3O12, wherein Re is equal to Nd or Yb, A is equal to Y, Gd or Lu,x is greater than or equal to 0 and smaller than or equal to 1,y is greater than or equal to 0 and smaller than or equal to 1, and z is greater than or equal to 0.00001 and smaller than or equal to 0.1; gain active ions (Nd3+ or Yb3+) and saturable absorbed ions Cr4+ are combined to realize the output of the self Q-adjusting pulsed laser with corresponding wave length. Co-doping Nd3+ and Cr4+ionic crystal Nd3+,Cr4+:A3(ScxGa1-x)2Ga3O12 can realize self Q-adjusting pulsed laser of which the output wavelength is 0.9 micron (4F3 / 2-4I9 / 2) and 1.06 microns (4F3 / 2-4I11 / 2); co-doping Yb3+ and Cr4+ionic crystal Yb3+,Cr4+:A3(ScxGa1-x)2Ga3O12 can realize self Q-adjusting pulsed laser of which the output wavelength is about 1 micron (2F5 / 2-2F7 / 2). The self Q-adjusting pulsed laser disclosed by the invention has the characteristics of simple and compact structure, small size, low cost, and simpleness in operation.
Owner:SHANDONG UNIV

A method for improving the stability of quantum dots in aqueous phase

The invention discloses a method used for increasing the stability of a water phase quantum dot. According to the method, an ionic liquid and the water phase quantum dot are subjected to ligand exchange so as to obtain a modified quantum dot ionic liquid, wherein the boiling point of the obtained modified quantum dot ionic liquid is high, is usually higher than 200 DEG C, and the stability of the modified quantum dot ionic liquid is always better than that of small molecular ligands, such as mercaptoacetic acid, mercaptopropionic acid, and glutathione, used for conventional water phase quantum dot preparation. The ligand exchange of the ionic liquid with the water phase quantum dot is adopted, so that the ionic liquid is converted into a quantum dot coated by a ligand, and the stability of single quantum dot is improved; the ionic liquid is an ionic crystal, an inorganic salt crystal is also ionic crystal, the ionic liquid modified quantum dot is capable of matching growth process of inorganic salt crystal, after mixing with inorganic salt, agglomeration among quantum dot is not easily caused, and uniform dispersed solid state quantum dot with high stability is obtained; the particle size of the solid state quantum dot can be adjusted via grinding, so that solid state quantum dot of different optical properties can be obtained.
Owner:GUANGDONG REAL FAITH LIGHTING TECH
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