Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

44 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.

Method for generating a nonlinear optical effect

The application provides a nonlinear optical effect generation method, relates to the field of optoelectronic technology, and comprises the following steps: fixing and placing a polar ion crystal as a nonlinear medium, the polar ion crystal being a diatomic crystal or a polyatomic crystal with an optical phonon mode; using a modulated terahertz wave to excite a stimulated phonon polariton in the nonlinear medium, so as to enhance the nonlinear efficiency of signal light incident on the nonlinear medium; and adjusting the polarization angle and the incident angle of the signal light and / or the modulated terahertz wave, so as to generate a nonlinear optical effect. The application is based on the characteristics of the interaction between light and matter modulated by the stimulated phonon polariton, and the nonlinear polarizability is greatly improved by using the stimulated phonon polariton, so that the weak light nonlinear effect of most wavelengths of light can be realized efficiently; and the nonlinear optical effect has the advantages of high refresh rate, wide spectral response, low threshold and low power consumption.
Owner:NANKAI UNIV

Perovskite quantum dot composite material, ink and method for manufacturing perovskite quantum dot composite material

A method for manufacturing a perovskite quantum dot composite material that easily forms core-shell particles through a one-stage synthesis step is provided, along with the perovskite quantum dot composite material and an ink containing the perovskite quantum dot composite material. This perovskite quantum dot composite material suppresses surface defects of the perovskite quantum dots by forming an ionic crystal layer comprising halides in the shell layer and exhibits a very high PLQY (Power Level Quality). The perovskite quantum dot composite material comprises core particles and a shell layer surrounding the core particles. The core particles are composed of metal halide perovskites, and the shell layer comprises an organic halide compound with an ionic crystal structure having the same halogen composition as the core particles. The PLQY is greater than 75%, and the change in emission wavelength is less than 5 nm over a period of 10,000 minutes at room temperature.
Owner:ISE CHEM IND +1

Porous titanium black ceramic body, preparation method and application thereof and electro-catalysis device

PendingCN120736893ACellsCeramicwareIonic crystalAll ceramic
The invention provides a porous titanium black ceramic body, a preparation method and application thereof and an electro-catalysis device. The preparation method comprises the following steps: carrying out sintering molding on a mixture of TiOx powder and a metal oxide type ionic crystal or firstly molding and then sintering to prepare a ceramic body containing the TiOx powder and the metal oxide type ionic crystal; carrying out acid pickling on the ceramic body to obtain a porous TiOx ceramic body; in the TiOx powder, x is more than 0 and less than or equal to 1; or carrying out sintering molding on the mixture of the TiO2 powder and the metal Mg, or firstly molding and then sintering to prepare a ceramic body containing the TiOx powder and the magnesium oxide; carrying out acid pickling on the ceramic body to obtain a porous TiOx ceramic body; in the TiOx powder, xlt is greater than or equal to 1; 2. The porous titanium black ceramic body has conductivity close to metal grade, a through porous structure and full-ceramic chemical stability, the preparation method is simple, the cost is low, and industrial production is facilitated.
Owner:SHANGHAI JIAOTONG UNIV

Powder light emitting crystal material of antimony-doped wide band gap zirconium-based chloride and preparation method and application thereof

This invention discloses an antimony-doped wide-bandgap zirconium chloride powder-emitting crystal material, its preparation method, and its application. The chemical formula of the powder-emitting crystal material is (C9H). 15 N3)2ZrCl8:Sb 3+ It belongs to the monoclinic crystal system, with space group P21 / c; in the described photoluminescent crystal material, each zirconium atom is coordinated with 8 chlorine atoms to form [ZrCl8]. 4‑ Polyhedral structure, organic cation (C9H) 15 N3) + It is linked to inorganic anions via C–N–H···Cl bonds, forming discrete [ZrCl8]. 4‑ The octahedral structure is replaced by organic cations (C9H). 15 N3) + Complete isolation is achieved, forming a zero-dimensional ionic crystal structure. This invention overcomes the problems of single luminescent center, limited emission wavelength, and insufficient luminescence intensity in undoped zirconium-based chlorides by introducing antimony. Antimony, as an effective luminescent center, can promote the radiative recombination process and achieve high-brightness broadband emission.
Owner:ANHUI UNIV

Device for receiving a volume flow and method for realizing a volume flow

Device (1) for receiving a volume flow of a medium which, in the solidified state, forms an ionic crystal structure, comprising at least one wall surface (10) which limits the volume flow (3) at least on one side, wherein the wall surface (10) has convex shape elements (20), wherein the device (1) for receiving a volume flow is a tube on the inner wall of which the convex shape elements (20) are arranged, characterized in that each convex shape element (20) has a cross-sectional area in its plane of section perpendicular to the plane of the surface (11) of the wall surface (10) and through its vertex (21) and along the longitudinal direction of the tube, which is bounded by an arc-shaped edge (22) and an edge connected to the arc-shaped edge (22) which is designed as a tangent (23), wherein the edge designed as a tangent (23) transitions into the surface (11).
Owner:ERK ECKROHRKESSEL HLDG GMBH

Fabrication process for flexible single-crystal perovskite devices

A method of fabricating an ionic crystal includes providing a single crystal substrate of an ionic crystal material is provided. A patterned mask is applied over the single crystal substrate A growth solution is introduced over the single crystal substrate. The growth solution includes precursors for epitaxial growth of the ionic crystal material on the single crystal substrate such that epitaxial crystals grow over time through pattern openings in the patterned mask into a crystal structure with one or more morphologies.
Owner:RGT UNIV OF CALIFORNIA

A type of ethylaminethiourea passivated perovskite film and preparation method thereof and perovskite solar cell

The present invention discloses a class of ethylenethiourea-passivated perovskite thin films, a preparation method thereof, and a perovskite solar cell. The perovskite thin film comprises a perovskite thin film and a passivation layer, the passivation layer is located on the surface of the perovskite thin film, and the passivation molecules of the passivation layer have a chemical formula of C3H9N3S·2HBr. The passivation molecule ethylenethiourea (AET) of the present invention has three amino groups and one S-donor. Among them, the amino group can form a hydrogen bond with the iodine atom in the perovskite crystal, and the S-donor can form a Lewis acid-base adduct with the Pb atom or form a hydrogen bond with NH. At the same time, due to the efficient passivation of defects by ethylenethiourea as a passivating agent, the channels for ion migration are reduced, so that the ion migration phenomenon in the perovskite material with ionic crystal properties is significantly inhibited, effectively improving the photoelectric conversion efficiency and stability of the device. The photoelectric conversion efficiency (PCE) is increased from 18.19% to 20.21%.
Owner:DALIAN UNIV OF TECH

Surface-coated ionic crystal, method for producing surface-coated ionic crystal, and surface coating agent

To provide an ionic crystal using a new method that can further improve the heat resistance of the ionic crystal. [Solution] A surface-coated ionic crystal in which the surface of an ionic crystal is coated with a first polymer containing a first repeating unit which is a repeating unit having two or more zwitterionic structures in its side chain portion, and a second polymer containing a second repeating unit which is a repeating unit having only one zwitterionic structure in its side chain portion.
Owner:MITSUBISHI CHEM CORP

Antimony-doped wide-bandgap zirconium-based chloride powder light emission crystal material and preparation method and application thereof

The invention discloses a powder light emitting crystal material of antimony-doped wide bandgap zirconium-based chloride and a preparation method and application of the powder light emitting crystal material, the chemical formula of the powder light emitting crystal material is (C9H15N3) 2ZrCl8: Sb < 3 + >, the powder light emitting crystal material belongs to a monoclinic system, and the space group is P21 / c; in the powder light emitting crystal material, each zirconium atom is coordinated with eight chlorine atoms to form a [ZrCl8] < 4-> polyhedral structure, organic cations (C9H15N3) < + > are connected with inorganic anions through C-N-H... Cl bonds, and the discrete [ZrCl8] < 4-> octahedral structure is completely isolated by the organic cations (C9H15N3) < + > to form a zero-dimensional ion crystal structure. According to the invention, the antimony element is introduced to overcome the problems of single luminescence center, limited emission wavelength and insufficient luminescence intensity of undoped zirconium-based chloride, and antimony is used as an effective luminescence center to promote the radiation recombination process and realize high-brightness wide-spectrum emission.
Owner:ANHUI UNIV

Method for processing probe direct-writing atomic layer on surface of FCC (Fluid Catalytic Cracking) crystal material

The invention relates to a method for processing a probe direct-writing atomic layer on the surface of an FCC (fluid catalytic cracking) crystal material, and relates to the technical field of ultra-precision manufacturing, the processing method comprises the following steps: selecting a scanning probe as a processing tool; and carrying out scribing processing from the position of the FCC crystal material with the dangling bond to the direction without the dangling bond according to a preset processing track. According to the probe direct-writing atomic layer processing method provided by the invention, the processing application range of the scanning probe can be widened to a blocky FCC crystal material, and the limitation that only a silicon dioxide tip can be utilized to remove a two-dimensional material in a traditional scanning probe processing method is solved; atomic-scale precision manufacturing of the ionic crystal material of the face-centered cubic structure can be achieved, and the application range of the scanning probe machining method is widened. Meanwhile, the application material range of the scanning probe can be widened, and besides active materials such as silicon and silicon oxide, inert materials can also be adopted, so that the selection range of machining tool materials is widened.
Owner:SOUTHWEST JIAOTONG UNIV

Method for rapidly cooling ionic crystal based on EIT

The invention provides a method for rapidly cooling an ionic crystal based on EIT, and belongs to the field of ion cooling, and the method comprises the steps: S1, carrying out the pretreatment of trapped ions in an ion trap; s2, using a first light beam and a second light beam to irradiate the trapping ions at the same time and maintaining for a preset time; s3, representing the average phonon number of the trapped ions obtained in the step S2, and if the average phonon number does not meet a preset condition, repeating the step S2; and S4, cooling is finished, and the ionic crystal meeting the requirements is obtained. The first light beam (coupling light) and the second light beam (detection light) used for EIT cooling are adjusted to meet non-strict conditions, the requirement of the system for laser stability is lowered, the cooling bandwidth is increased by generating non-resonance driving, the relaxation time of the system cooling process is shortened due to the detuning difference of the coupling light and the detection light, and the cooling process is accelerated; and the cooling rate is further improved through periodic modulation of the coupling light pull ratio frequency.
Owner:NAT UNIV OF DEFENSE TECH

Coated microcrystalline glass with improved water-repellent and oil-repellent property, preparation method and application thereof

A microcrystalline glass containing a water-repellent and oil-repellent composite coating layer on the surface, a preparation method and application thereof. The coated glass is a microcrystalline glass or a glass ceramic containing a water-repellent and oil-repellent composite coating layer on the surface, which is characterized in that from the outmost surface of the glass, it includes: a water-repellent and oil-repellent layer, an intermediate layer, a bottom layer and a microcrystalline glass or a glass ceramic, wherein, the intermediate layer is the intermediate layer containing ionic crystals with a lattice energy of 700-3000 kJ / mol and formed by the same, the bottom layer includes compounds containing Si—O bonds or a mixed silicon oxide layer. The present invention can form a firm, durable and excellent water-repellent and oil-repellent coating film even if the coating interface of microcrystalline glass has very few Si—O structure, and can achieve excellent water-repellent and oil-repellent property regardless of whether the high-crystallinity glass has done ion exchange or not.
Owner:CHONGQING AUREAVIA HI TECH GLASS CO LTD

Metal corrosion sensor, localized corrosion rate detection device, and localized corrosion rate detection method

To provide a metal corrosion sensor capable of calculating a corrosion rate of a metal structure.SOLUTION: The metal corrosion sensor 10 is used to detect a corrosion rate of a pipe (metal structure) through which fresh water (liquid) flows. The metallic corrosion sensor 10 is sandwiched between a first metallic plate 11 and a second metallic plate 12, the first metallic plate 11 being made of the same material as the pipe and having a known thickness t1 and being exposed to fresh water (liquid), and the second metallic plate 12 being made of a different material from the first metallic plate 11 and being shielded from fresh water. A spacer 13 that electrically insulates the first metal plate 11 and the second metal plate 12 from each other, and an ionic crystal 14 that is held by the spacer 13 in a state of being shielded from fresh water, and that is exposed to fresh water when a through-hole is formed in the first metal plate 11 due to local corrosion, thereby electrically connecting the first metal plate 11 and the second metal plate 12, wherein a current flowing between the first metal plate 11 and the second metal plate 12 can be measured.SELECTED DRAWING: Figure 3
Owner:SHINRYOI CORP +1

Anion organic silicon synthetic leather

The invention belongs to the technical field of synthetic leather, and discloses negative ion organic silicon synthetic leather, which comprises 10-100 parts of a polymer liquid organic silicon material, 1-10 parts of a negative ion crystal material, 10-50 parts of a leather base material, 1-10 parts of a pigment and 1-10 parts of a functional auxiliary agent, and is characterized in that air purification and peculiar smell elimination are realized through negative ion release, and formaldehyde, peculiar smell and bacteria are inhibited; the leather is adaptive to scenes with requirements on environmental health, such as automotive trim and home furnishing, and the organic silicon material and the leather base material are ensured to be tightly combined through processes such as high-temperature plasticizing molding and stripping and winding, so that layering is avoided; the coating thickness, temperature and time are accurately controlled, the stability of the structure of a finished product is guaranteed, meanwhile, the negative ion crystal material is evenly distributed, the release and purification functions are maximized, finally, the functions of purifying air, inhibiting bacteria, removing peculiar smell and the like are stably presented, meanwhile, the practicability of the synthetic leather is pertinently improved through the surface functional layer, and actual application and operation are facilitated.
Owner:NINGBO JIAMAILONG NEW MATERIALS CO LTD

Quantum computing arrangement and quantum computer

PendingUS20260087392A1Quantum computersIon trap mass spectrometryIonic crystal
In an embodiment a quantum computing arrangement includes a permanent magnet arrangement configured to establish a magnetic field with magnitudes being different from one another for different positions on a first axis, and an ion trap having a first region and a second region arranged above one another, wherein the ion trap has at least one section being part of the first region and the second region configured for hosting at least one ion crystal, wherein the first and second regions are stacked above one another in a vertical direction, wherein the vertical direction is perpendicular to a main extension plane of the ion trap, and wherein the at least one ion crystal includes a plurality of trapped ions arranged along the first axis.
Owner:ELEQTRON GMBH

Multimodal imaging apparatus at ultrahigh pressure

A diamond anvil cell device includes a first diamond anvil having a culet cut to provide a first anvil surface that is substantially perpendicular to a [111] crystal axis thereof; and a second diamond anvil having a culet cut to provide a second anvil surface. The at least one of the first and second diamond anvils includes an ion-crystal-vacancy-defect pair formed therein at a distance of at least 10 nm to 5 μm from the corresponding first or second anvil surface, and a remaining portion of the at least one of the first and second diamond anvils at distances farther than 5 μm from the first or second anvil surface is substantially free of ion-crystal-vacancy-defect pairs. A diamond anvil for a diamond anvil cell is defined by a plurality of flat surfaces resulting from cuts in a bulk piece of diamond having [111], [100] and [110] crystal axes, wherein one of said plurality of flat surfaces is a culet cut to provide an anvil surface of the diamond anvil. The culet is substantially perpendicular to the [111] crystal axis of the bulk piece of diamond. The diamond anvil includes an ion-crystal-vacancy-defect pair formed therein at a distance of at least 10 nm to 5 μm from the anvil surface, and a remaining portion of the diamond anvil at distances farther than 5 μm from the anvil surface is substantially free of ion-crystal-vacancy-defect pairs.
Owner:RGT UNIV OF CALIFORNIA

Method and system for realizing adjustable quantum simulation in ionic crystal

The invention discloses a method and system for realizing adjustable quantum simulation in ionic crystals, and the method comprises the steps: S1, preparing N target ions in a multi-dimensional ion chain into a unified initial quantum state in an imprisoning system of an ion trap; s2, the control module outputs N radio frequency signals with different frequencies and amplitudes, drives the acousto-optic modulation unit to output N diffracted light beams to N ions, and lasts for a fixed time; s3, the control module obtains the probability that each ion is excited to a set quantum state, and obtains the Rabian frequency of each ion according to the probability; and S4, the control module updates the output of the iteration control module by adopting a feedback control law mode according to the RH frequency of the ions obtained when the ions are measured, the target RH frequency of the ions and the amplitude of the radio frequency signal irradiated to the ions until the RH frequencies of the N target ions reach a preset condition. The invention provides a universal method for realizing any light intensity distribution in multi-ion addressing of an acousto-optic modulation unit.
Owner:HEFEI YAOZHENG QUANTUM TECH CO LTD

Quantum computing arrangement and quantum computer

PendingUS20260087393A1Quantum computersIonic crystalMagnetization
In an embodiment a quantum computing arrangement includes a permanent magnet arrangement, a substrate, wherein the quantum computing arrangement is configured to realize a planar Paul trap configured for trapping at least one ion crystal having several ions lined up along a predefined line, and components, constituting electrodes of the planar Paul trap configured for producing an electrical trapping potential, arranged on a top side of the substrate, wherein the predefined line is located above the top side, wherein the permanent magnet arrangement is configured to establish a magnetic field with a magnitude of the magnetic field changing along the predefined line, wherein the permanent magnet arrangement comprises a plurality of permanently magnetized segments, wherein each segment has a magnetization direction, and wherein the segments are arranged in a Halbach arrangement.
Owner:ELEQTRON GMBH

Nonaqueous electrolyte secondary battery

PCT designated stage expiredWO2025089182A1Cell electrodesLi-accumulatorsElectrical batteryIonic crystal
Provided is a nonaqueous electrolyte secondary battery capable of improving coulombic efficiency while omitting a conventional negative electrode active material layer. A nonaqueous electrolyte secondary battery according to an embodiment includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. The nonaqueous electrolyte is a nonaqueous electrolyte in which an ionic crystal is dissolved in an ionic liquid. The negative electrode has a current collector and a silicon-containing layer disposed on the current collector, and the layer does not contain an organic binder.
Owner:DKS CO LTD +1

A microcrystalline glass display screen and a method of manufacturing the same

ActiveCN116589194BCoatingsGlass productionPolymer scienceIonic crystal
The present application relates to a kind of microcrystalline glass display screen and its preparation method, the film-coated glass is the microcrystalline glass or glass ceramic containing hydrophobic and oleophobic composite coating on its surface, it is characterized in that, from the surface of glass, it includes: hydrophobic and oleophobic layer, intermediate layer, primer layer and microcrystalline glass or glass ceramic, wherein, the intermediate layer is the intermediate layer formed by containing lattice energy 700-3000kJ / mol ionic crystal, the primer layer includes the compound containing Si-O bond or mixed silicon oxide layer.By the present application, even if there is little Si-O structure in the film-coated interface of microcrystalline glass, a firm, durable, excellent performance hydrophobic and oleophobic coating can also be formed, whether high crystallinity glass has been ion exchanged or not, excellent hydrophobic and oleophobicity can be achieved.
Owner:CHONGQING AUREAVIA HI TECH GLASS CO LTD

Fluorine-containing polymer hydrophobic and oleophobic layer-coated microcrystalline glass, method for manufacturing the same, and use thereof

This invention relates to coated microcrystalline glass with a fluorinated polymer hydrophobic and oleophobic layer, its preparation method, and applications. The coated glass is a microcrystalline glass or glass-ceramic with a hydrophobic and oleophobic composite coating on its surface. The invention is characterized by comprising, starting from the outermost surface of the glass: a hydrophobic and oleophobic layer, an intermediate layer, a base layer, and the microcrystalline glass or glass-ceramic. The intermediate layer is formed by ionic crystals containing lattice energy of 700-3000 kJ / mol, and the base layer comprises a compound containing Si-O bonds or a mixed silicon oxide layer. This invention enables the formation of a robust, durable, and high-performance hydrophobic and oleophobic coating at the coating interface of the microcrystalline glass, even with minimal Si-O structure. Excellent hydrophobic and oleophobic properties can be achieved regardless of whether the highly crystalline glass has undergone ion exchange.
Owner:CHONGQING AUREAVIA HI TECH GLASS CO LTD

Method of lubricating a wave generator device

A wave gear device (1) is lubricated with non-hydrophobized powder (10A) enclosed in an internal space (9) before the end of running-in (aging), and the non-hydrophobized powder (10A) forms a firm lubricating film by transferring and adhering to each contact surface of the contact portions (B, C). During load running, the wave gear device (1) is lubricated with hydrophobized powder (10B) enclosed in the internal space (9) instead of the non-hydrophobized powder (10A). The powders (10A, 10B) used are powders of ionic crystal compounds (MoS2, WS2, etc.) having a layered crystal structure. By lubricating the wave gear device (1) during load running with the hydrophobized powder (10B), temporary efficiency reduction at the start of running can be suppressed, and stable running of the wave gear device (1) can be maintained.
Owner:HARMONIC DRIVE SYST IND CO LTD

Block beta-phase silver iodide single crystal material and preparation method thereof

The invention discloses a bulk beta-phase silver iodide single crystal material and a preparation method thereof, belongs to the technical field of ionic crystal materials, and is characterized in that a bulk beta-AgI single crystal is prepared in a room temperature environment by adopting an anti-solvent method and taking a potassium iodide solution as a good solvent and distilled water as an anti-solvent. According to the bulk beta-phase silver iodide single crystal material and the preparation method thereof, the prepared bulk beta-AgI crystal has good appearance, good thermal performance and high stable temperature, and the method provides new thoughts and conditions for subsequent growth of the crystal and preparation of devices and shows good application prospects.
Owner:SHANDONG UNIV OF TECH

Glass ceramic and preparation method thereof

The invention discloses microcrystalline glass and a preparation method thereof, the microcrystalline glass is composed of a microcrystalline glass body and zirconium oxide coatings on the upper surface and the lower surface of the microcrystalline glass, the thickness of the microcrystalline glass body is 0.6-2mm, the thickness of the zirconium oxide coatings is 1-5m, and the average size of zirconium oxide particles in the zirconium oxide coatings is 30-50nm. Compared with a chemical strengthening method generally adopted in the prior art for strengthening the hardness and the strength of the microcrystalline glass, the method disclosed by the invention has the advantages that the operation is simple, the cost is lower, the overall performance of a product is better, and particularly, the Vickers hardness, the fracture toughness and the wear resistance in glass material mechanics are more outstanding; the zirconium oxide on the surface of the glass has excellent mechanical properties, the crystal structure of the zirconium oxide is a typical ionic crystal, oxygen ions and zirconium ions form a lattice structure through stable coordinate bonds, and the zirconium oxide has high stability and corrosion resistance.
Owner:CHANGSHU JIAHE DISPLAY TECH CO LTD

Nonaqueous electrolyte secondary battery

PendingJP2025072883ACell electrodesLi-accumulatorsElectrical batteryIonic crystal
To provide a nonaqueous electrolyte secondary battery that can improve Coulomb efficiency while omitting a conventional negative electrode active material layer.SOLUTION: A nonaqueous electrolyte secondary battery according to an embodiment includes a negative electrode, a positive electrode, and a nonaqueous electrolyte solution in which ionic crystals are dissolved in an ionic liquid. The negative electrode includes a current collector and a layer containing silicon disposed on the current collector, the layer not containing an organic binder.SELECTED DRAWING: Figure 1
Owner:DKS CO LTD +1

Optical arrangement for a quantum computer, quantum computer arrangement and quantum computer

PendingDE102023135187A1Quantum computersLaser detailsLight beamIonic crystal
According to one embodiment, the optical arrangement (10) for a quantum computer comprises a first (1), a second (2), and a third (3) mirror for focusing radiation from a laser (4) onto an ion crystal (6) of a plurality of ions (6'), wherein the ions are lined up along a predefined line (7). The first and second mirrors are designed to convert a laser beam with a circular beam profile into a beam with an elongated beam profile by reflection from the first and second mirrors. The third mirror is designed to focus the beam with the elongated beam profile coming from the second mirror onto the ion crystal, so that the elongated beam profile is maintained and, at the location of the ion crystal, the elongated beam profile is aligned with the predefined line.
Owner:ELEQTRON GMBH

Wave type one-dimensional lead bromide perovskite crystal and preparation method and application thereof

The invention discloses a wavy one-dimensional lead bromide perovskite crystal and a preparation method and application thereof. The molecular general formula of the perovskite crystal is (PEA) 2Pb2Br10. H2O (PEA is N-aminoethyl piperazine trivalent cation), in the crystal structure, [PbBr6] octahedrons form wavy inorganic chains, water molecules are limited in wavy pockets of the inorganic chains through hydrogen bond interaction with bromide ions and cation PEA to form a unique hydrogen bond network, the inorganic chains are alternately and vertically stacked, and the molecular weight of the perovskite crystal is increased. The compound has high stability below 387K, shows broadband emission, high quantum yield and excellent photoluminescence performance, and has application prospects in the aspects of solid-state illumination, liquid crystal display and the like. The preparation method is simple, can easily obtain high-quality crystals and films, and is suitable for large-scale preparation.
Owner:JINLING INST OF TECH

Reverse extraction crystallization method

InactiveCN120366572AOrganosolvPhysical chemistry
The invention belongs to the technical field of hydrometallurgy extraction and crystallization, and particularly relates to a reverse extraction crystallization method which comprises the following steps: S1, a loaded organic solvent and a saturated reverse extraction solution are obtained, the loaded organic solvent comprises an organic solvent and metal ions loaded by the organic solvent, and the saturated reverse extraction solution comprises a saturated salt solution of the metal ions; s2, the saturated strip liquor reacts with the loaded organic solvent to separate out ionic crystals, raffinate and a no-load organic solvent are obtained, the raffinate comprises a saturated solution of the salt solution of the metal ions, and the ionic crystals comprise the metal ions; according to the method, the loaded organic solvent is extracted through the saturated strip liquor, crystallization and rapid growth of metal salt can be promoted, evaporation and concentration of the solution are not needed, the crystallization efficiency is improved, and the production cost is reduced; meanwhile, continuous production can be achieved in the production process, and the production efficiency is improved.
Owner:GANZHOU HANRUI NEW ENERGY TECH CO LTD