1580 results about "Host material" patented technology

The invention provides a composite material with an MOF structure as well as a preparation method and application thereof, the composite material comprises a main body material structure with oxygen vacancies coated with the MOF structure, the composite material is formed by in-situ growth of the MOF structure on a main body material with the oxygen vacancies, and the main body material with the oxygen vacancies is formed by in-situ growth of the MOF structure on the main body material with the oxygen vacancies. According to the MOF material, metal active sites capable of growing can be provided for the MOF structure, oxidizing gas generated by the battery under the extreme condition can be synergistically eliminated, the MOF material has Lewis acidity, the rate performance of the battery can be improved, reducing gas generated by the battery under the extreme condition can be adsorbed, and therefore the safety performance of the battery is improved.

Solid-state platforms based on electro-nuclear spin systems are attractive candidates for rotation sensing due to their excellent sensitivity, stability, and compact size, compatible with industrial applications. Conventional spin-based gyroscopes measure the accumulated phase of a nuclear spin superposition state to extract the rotation rate and thus suffer from spin dephasing. A gyroscope protocol based on a two-spin system that includes a spin intrinsically tied to the host material, while the other spin is isolated. The rotation rate is then extracted by measuring the relative rotation angle between the two spins starting from their population states, robust against spin dephasing. In particular, the relative rotation rate between the two spins can be enhanced by their hyperfine coupling by more than an order of magnitude, further boosting the achievable sensitivity.

The invention discloses an organic compound containing naphthenic fluorene and dibenzofuran, a blue light-emitting composition containing the organic compound and an organic electroluminescent device. The structural general formula of the organic compound is as shown in formula I in the specification. According to the organic compound, electron-rich substituent naphthenic fluorene and electron-deficient substituent dibenzofuran are introduced to specific positions on a boron-nitrogen molecular skeleton, so that electron and hole recombination energy of guest material molecules can be reduced, the transmission capability of carriers on the guest material molecules is improved, the guest material molecules are prevented from becoming traps in carrier transmission, and the transmission efficiency of the guest material molecules is improved. Therefore, the carrier transport process of the light-emitting layer is improved to a certain extent, the guest material is prevented from forming polaritons, the light-emitting efficiency of the light-emitting layer is improved, the host material with the anthracene parent nucleus as the characteristic is used in cooperation, stacking and molecular orientation between the host and the guest can be improved, the carrier transport process and the light-emitting process are improved, and the light-emitting efficiency of the light-emitting layer is improved. Therefore, the organic light-emitting device provided by the invention has more excellent efficiency performance on a top-emitting device. # imgabs0 #

The invention belongs to the field of organic electroluminescent materials, and discloses an organic electroluminescent material containing double hosts, a preparation method and an organic electroluminescent device. The double-host-containing organic electroluminescent material comprises a first host material and a second host material, the first host material is a compound having a structure represented by a general formula (1), and the second host material is a compound having a structure represented by a general formula (2). According to the organic electroluminescent device, triplet excitons are dispersed on two main bodies by using a double-main-body material, triplet-triplet annihilation is reduced, the driving voltage of the organic electroluminescent device is reduced, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

A high-brightness and high-power fiber laser adopts an oscillator structure and comprises a pumping module, a high-reflectivity fiber grating, a gain fiber, a low-reflectivity fiber grating and a cladding light filter, the gain fiber is a rare earth ion doped ZBLAN fiber which takes ZBLAN as a matrix material and is of an all-solid-state anti-resonance structure, and the low-reflectivity fiber grating is a rare earth ion doped ZBLAN fiber which is of an all-solid-state anti-resonance structure. The gain optical fiber comprises a fiber core area, a cladding area, an anti-resonance area and a coating layer, the anti-resonance area is composed of at least one capillary tube set, each capillary tube set comprises a plurality of capillary tubes, the capillary tubes in each capillary tube set are annularly arranged on the periphery of the fiber core area with the fiber core area as the center, and the cladding layer is arranged on the cladding layer. The matrix material in each capillary tube and the matrix material in the cladding region are the same and are ZBLAN, and the matrix material ZBLAN in the fiber core region is doped with dysprosium ions. According to the invention, the rare earth doped all-solid-state anti-resonance optical fiber is adopted as the gain optical fiber, so that high-brightness, high-power and high-efficiency output can be realized.

The invention discloses an anthracene compound and an organic electroluminescent device. The compound has a structure as shown in a formula (1): # imgabs0 #, a ring A is selected from a formula (2) or a formula (3): # imgabs1 #, and the compound can be used as a blue light host material in an OLED luminescent device, has the advantages of low driving voltage, high luminous efficiency, long device life and the like, and has the potential of being applied to the AMOLED industry.

The present invention discloses an aqueous zinc-ion battery, comprising: a positive electrode sheet, a negative electrode sheet and an electrolyte. The positive electrode material of the positive electrode sheet is a layered vanadium-based positive electrode material. Since cations and water molecules are inserted into the layers of vanadium pentoxide, the interlayer spacing is increased and the structure of the host material is supported and stabilized. Therefore, the fast and reversible insertion and extraction performance of charge and discharge ions can be improved, and the high rate and long cycle life of the layered vanadium-based positive electrode material can be achieved. The negative electrode sheet is a zinc foil with a surface coating. By defining the thickness of the surface coating to be 100 nm to 20 μm, the surface coating can prevent the zinc foil from directly contacting the electrolyte, and zinc will be deposited between the coating and the zinc foil during the charge and discharge process. In this way, the direct contact between zinc and the electrolyte is avoided, which helps to solve problems such as dendrites, corrosion and hydrogen evolution of the zinc negative electrode. Compared with the traditional aqueous zinc-ion battery, the electrochemical performance of this aqueous zinc-ion battery is enhanced.

A powder for use in a negative electrode of a battery, said powder comprising particles, wherein the particles comprise a carbonaceous matrix material and silicon-based domains dispersed in the carbonaceous matrix material, wherein the particles further comprise pores wherein at least 1000 cross-sections of pores comprised in a cross-section of the powder satisfy optimized conditions of size and size distribution, allowing the battery containing such a powder to achieve a superior cycle life and a production method of such a powder.

The invention discloses a high-rate lignin-based composite hard carbon negative electrode material as well as a preparation method and application thereof. According to the method, aniline and pyrrole are used as guest materials, lignin is used as a subject carbon source, and the guest materials are used for preparing the lignin-based hard carbon material through one-step high-temperature carbonization on a composite material obtained after the subject material is pretreated. The construction of high closed pore volume and large carbon interlayer spacing in the lignin-based hard carbon is realized, and abundant intercalation and filling sites are provided for sodium ions in a hard carbon layer and closed pores, so that high specific capacity and high platform capacity of the hard carbon negative electrode of the sodium ion battery are realized. And the prepared hard carbon negative electrode material has relatively high reversible specific capacity, excellent rate capability and cycling stability. The method proves the feasibility of modifying the lignin structure by using the intermolecular force, realizes high-value utilization of the lignin, and is beneficial to large-scale production.

The invention discloses a heterocyclic compound composition and an organic electroluminescent device. Wherein the heterocyclic compound combination comprises a hole injection layer compound and a light-emitting layer compound, the hole injection layer compound is selected from a first compound shown in the formula 1, the light-emitting layer compound contains a bi-component host material and a doping material, the bi-component host material comprises a first host and a second host, and the doping material comprises a second host and a third host. The first main body is selected from a compound shown in a formula 2, the second main body is selected from a compound shown in a formula 3-1 or a formula 3-2, the hole injection material (PD doped material) is matched with the GH bi-component main body material, and meanwhile, the first doped SP is used, so that the prepared device has excellent luminous efficiency and long service life. And meanwhile, by matching with the second doped GD, the luminous efficiency of the device and the device are further improved through the prepared sensitized device. # imgabs0 #, # imgabs1 #, # imgabs2 # and # imgabs3 #.

The invention discloses a luminescent material composition, ink, a luminescent device, a display panel and a display device. The luminescent material composition comprises a first host material and a second host material, and the second host material is configured to be capable of forming an exciplex under the action of external energy. The luminescent material composition provided by the invention can meet the requirements of products with high comprehensive performance.

The invention belongs to the field of organic electroluminescent materials, and discloses a host material, an organic electroluminescent material containing double hosts and an organic electroluminescent device. In the organic light-emitting device containing the double hosts, the first host compound has higher electron mobility and is stable in structure. According to the organic electroluminescent device, triplet excitons are dispersed on two main bodies by using a double-main-body material, triplet-triplet annihilation is reduced, the driving voltage of the organic electroluminescent device is reduced, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

The invention provides an organic electroluminescent material, a dual-host-containing organic electroluminescent material and an organic electroluminescent device.The organic electroluminescent material has a structure as shown in a general formula I. The dual-host-containing organic electroluminescent material comprises a first host material and a second host material, the first main body material has a structure shown in a general formula I, the second main body material has a structure shown in a general formula II, and the organic electroluminescent material or the organic electroluminescent material containing the double main bodies is applied to an organic electroluminescent device and has the advantages of low driving voltage, high luminous efficiency and long service life.

The invention belongs to the technical field of biological materials and ultrasonic printing, and particularly discloses a biological adhesive for ultrasonic printing and preparation and application thereof. The biological adhesive comprises a heat-sensitive main body material and a chemical adhesion component, the heat-sensitive main body material comprises hydroxybutyl chitosan, and the chemical adhesion component comprises polyacrylic acid-N-hydroxysuccinimide ester. The bioadhesive has excellent ultrasonic responsiveness, formability and bioadhesion performance, directional deposition, in-situ solidification and tissue surface adhesion can be achieved in a non-contact and accurately-controlled ultrasonic printing system, and the bioadhesive is suitable for various biomedical scenes such as tissue repair, minimally invasive medicine, biological device construction and drug delivery interface printing.

The invention discloses an ultra-flexible stretchable dimming film and a preparation method thereof, and relates to the technical field of dimming films, and the ultra-flexible stretchable dimming film comprises an upper transparent electrode layer, a dimming function layer and a lower transparent electrode layer which are sequentially stacked from top to bottom; the preparation method comprises the following steps: 1) preparing a main matrix material / ultraviolet curing resin mixture; 2) assembling the dimming film; and 3) ultraviolet light curing. According to the invention, through surface phosphonic acid functionalization treatment, covalent bond anchoring of cerium oxide nanoparticles is realized on a thermoplastic polyurethane fiber network; by constructing a full-thermoplastic polyurethane material system, the breakthrough of interfacial compatibility between a fiber reinforced phase and a polymer matrix is realized, so that the film has high tensile strain capacity and excellent fatigue resistance on the premise of keeping high transparency.

The invention relates to the technical field of energy storage, in particular to an iron monatomic modified carbon nanotube array, a preparation method and application of the iron monatomic modified carbon nanotube array in an aqueous zinc-iodine battery, simple and convenient solid-phase reaction and high-temperature carbonization strategies are adopted, carbon cloth serves as a substrate, ferric acetylacetonate, boric acid, polyethylene glycol and urea serve as an iron source, a boron source, a carbon source and a nitrogen source respectively, and the iron monatomic modified carbon nanotube array is prepared. And after high-temperature calcination, growing an iron monatomic modified carbon nanotube array on the carbon cloth in situ. The iron single atom not only enhances the chemical capture capability of the carbon nanotube on the polyiodide, but also promotes the oxidation-reduction conversion of iodine; the carbon nanotube array provides a physical space for limited adsorption of iodine species and effectively promotes ion diffusion. Therefore, the obtained water-based zinc-iodine battery shows high specific capacity and good cycling stability. The whole technological process is simple and convenient to operate, has industrial application prospects, and provides a novel preparation method for the carbon-based iodine positive electrode host material of the aqueous zinc-iodine battery.

An organic electroluminescence device includes: an anode; a cathode; a first emitting layer; and a second emitting layer provided between the first emitting layer and the cathode, in which the first emitting layer contains, as a first host material, a first compound that has at least one group represented by a formula (11A) below and that is represented by a formula (1) below, the second emitting layer contains, as a second host material, a second compound represented by a formula (2) below, and the first emitting layer and the second emitting layer are in direct contact with each other.

The application relates to the technical field of display panels, and discloses a display panel, a display screen and electronic equipment. The CGL of the display panel comprises N-CGL, i-CGL and P-CGL which are stacked in sequence. The LUMO energy level of the organic material corresponding to the i-CGL is less than or equal to -3.5 eV, and the work function of the inorganic material corresponding to the i-CGL is greater than or equal to 3.5 eV. In particular, the Fermi energy level of the i-CGL is lower than that of the P-CGL host material, and the thickness of the i-CGL can be any value less than or equal to 15 nm (especially less than 5 nm). In this case, the charge generation capability of the N-CGL, the i-CGL and the P-CGL in the direction parallel to the thickness of the CGL is improved, the sheet resistance in the direction perpendicular to the thickness of the CGL is greater than 1 GΩ / Dia, the sub-pixel can realize high-efficiency and low-power-consumption light emission, the voltage value obtained by voltage division from the driving voltage of another sub-pixel is small, and the crosstalk between the sub-pixels is reduced or even eliminated.

The invention belongs to the technical field of organic electroluminescence, and discloses an arylamine compound and a luminescent device. The arylamine compound has a structural general formula as shown in a formula (1) or a formula (2), wherein a ring A in the formula (1) is selected from one of formulas (1-1)-(1-4); the ring A in the formula (1) is selected from one of formulas (2-1)-(2-2); and any two adjacent * represent condensation sites of the ring A and naphthyl in the formula (1) and the formula (2). The arylamine compound provided by the invention has the advantages of low driving voltage, high luminous efficiency, long device life and the like, and can be used as a main body material in preparation of light-emitting devices.

The invention provides a light-emitting material, a light-emitting device and a display device, belongs to the technical field of display, and can solve the problems of low efficiency and service life of an existing light-emitting device. The luminescent material comprises a host material and a guest material, the host material is selected from molecules with a first general formula, a second general formula or a third general formula; the first general formula is # imgabs 0, the second general formula is # imgabs 1, the third general formula is # imgabs 2, R1 to R6 are electron donating groups and are selected from electron-rich arylamine groups containing at least one nitrogen atom; the guest material is selected from molecules having a fourth general formula; a fourth general formula: # imgabs3 # X1 is an electron donating group and is selected from electron-rich arylamine groups containing at least one nitrogen atom; x2 is an electron withdrawing group; and R11 and R21 are respectively and independently selected from at least one of hydrogen, deuterium, halogen group, alkyl group, cycloalkyl group, heteroalkyl group, aralkyl group, alkoxy group, aryloxy group, amino group and silyl group.

The invention belongs to the field of organic electroluminescent materials, and discloses a blue light host material, a preparation method and an organic electroluminescent device. The structure of the blue light host material is as shown in a chemical formula I: # imgabs0 #. After the blue light host material provided by the invention is applied to the organic electroluminescent device, the driving voltage of the photoelectric device can be reduced, the luminous efficiency of the photoelectric device can be improved, and the service life of the photoelectric device can be prolonged.

The invention belongs to the technical field of organic photoelectric materials, and discloses a phosphorescent host material, a preparation method and an organic electroluminescent device.The phosphorescent host material compound is subjected to carbazolyl and triazine group substitution at the first position and the second position of a dibenzoheterocycle, and a phenyl mother nucleus structure is introduced to the substituted same-side aromatic ring of the dibenzoheterocycle, so that the phosphorescent host material is obtained. Structural molecules conforming to the general formula (1) or the general formula (2) are low in symmetry, relatively high in structural rigidity and large in steric hindrance, so that the triplet state energy can be improved, the phenomenon of energy return can be avoided, and meanwhile, the energy loss in the molecules can be reduced, so that the overall performance of the device is more excellent; in addition, the structure conforming to the general formula is more beneficial to charge transfer, so that the driving voltage is reduced, and the luminous efficiency is enhanced.

The invention discloses a method for detecting an ultrahigh-strength fastener and a related device, and the method comprises the following steps: preparing a stress memory type nano composite coating containing a matrix material, core-shell structure stress sensitive nanoparticles and a fluorescent indicator, and carrying out coating treatment on the surface of the ultrahigh-strength fastener; applying a multi-stage dynamic load to the ultrahigh-strength fastener; light sources with different wavelengths are adopted to activate the coating, so that the fluorescent indicator generates fluorescent signals corresponding to the dislocation density, the microcracks and the subcrystal structure in the fastener respectively; performing multi-band analysis processing on the fluorescence signal to obtain fluorescence characteristic parameters; and the microstructure evolution state and the residual life of the fastener are determined through contrastive analysis with standard fastener parameters. According to the technical scheme, nondestructive testing of microstructure evolution of the ultrahigh-strength fastener under the high-frequency dynamic load can be achieved, the incidence relation between transient stress waves and microstructure long-term evolution is converted into measurable optical signals, and the technical problem of cross-time-scale detection is solved.

The present application relates to the technical field of displays, and specifically relates to a deuterated compound, a light-emitting host material composition and a light-emitting device comprising same, and the use. The deuterated compound provided in the present application has a structure as shown below: (1), and a substituent comprises deuterium, such that an organic electroluminescent device comprising the deuterated compound can have a relatively high light-emitting efficiency and a relatively long service life.

The invention discloses a light-emitting device and a preparation method thereof and a display device, a light-emitting layer comprises a host material, a sensitizer and a fluorescent object material, the ratio of the doping concentration of the sensitizer to the doping concentration of the fluorescent object material is high, and the light-emitting device aims at solving the problems that an existing light-emitting device is low in efficiency and short in service life. The invention further discloses a preparation method of the light-emitting device, the light-emitting layer is formed on the surface of the first electrode through linear source vacuum evaporation, the host material, the sensitizer and the fluorescent object material are placed in the corresponding evaporation sources respectively, the evaporation sources of the fluorescent object material are scanned preferentially, the evaporation rates of the three evaporation sources are adjusted, and the light-emitting device is obtained. The doping concentration of the sensitizer and the fluorescent guest material is gradually increased or decreased along with the increase of the thickness of the light-emitting layer; and evaporating a second electrode on the surface of the light-emitting layer.

The invention provides a host material, a dual-host-containing organic electroluminescent material and a preparation method and application thereof, the host material has a structure as shown in a general formula 1, the dual-host-containing organic electroluminescent material comprises a first host material and a second host material, and the mass ratio of the first host material to the second host material is 1: 99-99: 1, the first main body material is a compound with a structure as shown in a general formula 1, and the second main body material has a structure as shown in a general formula 2. Triplet excitons are dispersed on two main bodies by using the double main body material, so that triplet-triplet annihilation (TTA) is reduced, the driving voltage of the organic electroluminescent device is reduced, and the driving efficiency of the organic electroluminescent device is improved. And the luminous efficiency and the service life of the device can be improved.

The invention belongs to the field of organic electroluminescent materials, and discloses an organic electroluminescent material, an organic electroluminescent material containing double hosts and a luminescent device. The double-host-containing organic electroluminescent material comprises a first host material and a second host material, the first host material is the organic electroluminescent material and has a compound with a structure shown in a general formula 1, and the second host material is a compound with a structure shown in a general formula 2. The organic electroluminescent material or the organic electroluminescent material containing the double hosts is applied to the organic electroluminescent device, and has the advantages of low driving voltage, high luminous efficiency and long service life.

The invention discloses an organic electroluminescent material and a device thereof. The organic electroluminescent material is a compound with a structure as shown in a formula 1, can be used as a host material in an organic electroluminescent device, and can provide better device performance, such as high efficiency, especially unexpected life prolonging. Also disclosed are an organic electroluminescent device, a compound composition, and an electronic device comprising the compound.

The invention relates to a ceramic filler for catalytic desorption of carbon dioxide and a preparation method thereof, and the ceramic filler comprises, based on the total weight of the ceramic filler, 70-95 wt% of a matrix material, 0.8-20 wt% of an active component loaded on the matrix material, and 0.3-15 wt% of an organic dopant; the matrix material comprises one or more of porous materials; the active component is selected from one or more of metal oxides and non-metal oxides; wherein the metal is selected from one or more of IIIA group elements, IVB group elements and VIII group elements, and the nonmetal is selected from one or more of IIIA group elements and IVA group elements. In the thermal desorption process of the ceramic filler, reaction barriers can be reduced, the reaction rate can be increased, and the desorption temperature of an organic amine absorbent can be reduced.