81results about How to "Improve humidity stability" patented technology

The invention discloses a Spiro-OMeTAD / PbS composite hole transport layer based perovskite solar cell and a preparation method therefor. The perovskite solar cell comprises a transparent conductive substrate, an oxide electron transport layer, a perovskite solar light absorption layer, the Spiro-OMeTAD / PbS composite hole transport layer and a metal electrode. The perovskite thin film solar cell adopts a simple process; a lead sulfide thin film can be prepared by a large-area evaporation method; and the lead sulfide thin film can be inserted between the Spiro-OMeTAD and the metal electrode layer to be used as a buffer layer. The Spiro-OMeTAD / PbS composite hole transport layer based perovskite solar cell achieves a high photoelectric conversion efficiency which is as high as 15.11%; the lead sulfide, which is used as the buffer layer between the hole transport layer and the metal electrode, has higher hole mobility, and higher humidity stability and light and heat stability, so that the recombination of electron-hole pairs can be reduced; meanwhile, the stability of the cell can be improved; compared with other buffer layer materials, the lead sulfide can protect a device and improve the performance of the device as well; and therefore, a positive promotion effect is realized on the industrial development of the solar cell.

The invention discloses a new crystal form omega-crystal form of ivabradine hydrochloride and preparation method thereof. The mixture of the ivabradine hydrochloride and water is heated and dissolved completely and then is frozen and dried to obtain delta-crystal form crystal. The crystal form has stable temperature and humidity, does not contain any organic solvent and moisture and is applicable to preparation technical process and a long period of storage. The medicine composite taking the crystal form composite as active ingredient can be used to treat or prevent angina, myocardial infarction and relative arhythmicity.

The invention discloses a biomass material drying system comprising a feeding device, a heating device and a drying device, wherein the feeding device and the heating device are respectively connected with the drying device. The biomass material drying system also comprises a control device which comprises a control unit and more than one humidity sensors connected with the control unit, wherein the control unit is respectively connected with the feeding device, the heating device and the drying device and controls the feeding device, the heating device or / and the drying device according to the humidity of material to be dried, which is obtained by the humidity sensors. The control unit of the invention can determine the humidity of the material to be dried in the drying device according to signals fed back from the humidity sensors, and the heat output of the heating device and the feeding amount of the drying device are adjusted according to the humidity so as to accurately control the drying degree of biomass in a drier, increase the humidity stability of the biomass, avoid missed drying and over-drying and improve the drying efficiency.

The invention discloses 2-(3-cyano-4-isobutoxy phenyl)-4-methyl-5-thiazolyl formic acid of a new delta-crystal form and a preparation method thereof. The method comprises the steps of: heating a mixture of Febuxostat and absolute ethanol till completely dissolving, and then filtering to obtain an alcoholate; putting the alcoholate in a 80 DEG C baking oven for baking for 2 hours under 2mmHg vacuum decompression to obtain crystals of the delta-crystal form, which has excellent temperature and humidity stability, no any organic solvents or water and is suitable for preparation process and long-term storage. A medicine composite which takes the compound of the crystal form can be used for reducing uric acid in blood and treating all clinical hyperlithic situations, such as uarthritis.

The invention discloses a method for preparing zirconium metal organic framework (Zr-MOF) nanotubes. The method comprises the steps as follows: dissolving zirconium metal salt in a solvent DMF, adding1,3,6,8-tetra(4-carboxylbenzene)pyrene and a regulator, then, performing dispersion, carrying out solvothermal reaction on a mixture obtained by dispersion treatment, after the reaction is completed,cooling a product to room temperature, and performing drying after washing to obtain the Zr-MOF nanotubes. The method adopts a simple process, requires no template and can obtain the Zr-MOF nanotubesby a one-step solvothermal method. The nanotubes obtained by the method have good chemical stability, thermal stability, humidity stability and excellent photoluminescence performance, and as the nanotubes are composed of nanoparticles, the nanotubes facilitate diffusion transfer of substances inside and can be applied to rapid fluorescent response detection of guest molecules, catalysis of hydrolysis of organic phosphorus compounds and various Lewis acid catalytic reactions.

The invention relates to a method for preparing a konjac glucomannan composite humidity conditioning agent. The method comprises the following steps of: (a) weighing sodium hydroxide, adding the weighed sodium hydroxide to deionized water for dissolving, adding acrylic monomers into sodium hydroxide liquid, and uniformly stirring at the temperature of 65-70 DEG C; (b) weighing potassium sulfate, activated halloysite with the particle size of 200 meshes, konjac glucomannan, nano silver-loaded antimicrobial powder, N,N'-methylene-bis-acrylamide and urea, sequentially adding the weighed potassium sulfate, activated halloysite, konjac glucomannan, nano silver-loaded antimicrobial powder, N,N'-methylene-bis-acrylamide and urea into a reactor containing the liquid obtained in the step (a), and carrying out reaction for 20-30 min at the temperature of 65-70 DEG C, thereby obtaining a viscous solid product; and (c) after the polymer obtained in the step (b) is cooled to room temperature, drying for 4-5 hours at the temperature of 145-150 DEG C, carrying out decomposition and foaming through the urea so as to obtain a porous humidity conditioning material, and crushing the porous humidity conditioning material for 2-3 min by using a crusher, thereby obtaining humidity conditioning material powder with the particle size of 100-200 meshes. According to the method for preparing the konjac glucomannan composite humidity conditioning agent, the konjac glucomannan composite humidity conditioning agent has the advantages of large moisture content / capacity, good relative humidity stability, simplicity and convenience in preparation, low cost, good effect, environmental friendliness and no pollution.

The invention discloses a drying control method of biomass materials, which comprises the following steps: (1) conveying the biomass to be dried to a drying device by using a conveying device; (2) measuring the humidity of the biomass to be dried and / or the humidity of the biomass at the entrance of the drying device; (3) heating the biomass in the drying device by using the drying device, wherein a control unit sets the feeding speed and / or heating speed initially according to the humidity measured in the step (2); and (4) measuring the humidity of the biomass at the exit of the drying device, wherein the control unit dynamically regulates the feeding speed and / or heating speed according to the measured humidity, wherein the heating process also comprises a step of regulating the heated position of the biomass. In the method, the feeding speed and / or heating speed are dynamically regulated according to the humidity of the biomass; and thus, the dryness of the dried material in the dryer can be controlled accurately, the humidity stability of the dried material is increased, under-drying and over-drying phenomena are eliminated and the drying efficiency is improved.

The invention relates to a triazole ionic liquid-doped perovskite solar cell and a preparation method thereof. According to the preparation method, [EATZ]I is added into a perovskite precursor MAI solution, and a light-absorbing layer film is prepred through a spin-coating method, which is called an MA / EATZ method (E represents ethyl) for short. Because -NH2 in ionic liquid contains lone pair electrons, the unsaturated Pb<2+> defects in perovskite films can be effectively passivated under the action of a Pb-N coordination bond, and charge recombination is inhibited; in addition, due to the formation of the Pb-N coordination bond, the probability is provided for the self-assembly behavior of hydrophilic ILs on the surface of the perovskite, so that alkyl chains in the ILs are almost vertically distributed along the surface of the perovskite, and the improvement of the humidity stability of the perovskite solar cell is successfully realized. Meanwhile, due to the excellent hydrophilic performance of the ILs, the hydrophilicity of the perovskite precursor solution on the surface of a titanium dioxide electron transport layer is improved, and crystal nucleus formation and crystal growth are facilitated. And the crystallization rate of the perovskite in the thermal annealing process is reduced, so that the growth of large-size crystal grains is caused.

The invention relates to an inverted gradient bulk heterojunction perovskite solar cell on the basis of a gallium oxide protective layer and a method for preparing the inverted gradient bulk heterojunction perovskite solar cell. The inverted gradient bulk heterojunction perovskite solar cell which is a perovskite cell comprises a transparent conductive substrate, a hole transport layer, a perovskite light absorption layer, an electron transport layer and metal electrodes. The inverted gradient bulk heterojunction perovskite solar cell and the method have the advantages that a high-quality gallium oxide thin film is prepared by the aid of low-temperature deposition atomic layer bottom sinking processes with simple technologies and is used as a cushion layer between the electron transport layer and the metal electrodes, and accordingly the photovoltaic performance of devices can be effectively improved; the gallium oxide thin film with inorganic and hydrophobic characteristics can be used as the protective layer, accordingly, cell erosion due to external environments can be effectively isolated, and the stability of the devices can be enhanced; non-fullerene materials IDIC are dissolved in a green and environment-friendly solvent ethyl acetate to prepare gradient heterojunction perovskite thin films, accordingly, defects of perovskite can be effectively passivated, the performance of the devices can be enhanced, and thin film preparation toxic environments can be relieved.

The invention discloses a non-lead perovskite photoelectric functional material, a solar cell and a preparation method and application of the non-lead perovskite photoelectric functional material. Thechemical formula of the non-lead perovskite photoelectric functional material is ABX4, wherein A is a hydrophobic phenyl cation, B is a trivalent metal ion, and X is a halide ion. The prepared non-lead perovskite photoelectric functional material has a quasi-three-dimensional crystal structure and has humidity stability which lasts for one year or above; according to the non-lead perovskite photoelectric functional material C6H5NH3BiI4, the toxic lead element is replaced with the nontoxic bismuth element, CH3NH3 is replaced with C6H5NH3 with hydrophobicity, and the non-lead perovskite photoelectric functional material has the characteristics of nontoxicity, environment protection and high stability. In addition, the C6H5NH3BiI4 has good solubility in ethyl alcohol, and environment-friendly and low-toxicity ethyl alcohol is used as a solvent, so that natural environment protection is facilitated.

The invention discloses a perovskite wideband flexible light detector and a preparation method thereof. The flexible light detector consists of a flexible substrate and the following elements arranged sequentially on the flexible substrate: a perovskite film, an upconversion particle layer with a thickness of 10-50 nanometers, and a metal electrode disposed directly on the upconversion particle layer. The preparation method comprises the following steps: Step 1: preparing a perovskite crystal by any one of following methods on the flexible substrate: vacuum depositing, solution spin coating, printing and spraying to form a perovskite film; Step 2: performing spin coating or printing directly on the perovskite film to prepare upconversion particles with a thickness of 10-50 nanometers to obtain an upconversion particle layer and obtaining a perovskite / upconversion particle composite composed of the perovskite film and the upconversion particle layer; and Step 3, performing the vacuum evaporation directly on the perovskite / upconversion particle composite for a metal electrode, and preparing out a perovskite wideband flexible light detector able to respond the visible-near infrared band.

The invention discloses a method for improving the humidity stability of a perovskite material, that is to say fluorine-carbon hydrophobic chain molecules RNH2 are introduced to perform surface modification on the perovskite material to improve the humidity stability of the perovskite material. The method comprises the two steps of preparation of the perovskite material and mixed modification of the perovskite material and the fluorine-carbon hydrophobic chain molecules. According to the method provided by the invention provided by the invention, the hydrophobic chain molecules are used for modify the perovskite material, amino is combined with perovskite so that the perovskite material is reduced in surface defect and the service life of the carriers is prolonged, the hydrophobicity of the material surface can be improved by alkyl chains and C-F functional groups, finally both photoelectric property and humidity stability performance of the perovskite material can be significantly improved, and meanwhile, the service life of the perovskite-based photoelectric device is prolonged, so that the perovskite material has good development prospect in the actual application of the photoelectric field.

A red-emitting phosphor comprises a nitride-based composition represented by the chemical formula M(x / v)M′2Si5-xAlxN8:RE, wherein: M is at least one monovalent, divalent or trivalent metal with valence v; M′ is at least one of Mg, Ca, Sr, Ba, and Zn; and RE is at least one of Eu, Ce, Tb, Pr, and Mn; wherein x satisfies 0.1≦x<0.4, and wherein the phosphor has the general crystalline structure M′2Si5N8:RE, Al substitutes for Si within the crystalline structure, and M is located substantially at interstitial sites. Furthermore, the phosphor is configured such that 1,000 hours of aging at 85° C. and 85% humidity results in a deviation in chromaticity coordinates CIE Δx and Δy of less than about 0.03. Furthermore, the phosphor absorbs radiation in the UV and blue and emits light with a photoluminescence peak wavelength within the range from about 620 to 650 nm.

The invention discloses a perovskite solar cell doped with a multifunctional additive and a preparation method of the perovskite solar cell. The perovskite material is a bipolar semiconductor materialwhich has the characteristics of low cost, easiness in film formation, narrow band gap, high absorption coefficient, high carrier mobility and the like; the perovskite absorption layer of the cell comprises 2, 2-difluoromalonamide. The 2, 2-difluoromalonamide contains multiple organic functional groups (-NH2,-C = O,-F) and can interact with components in the perovskite material respectively, so that the quality of the perovskite thin film is effectively improved, defects of the perovskite thin film are passivated, recombination is reduced, decomposition of the thin film is inhibited, and finally the efficiency and stability of the perovskite solar cell are improved.

The invention provides a cyclopropanecarboxamide derivative F crystal form (please see the specification for the formula) in the formula (I). According to the XRPD illustration of the crystal form, diffraction peaks exist when 2Q is equal to 8.717, 9.758, 10.299, 10.8, 12.879, 15.401, 16.64, 16.92, 17.859, 18.759, 19.499, 20.678, 22.841, 23.178, 23.88, 24.479, 25.958, 27.06, 28.039, 29.521 and 31.121, and the error range of the 2Q value is + / -0.2. The cyclopropanecarboxamide derivative F crystal form has good high-temperature stability, high-humidity stability and illumination stability. Moreover, low moisture absorption performance is achieved. The cyclopropanecarboxamide derivative F crystal form can be applied to drugs for treatment or prevention of JAK-participated inflammation and autoimmunity diseases, proliferative diseases, graft rejective reactions and congenital cartilage deformation or diseases caused by IL6 oversecretion, and good bioavailability is achieved. Meanwhile, qualitative and quantitative information is provided, which is of important significance to further studying the curative effect of the solid drugs.

A volatile organic waste gas adsorbent having humidity stability and consisting of an MOFs / CNTs composite material is disclosed. The mass percentage of CNTs in the adsorbent is 0.5-10%. The adsorbentadopts the MOFs / CNTs composite material, VOC adsorption performance of the adsorbent is less affected by humidity, and the adsorbent has advantages of high VOC adsorption capability and high humiditystability.

The purpose of the present invention is to provide: a retardation film which uses a low-substituted cellulose ester and has improved retardation after saponification and improved wet heat stability of internal haze; a polarizing plate which uses the retardation film; and a liquid crystal display device. An optical film of the present invention contains a cellulose ester and a compound represented by general formula (1), and is characterized in that the compound has an average degree of substitution within the range of 3.0-6.0 and contains a component having a degree of substitution of 4 or less in an amount of 30-80% by mass (inclusive). (In the formula, R1-R8 each represents a substituted or unsubstituted alkylcarbonyl group or a substituted or unsubstituted allylcarbonyl group, and R1-R8 may be the same as or different from one another.)

The invention discloses a method for preparing an alternate layered biodegradable polymer barrier material with excellent water vapor and oxygen barrier properties. The method comprises the main content as follows: the water vapor barrier property and the stability of the barrier property on humidity are improved through adding hydrophobic substances to water vapor barrier layers, and the diffusion path of oxygen is increased to improve the oxygen barrier property through adding a filler with large specific surface area to an oxygen barrier layer; a multi-layer structure of which the water vapor barrier layers are arranged at the outmost layer and the internal oxygen barrier layer and the water vapor barrier layers are alternately arranged is designed by using a coextrusion system, thereby obtaining excellent water vapor and oxygen barrier properties and the stability of the properties on the humidity at the same time; dimensions and form structures of a disperse phase and the filler are optimized to further improve the barrier properties through stretching and shearing force fields in the coextrusion process, and meanwhile, the mechanical property is improved. The method is a continuous production process and is simple in process, products of different batches are stable in quality index, large-scale industrial production can be carried out, and the method has wide industrialization and market prospects, and is of great significance in theoretical research and application and development of a composite material.

The invention provides a cyclopropanecarboxamide derivative G crystal form (please see the specification for the formula) in the formula (I). According to the XRPD illustration of the crystal form, diffraction peaks exist when 2Q is equal to 8.376, 9.76, 10.5, 12.402, 13.362, 14.081, 14.958, 17.16, 17.758, 19.358, 21.579, 22.34, 22.981, 23.241, 24.459, 24.919, 25.443, 26.7, 27.419, 27.818, 28.378, 29.461, 31.001, 33.56, 34.5 and 35.58, and the error range of the 2Q value is + / -0.2. The cyclopropanecarboxamide derivative G crystal form has good high-temperature stability, high-humidity stability and illumination stability. Moreover, excellent solubility is achieved. The cyclopropanecarboxamide derivative G crystal form can be applied to drugs for treatment or prevention of JAK-participated inflammation and autoimmunity diseases, proliferative diseases, graft rejective reactions and congenital cartilage deformation or diseases caused by IL6 oversecretion, and good bioavailability is further achieved. Meanwhile, qualitative and quantitative information is provided, which is of important significance to further studying the curative effect of the solid drugs.

The invention provides a cyclopropanecarboxamide derivative H crystal form (please see the specification for the formula) in the formula (I). According to the XRPD illustration of the crystal form, diffraction peaks exist when 2Q is equal to 9.341, 13.019, 14.2, 16.66, 17.201, 18.37, 18.901, 20.522, 20.82, 21.141, 21.759, 23.001, 23.441, 24.461, 25.059, 26, 26.539, 28.8, 29.661 and 33.657, and the error range of the 2Q value is + / -0.2. The cyclopropanecarboxamide derivative H crystal form has good high-temperature stability, high-humidity stability and illumination stability. Moreover, low moisture absorption performance is achieved. The cyclopropanecarboxamide derivative H crystal form can be applied to drugs for treatment or prevention of JAK-participated inflammation and autoimmunity diseases, proliferative diseases, graft rejective reactions and congenital cartilage deformation or diseases caused by IL6 oversecretion, and good bioavailability is further achieved. Meanwhile, qualitative and quantitative information is provided, which is of important significance to further studying the curative effect of the solid drugs.

A radio wave absorption material is characterized to be obtained by firing a ferrite material that is formed by adding an accessory component, 0.1 to 2 wt % of CoO, to an oxide magnetic material containing main components, 30 to 49.5 mol % of Fe2O3, 0.5 to 20 mol % of Mn2O3, 5 to 35 mol % of ZnO, 0.2 to 15 mol % of (Li0.5Fe0.5)O and MnO as the rest. In the above-mentioned composition, part of ZnO may be replaced with 20 mol % or less of CuO. This radio wave absorption material has high strength and humidity stability and has excellent radio wave absorption performance although low in cost.

A radio wave absorption material is characterized to be obtained by firing a ferrite material that is formed by adding an accessory component, 0.1 to 2 wt % of CoO, to an oxide magnetic material containing main components, 30 to 49.5 mol % of Fe2O3, 0.5 to 20 mol % of Mn2O3, 5 to 35 mol % of ZnO, 0.2 to 15 mol % of (Li0.5Fe0.5)O and MnO as the rest. In the above-mentioned composition, part of ZnO may be replaced with 20 mol % or less of CuO. This radio wave absorption material has high strength and humidity stability and has excellent radio wave absorption performance although low in cost.

The invention discloses a tin-based perovskite solar cell with optimized components and a preparation method thereof. The tin-based perovskite solar cell structurally comprises an indium tin oxide (ITO) conductive glass layer, an electron transport layer, a perovskite light absorption layer, a hole transport layer and a silver electrode layer in sequence, the material of the electron transport layer is PC61BM. Phenylethylamine halide salt is introduced into the perovskite precursor solution, thin film crystallization is improved, non-radiative recombination is inhibited, and the charge extraction capacity is improved. The phenylethylamine halide salt and the phenylethylamine halide salt derivative remarkably improve the photoelectric property of the tin-based perovskite solar cell, so that the photoelectric conversion efficiency of the tin-based perovskite cell can reach 10.51%, the stability of the prepared tin-based perovskite cell is remarkably improved, and further development of the tin-based perovskite cell is promoted.

The invention discloses a perovskite solar cell preparation method for enhancing humidity resistance stability and photoelectric performance. Firstly, PEDOT: PSS solution was spin-coated on the ITO conductive glass substrate. Prepare PbI2 solution, 4-tert-butylpyridine was added to the PbI2 solution, and the mixture was heated and stirred to obtain PbI2-tBP precursor solution, spin-coated on glasssubstrate to obtain porous and hydrophobic PbI2-tBP film; spin-coating CH3NH3I and PbI2-tBP to obtain CH3NH3PbI3-tBP functional layer; And then spin-coating a layer of PC61BM to prepare an electron transport layer; At last, a lay of silver thin film is evaporate on that solar cell device to make the solar cell device. As that process of the invention is simple and repeatable, raw materials are easy to obtain and the cost is controllable, the humidity resistance stability and the photoelectric performance of the prepare device are remarkably improved, and the practical application requirementsof the perovskite solar cell in the photovoltaic field are well met.

The invention is suitable for the technical field of solar cells, and provides a laminated solar cell and a manufacturing method thereof. The laminated solar cell comprises a perovskite cell and a crystalline silicon cell which are arranged in a laminated mode, the perovskite cell comprises a first surface, the first surface is located on the side, away from the crystalline silicon cell, of the perovskite cell, the crystalline silicon cell comprises a second surface, and the second surface is located on the side, away from the perovskite cell, of the crystalline silicon cell; the laminated solar cell further comprises a water absorption layer located on the first surface and / or the second surface. Therefore, because the first surface and / or the second surface are / is provided with the water absorption layer, water molecules in the air can be absorbed by the water absorption layer when contacting with the water absorption layer, thereby reducing the damage of water vapor to the perovskite cell, and facilitating the improvement of the humidity stability of the laminated solar cell.

The invention provides an air-conditioning box capable of removing airborne molecular contaminants. The air-conditioning box comprises an air-conditioning box housing and an intake valve, a primary and mediate-efficiency filter, a pre-heating pipe coil, a pre-cooling pipe coil, a recooling pipe coil, a reheating pipe coil, a fan, a high-efficiency filter and an exhaust valve which are arranged inside the air-conditioning box housing sequentially. The inside of the air-conditioning box is also provided with a water mist washing system which is positioned between the precooling pipe coil and the recooling pipe coil. Compared with the prior air-conditioning box, the air-conditioning box of the invention can greatly improve the airborne molecular contaminant removal efficiency and effectively improve the stability of air humidity.

The invention discloses a preparation method of a solar cell with a pyrene-containing perfluorinated compound passivated perovskite thin film, and belongs to the technical field of perovskite solar cells. The preparation method comprises the following steps: uniformly dispersing a perfluorinated compound containing a pyrene structure into an anti-solvent in an anhydrous oxygen-free environment toobtain a perfluorinated compound solution containing the pyrene structure; S2, spin-coating the perovskite precursor solution on conductive glass deposited with an electron transport layer for 30-35 seconds, adding the perfluorinated compound solution containing the pyrene structure obtained in the step S1 in the spin-coating process, continuously spin-coating for 5-10 seconds, and annealing to form a perfluorinated compound modified perovskite thin film containing the pyrene structure; and then spin-coating a hole transport layer on the perfluorinated compound modified perovskite thin film containing the pyrene structure, and evaporating a metal electrode on the hole transport layer to obtain the solar cell containing the pyrene perfluorinated compound passivated perovskite thin film. Theperfluorinated compound containing the pyrene structure is introduced into the perovskite solar cell through an anti-solvent method, and the method is simple and easy to operate.