34 results about "J-aggregate" patented technology

An imaging element having a photoelectric conversion film which has a laminated structure comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes, wherein at least one of the p-type semiconductor and the n-type semiconductor contains an organic compound with controlled orientation; a photoelectric conversion film having at least one organic dye compound, wherein the organic dye compound forms a J aggregate, or the angle between the spectral absorption transition dipolar moment of the organic dye compound and the photoelectric conversion film plane is 40° or less, a photoelectric conversion element and an imaging element; and a method of applying an electric field thereto, and an imaging element which comprises a photoelectric conversion film (a photosensitive layer) having a bulk heterojunction layer as an intermediate layer, or a photoelectric conversion film having two or more repeating structure units of a pn junction layer comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes.

A light-sensitive silver halide photographic film material has been provided, said film material comprising a transparent support and on both sides thereof at least one light-sensitive emulsion layer having spectrally and chemically sensitized tabular silver halide grains rich in silver bromide, further having silver iodide in an amount of less than 3 mole % based on silver, with two flat parallel {111} crystal faces, said grains accounting for a total projective surface of said parallel crystal faces in said emulsion of at least 50%, further having an average aspect ratio of at least 2:1, a grain thickness of from 0.05 up to 0.15 mum, a site-directing azacyanine compound satisfying the general formulae disclosed herein in an amount of not less than 1x10-4 mole per mole of silver halide coated and one or more J-aggregating spectrally sensitizing dye(s), wherein a molar ratio amount between said site directing compound and said J-aggregating spectrally sensitizing dye(s) is at least 1:6 for a grain coverage of said {111} tabular grains exceeding 50%.A radiographic screen / film combination has also been described comprising said light-sensitive silver halide photographic film material and two supporting or self-supporting X-ray intensifying screens) comprising luminescent phosphors, wherein by contacting the film material with a sandwich of a pair of said intensifying screens and exposing said combination to X-rays, emission of radiation by said luminescent phosphors in the wavelength range for which said material has been made spectrally sensitive provides a black-and-white diagnostic image after processing of said exposed radiographic film material.

The present invention is related to electroluminescent polymer materials for use in optoelectronic devices. The electroluminescent polymer materials of the invention may comprise a polymer and an electroluminescent organic component, where the water-soluble polyanilin having an electron-hole conductivity may be used as the polymer and one of a cyanine dye, a porphyrin, in the form of J-aggregates, may be used as the electroluminescent organic component.

The invention discloses a biomass organic fertilizer for improving soil aggregates. The biomass organic fertilizer is prepared from the following raw materials in parts by weight: 34-36 parts of flue-cured tobacco leaf powder, 6-7 parts of bentonite, 3-4 parts of polyaspartic acid, 5-6 parts of diammonium phosphate, 9-10 parts of wheat gluten, 2-3 parts of nickel sulfate, 3-5 parts of ferric citrate, 58-64 parts of crop straws, 75-77 parts of elodea, 2-3 parts of a cellulase preparation, 4-5 parts of a protease preparation, 7-9 parts of tamarind fruits and proper amount of water. According to the biomass organic fertilizer disclosed by the invention, biological carbon and a plurality of types of organic matters are added, so that the content of water-stable large aggregates in the soil can be improved in short time and the porosity of the soil is enhanced; bacterial agents are utilized so that a beneficial bacterium community in the soil is enriched and a micro-biological environment of the soil is improved; and the planting performance of the soil can be improved without the need of carrying out engineering modification on the soil and the additional value of the soil is improved.

The invention provides a preparation method and application of an indocyanine green J aggregate. The indocyanine green J aggregate is used as a photothermal therapeutic agent, and has the advantages of simple preparation method, strong safety and good photothermal effect.

A radiographic silver halide film material and a radiographic screen / film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.

The invention relates to high anti-cracking large volume radiation-proof concrete. The concrete is characterized by comprising water, gelled material, fine aggregate, coarse aggregate, water reducing agent and fibers, wherein the gelled material consists of cement and mineral admixture, and the fibers consist of steel fibers and lead borate polyethylene fibers; and the components have the following proportion: 150 to 170 kg / m<3> of water, 250 to 450 kg / m<3> of cement, 100 to 300 kg / m<3> of mineral admixture, 1,000 to 1,800 kg / m<3> of fine aggregate, 1,500 to 2,200 kg / m<3> of coarse aggregate,water reducing agent in an amount which is 0.6 to 1.2 percent of the total mass of the gelled material, steel fibers in an amount which is 0.5 to 1.5 percent of the total volume of the gelled material, and lead borate polyethylene fibers in an amount which is 0.8 to 1.2 percent of the total volume of the gelled material. The concrete has good physical property and good cracking resistance, and further enhances the radiation resistance.

A viewing device for a stereo projection system, having a first and a second viewing window, each having an optically filtering filter layer system, wherein each viewing window has a filter spectrum in the visual spectral range having a plurality of pass bands that are separated from each other by blocking regions, and wherein each pass band of the filter spectrum of the first viewing window is covered by an associated blocking region of the filter spectrum of the second viewing window. Each filter layer system can be designed as an absorption filter layer system having a plurality of substances absorbing in differing spectral ranges, wherein at least one of the absorbing substances is a cyanine dye in the supramolecular configuration of a J-aggregate.

The assembly is made up of: a) a support including a mesoporous coating whose pores have an average diameter dimensioned so as to enable molecules from the family of cyanines to penetrate them, and b) a layer of molecules from the family of cyanines and organized into J-aggregates within the pores of the coating. The assembly moreover includes Quantum Dots located within the same pores as those containing the J-aggregates, the Quantum Dots maintaining J-aggregates structure. A method for producing such an assembly is also described.

A fluorescent material includes at least one organic compound with molecular stacking of H-aggregate or J-aggregate. When a first color light illuminates the fluorescent material, the organic compound with molecular stacking of H-aggregate or J-aggregate converts the first color light to a second color light.

The invention relates to a preparation method and application of a J aggregate photothermal nano-agent constructed based on dyes and polymers. The nanophotothermal reagent takes fluoroborondipyrrole dye molecules and high molecular polymers as basic building units, and is co-assembled in an aqueous solution to obtain a J-aggregate nanosolution that can be stably dispersed in the aqueous system. The formation of J aggregates changes the photophysical / chemical properties of the dye molecules, the absorption spectrum is red-shifted by more than 100 nanometers, and the molar extinction coefficient increases significantly, showing a good photothermal conversion effect. Combined with further supramolecular structure remodeling, the morphology of the J-aggregate material is transformed into nanoparticles, the cellular uptake rate of the material is enhanced, and the biological application of the material is better realized. The J-aggregate nanophotothermal material proposed in the present invention has many advantages such as good biocompatibility, high photothermal conversion efficiency, and resistance to photobleaching, and has broad application prospects in the fields of photothermal therapy and photoacoustic imaging.

An inventive ink for ink jet printing which comprises water, preferably a pigment, as a solvent and at least one colorant, wherein the colorant absorbing visible light and thus stains the ink, is characterized in that the ink contains at least one further coloring agent, which in the water is dissolved in the solution and forming J-aggregates, wherein the J-aggregates absorb NIR radiation for radiation drying of the ink.

The invention provides an intelligent membrane comprising a supramolecular structure and polymer materials and a preparation method of the intelligent membrane. The intelligent membrane comprises a basilemma of which the surface has a polycation graft chain, and a supramolecular structure of porphyrin, wherein the basilemma is obtained by the membrane surface grafting modification, and can interact with the porphyrin to realize porphyrin load and the supramolecular structure. When the pH of material liquid is less than 1.2, the porphyrin forms a J-aggregated supramolecular structure, the water flux of the membrane is smaller, and reject rate is high; when the pH of the material liquid is greater than 4.0, the porphyrin forms an H-aggregated supramolecular structure, the water flux of the membrane is greater, and reject rate is low. When the pH of the material liquid gradually changes from the pH less than1.2 to the pH greater than 4.0, the J-aggregated supramolecular structure is gradually transformed into the H-aggregated supramolecular structure, the water flux of the membrane is increased, the reject rate is lowered, the process is reversible, and the intelligent membrane has pH-responsiveness. The intelligent membrane and the preparation method thereof can be applied to the relevant fields of separation and purification, water treatment, chemical sensors and the like.

The present invention is related to electroluminescent polymer materials for use in optoelectronic devices. The electroluminescent polymer materials of the invention may comprise a polymer and an electroluminescent organic component, where the water-soluble polyanilin having an electron-hole conductivity may be used as the polymer and one of a cyanine dye, a porphyrin, in the form of J-aggregates, may be used as the electroluminescent organic component.

The invention provides a flocculating agent with an excellent floc precipitate dehydrating property and a preparation method thereof which are applied to the sewage treatment industry, and belongs to the technical field of environment friendliness. According to the preparation method, a mixture which is in a network-shaped molecular structure is finally formed to serve as the flocculating agent by performing a substitution reaction and a polymerization reaction on chitosan, tetraethoxysilane, aluminium nitrate and iron oxide serving as raw materials; the preparation method has the characteristics that the floc formation speed is high, floc aggregates are large and cannot be re-dissolved, the formed sewage is easy to dehydrate and is easy to degrade; the removal rate of suspended solids reaches up to 97 percent; the capillary water suction time is below 24 seconds. The flocculating agent with the excellent floc precipitate dehydrating property and the preparation method thereof have the advantages that the flocculating agent and the formed flocs are of porous structures on a micro level; pores are mutually communicated with one another from interiors to body surfaces; water in sewage can naturally permeate from the pores, so that the sewage formed by the flocculating agent has the excellent dehydrating property.

A measuring method for a mixing proportion of coarse and fine aggregate relates to the field of building construction. A first contrast group is prepared, aggregate of the particle size of 0mm to 120mm is separated into eight piles of aggregate via screen meshes in the diameters of 80mm, 40mm, 20mm, 5mm, 1mm, 0.5mm and 0.25mm sequentially, and containers of the same model are used to take aggregate from the eight piles to form eight groups numbered from 1 to 8 respectively; and a second contrast group is prepared, containers of the above model are used, aggregate of any two of the eight piles is taken and mixed and stirred fully in one container, and twenty eight groups of mixed aggregate, numbered from 9 to 36, are obtained via all combination manners. The groups in the numbers from 1 to 36 are filled into glass grooves of the same depth, length and width, and smoothed out, a power switch of a ground geological radar 2 is switched on, a handheld rod 1 is held by two hands, and pushed to move in the same heights, over the numbers 1 to 36, along the glass grooves, and radar oscillograms of the first and second contrast groups are obtained. The method has the advantages that whether coarse and fine concrete aggregate is mixed uniformly can be detected at any time in the construction process.

A color correction filter that while inhibiting any drop of luminance of image display apparatus, removes intermediate color light to thereby attain an enhancement of color tone expression of the image display apparatus, and that excels in durability. The color correction filter is color correction filter (10) characterized in that it has color correction layer (11) and two protective layers (12), the color correction layer (11) containing a J-aggregate of dye, the dye being at least one dye selected from the group consisting of cyanine, merocyanine, squarylium and porphyrin, and that the color correction layer has a half-value width of maximum absorption peak ranging from 5 to 30 nm, and that the two protective layers (12) are provided on both major surfaces of the color correction layer (11), respectively.