47results about How to "Good photoelectric activity" patented technology

The invention relates to a fluorenyl organic framework material, a preparation and application method thereof. A material which is provided with a framework structure shaped as a Chinese character ri and constructed by the method disclosed by the invention is taken as a new generation organic semiconductor to be applied to an organic electronic device. The structure of the material is shown in the specification. The material has the characteristics that (1) monomers are synthesized via a Grignard reaction and a Friedel-Crafts reaction, the raw material is inexpensive and the synthesis method is simple; (2) the material has high heat stability and glass transition temperature; (3) the material is good in flexibility and high in solubility; and (4) due to the accumulation effect of diaryl fluorine, the material is good in electrooptic activity. The fluorenyl organic framework material can be applied to the organic electronic field of film devices such as organic light emitting display, organic light storage, organic photovoltaic cells, organic field effect transistors and organic laser, and the like. Electroluminescent devices prepared by using the material disclosed by the invention show satisfactory results in luminance, luminous efficiency and voltage resistance stability.

The invention discloses a near blue fluorescent material and a preparation method thereof. The material is prepared through chemical reactions of quinoline carboxylic acid and 4,4'-bipyridine with conjugated extended pi bonds, and zinc ions with optical activity. The fluorescent material is a zinc quinoline carboxylic crystal with a molecular formula of C84H56N8O8Zn2. The crystal belongs to a crystal system of triclinic system, and a space group of P-1. Cell parameters of the crystal are that: alpha= 91.357 DEG, gamma=106.573 DEG, and beta=101.953DEG. The zinc ions have two coordination modes, one is a square pyramid coordination mode, wherein two nitrogen coordinating atoms come from two different 4,4'-bipyridines, and three oxygen coordinating atoms come from two different quinoline carboxylic acid ligands; the other is a octahedral coordination mode, wherein two nitrogen coordinating atoms come from two different 4,4'-bipyridines, and four oxygen coordinating atoms come from two different quinoline carboxylic acid ligands. The material is advantaged in that: the fluorescent material contains abundant optically active Zn (II) ions and conjugated extended bonds, and has good near blue light emission performance.

The invention relates to a method for preparing a composite heterostructure of zinc oxide nano rods and a silver micron plate. The method includes: utilizing dextran sulphate sodium as regulating agent to prepare a perforated silver micron plate in a reaction system of silver nitrate and an ascorbic acid solution of water and methanamide; depositing zinc oxide seed crystals on the silver micron plate, coating the silver micron plate with the deposition of the zinc oxide seed crystals on an electric-conducting glass sheet in a rotating manner, cleaning, drying, placing the electric-conducting glass sheet in an ethanol solution of hexamethylene tetramine and zinc nitrate to grow a zinc oxide nano rod array on the silver micron plate, fully cleaning with water, and naturally drying to obtain the finished product. The product prepared by the method is a high-level composite heterostructure with the zinc oxide nano rod array growing on the perforated silver micron plate, wherein the diameter of the silver micron plate is about 4 microns, and the size and the structure of the zinc oxide nano rod array are adjustable and controller. The method for preparing the composite heterostructure of the zinc oxide nano rods and the silver micron plate is structurally controllable, good in repeatability and stable in product property, and has excellent photocatalytic performance.

The invention relates to a rhombic cell containing spiral rings and a synthesis method thereof and belongs to the fields of nanotechnologies and organic electrons. The rhombic cell containing the spiral rings is hereinafter to be referred as the rhombic cell, is a closed-loop structure formed by connection of two types of fluorenyl groups and derivatives thereof by a manner of central symmetry, and has the distinctive characteristic of edges and corners. The structural formula of the rhombic cell is described in the specification, wherein R is a common alkyl chain. The synthesis method relatesto synthons containing the spiral rings, and forms the rhombic cell by Friedel-Crafts reaction. The rhombic cell and the synthesis method have the beneficial effects that by reasonable molecular design and utilization of the Friedel-Crafts reaction with the advantages of mild reaction condition, high yield and selectivity, simple aftertreatment and green and nontoxic effect and the like, the problems of complex steps, toxic aftertreatment and larger pollution and the like in the traditional synthesis of closed-looped molecules are overcome.

The invention relates to a method for preparing a sandwich type photoelectric chemical sensor for cardiac troponin I and belongs to the technical field of nano functional materials, immunoassay and photoelectrochemistry sensation. According to the method, a carboxylation CdS quantum dot is adopted to sensitize a 001 crystal surface of a nano square piece TiO2, then visible light absorption can beimproved, a composite material TiO2/CdS of which the photoelectric activity is remarkably improved is prepared, by using a layer-by-layer self-assembling method, a cardiac troponin I antibody, bovineserum albumin and cardiac troponin I antigen are assembled on the composite material TiO2/CdS, Ag@Cu2O shell-core nanoparticles are adopted as a second antibody marker, and by virtue of the excellentphotoelectric activity of the TiO2/CdS and specific combination of antigen and antibodies of the cardiac troponin I, super-sensitive detection on the cardiac troponin I can be achieved, and the methodhas great significances for analysis and detection on the cardiac troponin I.

The invention discloses a blue-light-emitting fluorescent material and a preparation method thereof. The invention is characterized in that the fluorescent material is a cadmium compound of orotic acid, which is prepared by carrying out chemical reaction on orotic acid with carboxylic acid, phenanthroline and cadmium ions with optical activity; the molecular formula of the fluorescent material is C44H52N12O28Cd2, the crystal system is triclinic, and the space group is P-1; and the cell parameters are as follows: a=9.5220 Angstroms, b=11.8790 Angstroms, c=12.6141 Angstroms, alpha=73.082 degrees, gamma=78.073 degrees, and beta=81.100 degrees. The cadmium ions are in a pentagonal bipyramidal coordination mode, two nitrogen coordinating atoms are from the phenanthroline, three oxygen coordinating atoms are from orotic acid, and two oxygen coordinating atoms are from water. The fluorescent material has the advantages of accurate space structure and accurate molecular formula, and contains abundant Cd(II) ions with optical activity and carboxylic acid with strong coordinating capacity, thereby being beneficial to electron transition and energy transmission. The fluorescent material has favorable photoelectric activity and favorable blue light emission performance.

The invention relates to a pyrene organic material, a preparing method and an application of the pyrene organic material. The material which is built with the preparing method and is of a dumbbell-similar structure serves as an organic semiconductor to be applied to an organic electronic device. The general molecular formula of the material is shown in the specification. The material has the advantages that raw materials are low in price, and the synthesis method is simple and convenient; the dumbbell-shaped structure is adopted; high thermal stability and glass transition temperature are achieved; the material has good flexibility and high solubility; good photoelectric activity is achieved. The pyrene-based organic dumbbell-shaped material can be applied to the organic electronic fields such as organic luminescence display, organic optical storing, organic field effect transistors and organic lasers of thin-film devices. An electroluminescence device prepared from the material obtains the satisfactory results in the luminance aspect, the luminous efficiency aspect, the voltage-proof stability aspect and the like.

The invention discloses a polyarylester liquid crystal material with photoelectricity activity and containing azo and aniline segments and a preparing method of the polyarylester liquid crystal material, belonging to the filed of functional polymer materials. The method comprises: reacting azobenzene diacyl chloride with different substituent groups with parahydroxydiphenylamine to prepare an azo ester monomer, then performing oxidative coupling polymerization on the azo ester monomer and p-phenylenediamine to prepare oxidation azo polyarylester liquid crystal material, and through reducing of hydrazine hydrate and ammonium hydroxide, obtaining the polyarylester liquid crystal material with photoelectricity activity and containing azo and aniline segments. The polyarylester liquid crystal material with photoelectricity activity and containing azo and aniline segments has good solubleness and thermal stability, has electrochemical activity similar to an aniline oligomer and photoinduced isomerism of an azo polymer, and can produce lyotropic liquid crystal in organic solvents such as N,N-dimethylacetamide and dimethylsulfoxide. The material has good application potential in aspects of biosensors, optical elements and electromagnetic materials, and the like.

The invention belongs to the field of electrochemical detection, and particularly provides a construction method of a photoelectrochemical sensor for non-labeling detection of 4-chlorophenol. The construction method comprises the following steps that step 1, graphite-phase carbon nitride (GCN) is prepared; step 2, an Ag/GCN/carbon sphere (Ag/GCN/C) ternary photoelectric active material is prepared; step 3, the photoelectrochemical sensor for the non-labeling detection of 4-chlorophenol is constructed. Compared with a traditional detection method, a photoelectrochemical detection method of 4-chlorophenol has the advantages that the operation is simpler, more convenient and more flexible, instrument and equipment are simpler, the reagent dose is less, and the detection cost is low.

The invention discloses a fluorobenzofiurene organic fluorescent material. The organic fluorescent material is a fluorobenzofiurene organic compound, wherein the compound is named 2,7-bi(4-fluorophenyl)fluorene, has a molecular formula of C25H16F2 and the molecular weight being 354.38, is of a monoclinic crystal system and has the space group being P21/c, and the cell parameters are as follows: a=8.0031, b=5.8478, c=37.930, alpha=90 degrees, gamma=90 degrees, beta=95.442 degrees; the fluorescent material is formed by mixing and reacting 2,7-dibromofluorene, 4-fluorophenylboronic acid, palladium acetate and potassium carbonate under certain conditions; the preparation method is simple; the reaction conditions are mild; the yield reaches 70-80%; the obtained fluorobenzofiurene organic fluorescent material 2,7-bi(4-fluorophenyl)fluorene has a clear space structure and an accurate molecular formula, and contains rich electronic conjugate large pi keys, which are advantageous for electron transition and energy transfer; besides, the obtained fluorobenzofiurene organic fluorescent material is good in luminescence stability, fluorescence quantum efficiency and dissolving property, high in luminous efficiency and long in service life, and thereby has potential application prospect.

The invention discloses a bipyridine bisthiophene blue fluorescent material. The fluorescent material is a bisthiophene organic compound bilaterally coupled with pyridine, and is named as 5,5'-bis(pyridine-3-yl)-2,2'-bisthiophene, the molecular formula is C18H12N2S2, the crystal system is monoclinic, the space group is P2(1)/n, and the unit cell parameters of the compound are as follows: a = 1.09994 nm, b = 0.57419 nm, c = 1.17721, alpha = gamma = 90 DEG, and beta = 103.20 DEG. The blue fluorescent material has the advantages of clear spatial structure, accurate molecular formula, simple synthesis steps, mild reaction conditions, realization of increase of the electron delocalization degree, enhancement of the luminescence performance and improvement of the stability and the solubility byintroducing pyridyl groups to the 5-positions of two sides of the bithiophene, and potential application prospect as a fluorescent material.

Belonging to the technical field of polymer materials, the invention relates to a polyarylether polymer containing photoelectric functional groups, a preparation method and application thereof. From the perspective of molecular design, carbazole, triphenylamine and the like containing conjugate photoelectric active groups are introduced into a polymer side chain, and the sites of corresponding groups are modified to continuously improve the performance of the material. The polyarylether polymer containing photoelectric functional groups are prepared by homopolymerisation. At the same time, because of the use of a nucleophilic substitution polycondensation method, a high molecular weight polymer can be obtained, and also the degree of polymerization can be controllable. The polyarylether polymer containing photoelectric functional groups provided by the invention has 5% of thermal weight loss at or above 300DEG C, can dissolve in tetrahydrofuran, dichloromethane, trichloromethane, N, N'-dimethylformamide, N, N'-dimethylformamide, N-methyl pyrrolidone and other organic solvents, and can show the photoelectric characteristics of corresponding photoelectric active groups.

The invention discloses a cobalt complex with electrocatalytic activity on formaldehyde and a preparation method thereof. The cobalt complex is an electrocatalytic material of an accurate spatial structure, a chemical formula of the cobalt complex is CoC8H12N6O12, a structural unit is [Co(C4H2N3O4)2(H2O)4], a crystal system is a triclinic crystal system, a space group is P-1, and crystal cell parameters are described in the specification, wherein alpha is 97.141 degrees, beta is 108.592 degrees, gamma is 115.555 degrees, and a cobalt ion is a hexa-coordinate octahedron geometrical configuration. The preparation method of the cobalt complex with the electrocatalytic activity on the formaldehyde comprises the step that chemical reaction is carried out on a 5-nitro potassium orotate monohydrate and the cobalt ion with electrocatalytic activity, so that the cobalt complex is obtained. The preparation method is simple in operation, low in cost and applicable to large-scale production. The obtained cobalt complex has good electrocatalytic activity and has potential application prospects as an electrocatalytic material.

The invention discloses a bromopyridine dithiophene purple-blue fluorescent material. The fluorescent material is a unilaterally coupled pyridine dithiophene organic compound named as 3-(5'-bromo-[2,2'-bisthiophene]-5-yl)pyridine, the molecular formula of the fluorescent material is C13H8NS2Br, the crystal system is orthogonal, and the space group is Pbca, a is equal to 14.6864 angstroms, b is equal to 6.0096 angstroms, and c is equal to 27.7452 angstroms. The fluorescent material has a definite space structure and an accurate molecular formula, synthesis steps are simple, and reaction conditions are mild. By unilaterally introducing a pyridine group to a site 5 of dithiophene, the electronic conjugated delocalization range of the material is increased, the luminescence property of the material is improved, and the stability and dissolubility of the material are improved; and the material has potential application prospects as the fluorescent material.

The invention discloses a light emitting material which is a platinum alkynyl containing compound, wherein the molecular formula is C33H24N6Pt, and the molecular weight is 699. The compound is a greenlight or green-yellow light emitting material which has an exact spatial structure and an accurate molecular formula; the molecule, containing alkynyl, conjugate large pi bond, Pt(II) ions with highoptical activity, etc., promotes electron transition and energy transfer, and thus, the compound disclosed by the invention has high photoelectric activity. The invention also discloses a preparationmethod of the light emitting material. The preparation method comprises the following steps: synthesizing an intermediate 1g from 2-(2-pyridine)imidazole and dichloromethane; synthesizing an intermediate 2g from the 1g and dimethylsulfoxide platinum chloride; finally, synthesizing the material from the 2g and phenylacetylene. The preparation method disclosed by the invention is easy to operate andhas high reaction selectivity. The invention also provides a method of emitting green light or green-yellow light of the light emitting material.