70results about How to "Excellent charge transport" patented technology

The invention provides a display device and relates to the technical field of display. The display device is used to realize an anti-static protection function on the premise of being adapted to a display device with a narrow frame without reducing the light transmittance. The display device comprises: a display panel, a cover plate which is superimposed on the display panel, and an anti-static layer which is arranged on one side, facing to the display panel, of the cover plate. A display area of the display device is surrounded by the anti-static layer. The anti-static layer is grounded. The mentioned display device is used for image displaying.

The invention provides a naphthalene tetracarboxylic diimide copolymer containing thiadiazoloquinoxaline units, a preparation method and applications thereof. The naphthalene tetracarboxylic diimide copolymer containing thiadiazoloquinoxaline units has a structural formula represented in the description, wherein n is an integer in a range of 10 to 100, R1 represents a C1-C20 alkyl group or a structural unit represented in the description, R2, R3, and R4 represent H, a C1-C20 alkyl group, or a C1-C20 alkoxyl group, and R5, R6, and R7 represent H or a C1-C20 alkyl group; and is capable of improving the energy conversion efficiency of semiconductor devices.

The invention relates to a heating and evaporating method of a novel electron beam provided with powdered material with comparatively high melting point and a device thereof. The method combines an electron beam heating evaporating method and a resistance heating evaporating method to provide a filamentose cathode with a negative bias by a high voltage dc power, thus a highfield is formed between the negative bias and an earthing crucible; furthermore, a filamentose hot cathode is provided with an adjustable working current by a low voltage ac power to lead an electron beam current to be emitted by the filamentose hot cathode; the electron beam current bombards and heats the crucible at a high speed under the action of a strong electric field. An electrochromic layer tungsten trioxide WO3 film and an electrolyte layer lithium fluoride LiF film applied to electrochromic equipment can be prepared by using the electron beam heating and evaporating method of the invention; the film material prepared is dense and the charge transport performance is excellent; the film thickness can be precisely controlled when the method is applied to the evaporating preparation of polyimide substrate flexible film and solar cell nickel barrier film, and the device is characterized by simple operation.

The invention discloses naphthalene tetracarboxylic diimide-naphtho dithiophene-containing copolymer and a preparation method as well as application thereof. The polymer is a compound which has a general formula shown in the specification, wherein R1 and R2 are selected from H, C1-C20 alkyl groups, phenyl groups or substituted phenyl groups with C1-C20 alkoxyl groups; R3 and R4 are selected form C1-C20 alkyl groups or alkoxyl groups; and n is an integer of 1-100. The naphthalene tetracarboxylic diimide-naphtho dithiophene-containing copolymer is prepared through Stille reaction with a simple reaction synthesis route and low technological requirements, and has the characteristics of high dissolubility, strong absorbency, superior charge transfer performance, capability of extending an absorption range to a near infrared region, capability of increasing utilization rate of sunlight, wide application and the like.

The invention discloses a VOOH / VS4 micrometer composite powder as well as a preparation method and application of the VOOH / VS4 micrometer composite powder. The preparation method comprises the steps:simultaneously adding sodium metavanadate and thioacetamide into deionized water to obtain a solution A; then, dropwise adding an aqueous ammonia solution into the solution A to obtain a solution B; pouring the solution B into a reaction liner, and then, carrying out sealing for a hydrothermal reaction; next, taking out a product cooled after being reacted, alternately cleaning the product by using water and alcohol, and then, collecting the product; and freezing the cleaned product, and then, drying the product to obtain the VOOH / VS4 micrometer composite powder. The VOOH / VS4 micrometer composite powder prepared according to the preparation method is composed of uniform spheroidal structures of which the diameters are about 10mu m, parts of spheroidal structures are gathered, the insides of microspheres are formed by self-stacking micrometer VS4 short rods of which the diameters are 0.5-1.0mu m and the length is 1.0-2.0mu m, and the outsides of the microspheres are randomly formed fromVOOH long rods having the diameters of 50-200nm and single-crystal structures. The VOOH / VS4 micrometer composite powder is applied to the fields of lithium / sodium ion batteries and photo / electric catalysis. The VOOH / VS4 micrometer composite powder shows excellent electrochemical properties and catalytic property when being applied as an anode material of a sodium / lithium ion battery and a photo / electric catalyst.

The invention provides a large-particle perovskite single crystal / polymer composite thick film, a photoelectric detector and a preparation method. The preparation method comprises the following steps:step 1, fully dissolving perovskite to obtain a saturated solution, conducting filtering, and conducting continuous heating to obtain a perovskite single crystal; step 2, drying the perovskite singlecrystal, carrying out mechanical grinding and screening to obtain perovskite single crystal particles, and carrying out vacuum drying to obtain single crystal particles with the diameters of 500nm-10[mu]m; step 3, dispersing the single crystal particles in a polymer solution to prepare a dispersion liquid; and step 4, spin-coating the dispersion liquid on a transparent conductive substrate deposited with a hole transport layer to prepare the large-particle perovskite single crystal particle and polymer composite thick film, and annealing the composite thick film on a hot platform at a spin-coating rotating speed of 100-4000 rpm. The composite thick film provided by the invention has the advantages of excellent charge transmission performance, high response speed, high stability, low darkcurrent and noise, simplicity and convenience in preparation and the like.

The invention provides a naphthalene tetracarboxyldiimide copolymer containing a thienopyrroledione unit. The general molecular formula of the copolymer is as described in the specification. In the general molecular formula, n is an integer in a range of 5 to 100, R1 is a C1-20 alkyl group or a constitutional unit as described in the specification, R2, R3 and R4 are selected from the group consisting of alkyl groups for H and C1 to C20 and alkoxy groups for C1 to C20, and R5, R6 and R7 are selected from the group consisting of alkyl groups for H and C1 to C20. Thienopyrroledione is an excellent acceptor material. The structure of a naphthalene tetracarboxyldiimide compound includes centronucleus of polycyclic aromatic hydrocarbon and an imide group with an electron-withdrawing characteristic, and an imide unit with strong electron-withdrawing capability in the compound can reduce the energy levels of HOMO and LUMO in a material, which is beneficial for injection of electrons. The naphthalene tetracarboxyldiimide copolymer containing the thienopyrroledione unit integrates the advantages of thienopyrroledione and the naphthalene tetracarboxyldiimide compound, has excellent charge transfer performance and can improve energy conversion efficiency of semiconductor devices when applied in semiconductor devices like a solar cell.

The invention, belonging to the field of photoelectron material, discloses a naphthalene tetracarboxylic acid diimide-dithiophene quinoxaline copolymer of formula (I), wherein, n represents an integer between 1 and 100, R1 and R2 represent hydrogen, C1 to C20 alkyl, C1 to C20 alkyloxy benzene, and R3 and R4 represent C1 to C20 alkyl or alkyloxy. The invention also provides a preparation method and applications of the naphthalene tetracarboxylic acid diimide-dithiophene quinoxaline copolymer. According to the invention, by forming an electron donor-acceptor structure, the band gap of the polymer is adjusted, and the absorption band edge is pushed to the infrared and near infrared region; and the modified naphthalene tetracarboxylic acid diimide has good dissolvability, strong absorbance, and wide absorption region that extends to the near infrared region, improves the utilization rate of sunlight, and has excellent charge transport performance.

The invention provides compounds and application thereof, and an organic light-emitting device comprising the compounds. The compounds have a structure as shown in a formula (I). The compounds are used as light-emitting materials in the organic light-emitting device. The organic light-emitting device comprises a substrate, a first electrode, a second electrode and at least one organic layer interposed between the first electrode and the second electrode, wherein the organic layer contains any one or a combination of at least two of the compounds. The compounds have good electron transport capability, can realize carrier balance, are used for the organic light-emitting device, and can effectively reduce turn-on voltage and improve light-emitting efficiency.

The invention relates to a perylene tetracarboxylic dianiline conjugated polymer which has high solubility and high film forming processing performance and can effectively utilize sunlight and a preparation method and application thereof. The perylene tetracarboxylic dianiline conjugated polymer utilizes high carrier mobility of thiophene [3,2-b] bithiophene and has the advantage of solution processibility. The thiophene [3,2-b] bithiophene is copolymerized with a narrow-band system monomer diazosulfide unit and perylene tetracarboxylic dianiline so as to regulate a band gap of the polymer. An absorption edge of the perylene tetracarboxylic dianiline conjugated polymer is pushed to an infrared and near-infrared region. Decorated perylene tetracarboxylic dianiline have high solubility, strong absorbance and wide adsorption range and can be extended to the near-infrared region. The sunlight utilization rate of the perylene tetracarboxylic dianiline conjugated polymer is improved. The perylene tetracarboxylic dianiline conjugated polymer has excellent charge transfer performance and has wide application prospect in the fields of an organic solar cell and the like.

The invention discloses a starburst non-fullerene organic small molecule receptor material containing pyrene and perylene diimide and a preparation method of the starburst non-fullerene organic smallmolecule receptor material. The non-fullerene organic small molecule receptor material is bridged with condensed nucleus pyrene and perylene bisimide units through triple bonds, the obtained materialhas good thermal stability, raw materials are common and easy to obtain and can be purified through recrystallization, and the production cost is low; and the starburst non-fullerene organic small molecule receptor material is applied to a polymer solar cell, the effect with the energy conversion efficiency being 6-8% can be achieved under the condition of an optimizing device, the starburst non-fullerene organic small molecule receptor material serves as a third component to be added into a ternary solar cell active layer, the density of a short-circuit current of the ternary solar cell active layer can be remarkably increased, the effect with the energy conversion efficiency being 8-11% can be achieved, and certain practical application value is achieved.

The present invention is one kind of conjugate light-emitting polymer with antioxidant group in the side chain and its application in organic electroluminescence, and belongs to the field of organic polymer semiconductor light-emitting material technology. Thiophene, fluorene, carbazole or other aromatic ring side radical is used to connect phenol antioxidant to form monomer with antioxidant side radical, and the monomer is finally polymerized to produce organic light-emitting display material with antioxidant side radical. The product of the present invention has excellent light emitting performance and antioxidant ageing performance, and its antioxidant side radical has few influence on the light emitting performance of the main chain. The product has high heat stability and excellent charge transmission performance and may be used as organic electroluminescent display material.

The invention provides a triarylated amine compound and a preparation method thereof, and application to preparation of a solar cell, which are used to solve the problem in the prior art of low photoelectric conversion efficiency of a dye-sensitized solar cell. According to the invention, six triarylated amine dye sensitizers are obtained by synthesizing triarylated amine which serves as a donor, a thiazole-containing conjugate aromatic ring which serves as a bridged bond, and cyanoacetic acid which serves as a receptor. The dye-sensitized solar cell obtained by assembling the compounds which serve as the dye sensitizers has higher photoelectric conversion efficiency, and a new applicable substance is added to screening of the dye sensitizers.

The invention relates to an organic semiconductor material containing naphtho-dithiadiazole and naphthalene tetracarboxylic diimide, and a preparation method and application of the organic semiconductor material. The organic semiconductor material containing naphtho-dithiadiazole and naphthalene tetracarboxylic diimide has the following structural formula as shown in the specification, wherein n is an integer in a range from 10 to 100; R1 is C1-C20 alkyl; R2, R3 and R4 are H, C1-C2 alkyls or C1-C20 alkoxy groups; R5 and R6 are H or C1-C20 alkyls. The organic semiconductor material containing naphtho-dithiadiazole and naphthalene tetracarboxylic diimide integrates advantages of naphtho-dithiadiazole and naphthalene tetracarboxylic diimide, has good charge transport performance, and can improve energy conversion efficiency of semiconductor devices when being used for the semiconductor devices, such as a solar battery.

The invention discloses a high efficiency organic small molecule receptor material, a preparation method and application thereof. The method includes: taking 2, 7-dibromobenzo[b]benzo[4, 5]thieno[2, 3-d]thiophene (BTBT) and difluoro-indandione as the raw materials, carrying out Suzuki-Miyaura coupling reaction, Friedel-Crafts reaction, Vilsmeier-Haack reaction and Knoevenagel condensation reaction to synthesize A-D-A type organic small molecule receptor material shown as formula (I). The obtained material can be purified by recrystallization and has good thermal stability. By applying the material to polymer solar cells, under the condition of optimizing devices, 12.66% energy conversion efficiency can be acquired, and the material has certain practical application value.

Disclosed are a tetra-beta-carboxyl phenoxy metal phthalocyanine / graphene composite material and a method. Graphene is easy to agglomerate and has relative inert surface and poor dispersity, so that defects of poor selectivity and recovery capability, low sensitivity and the like occur when graphene is used as a gas-sensitive material. Further application of a phthalocyanine complex is hindered due to an overhigh resistance value in practical application. The effect between the phthalocyanine complex and graphene is still unclear, and the distribution of the phthalocyanine complex on the surface of graphene is still not uniform. The compositions of the composite material comprise the following components: 0.85%-1.69% of tetra-beta-carboxyl phenoxy metal phthalocyanine, 0.40%-0.56% of graphene, 80.1%-83.1% of N, N-dimethylformamide, 2.61%-3.05% of hydrazine aqueous solution, and 15.2%-17.1% of ammonia water, wherein the percentage is weight percentage. The composite material is appliedto gas sensitive materials.

The invention relates to a thermal activation delay fluorescent material and an organic light-emitting display device comprising the same. The thermal activation delay fluorescent material is any oneor a combination of at least two of compounds with the structure in a formula (I). The organic light-emitting display device comprises an anode, a cathode and at least one organic film layer positioned between the anode and the cathode; and the organic film layer comprises a light-emitting layer as well as at least one or a combination of at least two of a cavity transportation layer, a cavity injection layer, an electron blocking layer, a cavity blocking layer, an electron transmission layer and an electron injection layer. In the thermal activation delay fluorescent material provided by theinvention, delta Est is less than or equal to 0.30 eV, and even the delta Est is less than or equal to 0.15 eV, so that the organic light-emitting display device comprising the thermal activation delay fluorescent material has high light-emitting efficiency.

The invention provides a Cu2S-SiW12 / MoS2 composite counter electrode and a preparation method thereof and a quantum dot solar sensitized cell, which belong to the technical field of solar cells. The Cu2S-SiW12 / MoS2 composite counter electrode comprises a conductive substrate and a Cu2S layer and a SiW12 / MoS2 composite layer attached successively to the conductive substrate. The Cu2S-SiW12 / MoS2 composite counter electrode provided in the invention has excellent catalytic performance in a polysulfide electrolyte, and can effectively reduce the interface charge transfer impedance of the quantum dot sensitized solar cell.

The invention discloses benzothiophene unit-containing perylene diimide copolymer with the molecular structural general formula (I), and a preparation method and application thereof. In the formula, n is an integer ranging from 1 to 100; R1, R2 and R3 are selected from -H, alkyl with 1 to 20 carbon atoms, alkoxy with 1 to 20 carbon atoms and phenyl; and R4 and R5 are selected from alkyl with 1 to12 carbon atoms and alkoxy with 1 to 20 carbon atoms. The copolymer has good solubility, high absorbance, wide absorption range capable of extending to a near infrared region, and good charge transfer property, and improves the utilization rate of sunlight; and the preparation method is simple, easy to control and implement, and suitable for industrial production.

The invention relates to a composite membrane counter electrode used for dye-sensitized solar cells (DSSC) and a preparation method thereof, solving the problem that platinum counter electrodes of the existing DSSC have high preparation cost. The composite membrane counter electrode of the invention comprises a conductive substrate, a manganese dioxide membrane and a conductive polymer membrane. The preparation method of the invention comprises the following steps: first preparing electrophoretic liquid of the manganese dioxide and then electrophoretically depositing the manganese dioxide membrane on the conductive substrate; preparing electrodeposition liquid of a conductive polymer and depositing the conductive polymer membrane on the manganese dioxide membrane by cyclic voltammetry to obtain the composite membrane counter electrode used for DSSC. The composite membrane counter electrode of the invention has good catalytic performance and low preparation cost. The photoelectric conversion efficiency of the DSSC based on the composite membrane counter electrode of the invention reaches 3.85%, which is equivalent to that of the existing DSSC based on the Pt counter electrodes.

This charge-transporting varnish includes: a fluorine-containing charge-transporting substance; a non-fluorine-containing charge-transporting substance; a dopant substance comprising a heteropoly acid; and an organic solvent. The fluorine-containing charge-transporting substance is a polymer which has a weight average molecular weight of 500-200,000, and which is obtained by condensing: at least one compound selected from triarylamine compounds and tetraarylbenzidine compounds; a tetraarylbenzidine compound having at least one aryl group substituted with an alkoxy group which may include ether bonds; a fluorine-containing aryl aldehyde compound; and a fluorene derivative having a carbonyl group. The non-fluorine-containing charge-transporting substance is an oligoaniline compound. The charge-transporting varnish provides a thin film with which an organic electroluminescent element exhibiting excellent luminance characteristics can be achieved, even in cases when employed as a single layer in a state of being provided between and in contact with a positive electrode and a light-emission layer.

This arylamine derivative represented by formula (1) exhibits good solubility to an organic solvent, and can be used to provide a thin film having solvent resistance, and also provides an organic EL element which exhibits good characteristics when the arylamine derivative is applied to a positive hole transport layer. (In the formula, each R independently represents a fluorine atom-containing alkyl group having 1-5 carbon atoms, each Ar1 independently represents an aryl group that has 6-20 carbon atoms, that is optionally substituted with Z1, and that has a crosslinking group, each Ar2 independently represents at least one aryl group selected from those represented by formulae (2)-(4), and Z1 represents a halogen atom, a nitro group, a cyano group, an amino group, or an alkyl group having1-20 carbon atoms optionally substituted with Z4.) (In the formula, Ar3 represents a hydrogen atom, or an alkyl group having 6-20 carbon atoms optionally substituted with Z2, and R1-R39 each independently represent a hydrogen atom, a halogen atom, etc.)

This hole transporting varnish for metal positive electrodes, which contains, for example, a charge transporting material that is composed of an aniline derivative represented by formula (1), a dopant material that is composed of a heteropolyacid, and an organic solvent, provides a thin film that has excellent ability of accepting holes from a metal positive electrode and is suitable for use as a hole injection layer which is formed on the metal positive electrode. (In the formula, X1 represents -NY1-, -O-, -S-, -(CR7R8)l- or a single bond; each Y1 independently represents a hydrogen atom or the like; each of R1-R8 independently represents a hydrogen atom, a halogen atom or the like; and each of m and n independently represents an integer of 0 or more, while satisfying 1 ≤ m + n ≤ 20, provided that in cases where m or n is 0, X1 represents -NY1-.)

The present invention provides water soluble conjugate fluorene polymer containing polyethylene diamine side chain as blue light material and its application in ink jet printer and organic light emitting biosensor, and belongs to the field of organic polymer semiconductor light emitting material. Fluorene has its site-9 and oxazolinyl are ring-opening polymerized in carbon cation path, hydrolyzed to form water soluble substitution side chain, and finally polymerized to form substituted fluorene and obtain water soluble blue light emitting display material. The product of the present invention has excellent light emitting performance, high water solubility, few influence of the side radical on the light emitting performance of the main chain, good heat stability and excellent charge transferring performance, and may be used as blue light emitting ink for jet printing and organic light emitting biosensor.

The invention provides a benzodisulfone thienyl polymer which is provided with a sulfone group with a strong electron-withdrawing ability, and the sulfone group can be connected with other groups with an electron-withdrawing property to form a receptor material which has excellent charge transportation performance and can broaden absorption of materials in a visible region. A preparation method of the material provided by the invention is simple and feasible, and can be used for a receptor material of an organic solar cell to improve the efficiency of a cell device.

The invention relates to a ferroelectric circularly polarized photovoltaic effect driven circularly polarized light detector and a preparation method thereof. The detector comprises an insulating substrate layer, a halide perovskite ferroelectric single crystal wafer layer which is arranged on one side surface of the insulating substrate layer and has optical activity, and a metal electrode group which is plated on the free surface of the single crystal wafer. According to the ferroelectric circularly polarized photovoltaic effect driven circularly polarized light detector, bias voltage does not need to be added, light current changing along with the polarization angle can be generated under excitation of circularly polarized light, self-driven circularly polarized photoelectric detection can be achieved, the structure is simple, and the cost is low.

The invention discloses a preparation method of an n-type triazine naphthalene diimide type COF conjugated polymer cathode interface layer. Synthesized by coupling reaction with 2,4,6-tris(4,4,5,5-tetramethyl-1,3,2-dioxaborane-2-yl)-1,3,5-triazine target product. First, the COF-like two-dimensional dendritic conjugated polymer with siloxane introduced into the side chain enables the material to possess the unique charge transport properties of COF materials; secondly, the lone pair of electrons on the nitrogen atom in the triazine is transferred to the naphthalenediimide It can form a favorable n-type self-doping effect and improve the electrical conductivity of the material; finally, the side chain siloxane-induced assembly and the strong interfacial interaction between the dendrimer and the underlying substrate are used to self-assemble into an ordered arrangement , optimize the morphology of the active layer and improve the carrier mobility, thereby improving the short-circuit current and device efficiency of the device.