40results about How to "Good solution processability" patented technology

Conjugated mono-, oligo- and polyalkylidenefluorenes are suitable for use as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors, electroluminescent, photovoltaic and sensor devices.

Conjugated mono-, oligo- and polyalkylidenefluorenes are suitable for use as semiconductors or charge transport materials in optical, electrooptical or electronic devices including field effect transistors, electroluminescent, photovoltaic and sensor devices.

The invention belongs to the technical field of materials, and specifically relates to an electron transport material, a preparation method thereof and a light emitting diode. The electron transport material comprises metal oxide nanoparticles and PMMA, wherein the metal oxide nanoparticles and the PMMA are connected through an alkoxy silane coupling agent containing an amino at the tail end of anon-alkoxy carbon chain; one end of the silane coupling agent is connected with the metal oxide nanoparticles through -Si(O-)3, and the other end of the silane coupling agent is connected with PMMA through -NH-CO-. The electron transport material is used for preparing an electron transport layer, can improve a phenomenon of uneven electron-hole injection of a light emitting diode device, and thuscan achieve an effect of balanced charge injection through adjusting the injection ratio of electrons and holes in a light emitting layer, so that an electron transport layer with the electron injection capacity being adjustable, thus the recombination rate of the holes and electrons in the light emitting layer can be increased, and the light emitting efficiency is improved.

The invention relates to organic electroluminescence or charge transport material with side group of unsaturated ester. The general formula is (I), A is electroluminescence or charge transport material, organic semi- conductor main structure, such as piper, or m- TDATA, or poly fluorene benzene; R is alkyl. The synthesis method comprises following steps: introducing hydroxyl group for main structure A of organic semi- conductor, the ester reacting with hydroxyl to produce side group unsaturated ester, rotary coating and filming, crosslinking and curing with ultra- violet. The invention is characterized by low raw material cost, simple reaction, suitability for large- scale production, more stable chemical property and better solubility of product, good liquid processing property, insoluble of crosslinked molecule in organic solution and free from influence from rotary coating of solution on upper layer.

Provided are (i) a polyimide which is transparent and has an excellent solution processability, a high heat resistance, and a low linear thermal expansion coefficient, and (ii) a polyimide film of the polyimide. According to the present invention, it is possible to produce, by use of a novel diamine characterized in having an amide group and a trifluoromethyl group, the polyimide which is transparent and has the excellent solution processability, the high heat resistance, and the low linear thermal expansion coefficient. The polyimide can be applied to various electronic devices such as an electronic display device.

The invention relates to novel polyaromatic and polyheteroaromatic compounds and derivatives thereof. The compounds display high solubility in organic solvents. A further aspect of the invention relates to the use of the novel compounds in the fabrication of organic film based heterojunction devices. In one form the devices display high conversion efficiencies in solar cell applications.

The invention relates to a diphenylamine-styrene biphenyl compound containing a photocrosslinking group, and the application in preparing a blue-light organic electroluminescent material and in organic electroluminescence, and belongs to the technical field of organic semiconductor light-emitting material. A substance with UV curing activity is formed by connecting olefinic acid ester with benzene ring of diphenylamine-styrene biphenyl, which is the blue-light organic electroluminescent material, and the substance is mixed with a small amount of UV-curable initiator to form a film by spin coating and is crosslinked under the action of UV rays to form an organic electroluminescent layer insoluble in a solvent. The product can prevent interlayer mixing while multilayer spin coating, and the side group has less influence on the light emission performance. The method is a better method for preparing the organic electroluminescent layer.

The invention discloses a preparation method of polyphenyl ether thioether sulfoxide. The polyphenyl ether thioether sulfoxide comprises the following ingredients: 4,4'-dyhydroxy diphenyl sulfide and 4,4'-dihalogen diphenylsulfoxide as the reaction monomer of which the mole ratio is 1: 1.02, 1.1-2.5mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the assistant, 0.1-0.5 mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the catalyst, 1000-2000ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the solvent, and 300-500ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the azeotropy dehydrating agent. The process comprises the following steps of: (1) adding the ingredients into a reaction contain and stirring under the protection of nitrogen at the room temperature, rising the temperature, heating, and dehydrating, ending the dehydration when the temperature reaches 130-150 DEG C, subsequently rising the temperature to 170-220 DEG C and carrying out the polymerization reaction, when the reaction is ended, cooling naturally to the room temperature and stopping stirring; and (2) pouring the mixture liquid formed by the polymerization reaction into precipitating agent, precipitating and filtering so as to obtain a filter cake, washing the filter cake and drying in vacuum so as to obtain the polyphenyl ether thioether sulfoxide; and the structural formula is: (FORMULA).

The invention discloses a terpolymer containing a triazol isoindol-5,7(2H,6H)-dione unit and a preparation method and application thereof. The preparation method comprises the following step of enabling a monomer of an electron donor unit and a monomer containing the triazol isoindol-5,7(2H,6H)- dione unit to generate still coupling copolymerizing reaction, so as to obtain the ternary copolymer containing the triazol isoindoline-5,7(2H,6H)-diketone unit. The ternary copolymer containing the triazol isoindol-5,7(2H,6H)-dione unit has the advantages that the fluorescence property is realized; the absorbing range of sunlight is wider; the terpolymer can be well applied to the fields of preparation of light emitting layers of polymer light emitting diodes, polymer field effect transistors and activating layers of polymer solar batteries.

The invention discloses a D-A type conjugated polymer organic thermoelectric thin film material and a preparation method thereof. The chemical structural formula of the organic thermoelectric thin film material is as shown in specification, wherein X is one of oxygen atoms, thiophene and thienothiophene, and n is an integer from 40 to 70. The provided organic thermoelectric thin film material is easily dissolved in common organic solvents such as tetrahydrofuran, dichloromethane, trichloromethane and chlorobenzene, and therefore, the organic thermoelectric thin film material has good solutionmachinability. In addition, the D-A type conjugated polymer organic thermoelectric thin film material further has high Seebeck coefficients and thermoelectric property, and meanwhile also has good flexibility, and thus, the organic thermoelectric thin film material is expected to be used in flexible wearable thermoelectric equipment; and moreover, the preparation method of the D-A type conjugatedpolymer organic thermoelectric thin film material is simple and easy to implement, and the cost is low.

The invention relates to preparation of a 4,9-bis(alkylene) indene thieno[3,2-b]thiophene derivative which is applicable to organic optoelectronic materials. A 4,9-bis(alkylene) indene thieno[3,2-b]thiophene derivative has a chemical structure as shown in general formula (I). A preparation method of the 4,9-bis(alkylene) indene thieno[3,2-b]thiophene derivative comprises the following steps: reacting indene thieno[3,2-b]thiophene-4,9-diketone with a Grignard reagent prepared by brominated alkanes with a chain length of C1-C20 and magnesium, performing heating reflux for dehydroxylation of the obtained tertiary alcohol in the presence of hydrochloric acid or other mixed acids so as to obtain 4,9-bis(alkylene) indene thieno[3,2-b]thiophene. The preparation method of the invention can obtain the 4,9-bis(alkylene) indene thieno[3,2-b]thiophene derivative with good solution processability and a long carbon chain; the mother ring of indene thieno[3,2-b]thiophene and the alkylene have good coplanarity, and the alkylene has good flexibility.

The invention discloses a random copolymer with difluorobenzothiadiazole and quaterthiophene as a main chain as well as a preparation method and application of the copolymer. According to the invention, random copolymerization is carried out by changing a way that two adjacent thiophene substituent groups of difluorobenzothiadiazole are combined according to length, so that a corresponding randomcopolymer is obtained. The prepared random copolymer with the difluorobenzothiadiazole and quaterthiophene as the main chain has good light absorbing property and solution processability, a light absorbing active layer oriented to a polymer solar cell can be produced, and the polymer solar cell can have high energy conversion efficiency. The prepared random copolymer with the difluorobenzothiadiazole and quaterthiophene as the main chain can enable the polymer solar cell to have good thermal stability, and an alternate copolymer adopting a long side chain cannot enable the polymer solar cell to obtain the same thermal stability.

The invention discloses a PbS colloidal quantum dot film surface acoustic wave gas sensor and a manufacturing method thereof, and belongs to the field of novel electronic materials and intelligent sensors. PbS CQDs are synthesized through a cation exchange method; an ST cut quartz crystal SAW delay line is manufactured by adopting a traditional photoetching process; the PbS CQDs are coated on thedelay region of the SAW delay line by using a spin-coating process; the surface acoustic wave gas sensor based on the PbS colloid quantum dot film is manufactured by combining the characteristics of higher specific surface area, easiness in gas adsorption and gas sensitivity of the PbS colloid quantum dot film with the advantages of small size, high sensitivity and the like of the surface acousticwave sensor. The dynamic sensing response of the sensor to gas with the NO2 concentration ranging from 0.5 ppm to 30 ppm at the room temperature is increased from 1 kHz to 12 kHz, the theoretical detection base limit of the sensor is about 32 ppb, good repeatability is achieved, and the sensor has wide application prospects and research values in the aspect of intelligent sensor bionic olfaction.

In OLEDs, improved efficiency is obtained by compounds which can form inter alia electron injection layers of the formula (I)whereinR1 is a 1-5 ring aryl (including polycyclic), aralkyl or heteroaryl group which is optionally substituted with one or more C1-C4 alkyl, alkoxy or cyano;R2 and R3 together form a 1-5 ring aryl (including polycyclic), aralkyl or heteroaryl group which is optionally substituted with C1-C4 alkyl, alkoxy or cyano;R4 is hydrogen, C1-C4 alkyl or aryl; andAr is monocyclic, bicyclic or tricyclic aryl or heteroaryl which is optionally substituted with one or more C1-C4-alkyl or alkoxy groups, or an oligomer thereof.

In OLEDs, improved efficiency is obtained by compounds which can form inter alia electron injection layers of the formula (I)whereinR1 is a 1-5 ring aryl (including polycyclic), aralkyl or heteroaryl group which is optionally substituted with one or more C1-C4 alkyl, alkoxy or cyano;R2 and R3 together form a 1-5 ring aryl (including polycyclic), aralkyl or heteroaryl group which is optionally substituted with C1-C4 alkyl, alkoxy or cyano;R4 is hydrogen, C1-C4 alkyl or aryl; andAr is monocyclic, bicyclic or tricyclic aryl or heteroaryl which is optionally substituted with one or more C1-C4-alkyl or alkoxy groups, or an oligomer thereof.

The invention belongs to the technical field of solar cells, and particularly discloses a dimer micromolecule electron donor material and a preparation method thereof. The micromolecule electron donor material contains a molecular structure as shown in a formula (I). The dimer micromolecule electron donor material disclosed by the invention has good solubility, stability, photoelectric property and solution processability, and can be used as an electron donor material of a full-micromolecule organic solar cell. Compared with a monopolymer BTR, the dimer micromolecule electron donor material disclosed by the invention can form a more excellent phase separation morphology with a micromolecule receptor, and particularly, the photoelectric conversion efficiency of a prepared full-micromolecule organic solar cell is obviously improved. The dimer micromolecule electron donor material has huge application potential and value in the fields of organic solar cells and related photovoltaics.

Disclosed are conjugated polymers having desirable properties as semiconducting materials. Such polymers are cheap and easy to synthesize, and can exhibit good solubility and great solution processibility, and that enable highly efficient OPVs.

The invention develops a hole transport polymer material based on triphenylamine-anthracene structure, wherein the chemical structure is described in the description, n has a value of 1-100; A is a unit having a pi-conjugated structure and selected from one of the following units which are described in the description, R1 and R2 are one of the following groups which are described in the description. The hole transport polymer material developed by the present invention has good stability, high carrier mobility and energy level matching of the hole transport polymer material and the photoactivelayer perovskite, the performance of perovskite solar cells is obviously improved and a potential and wide range of applications in the field of perovskite solar cells is shown.

The invention discloses a method for improving the solubility of black phosphorus, a two-dimensional material, through chemical reaction between sodium alkylate and black phosphorus to generate C-O-P bonds, and introducing soluble alkoxyl side chains on the surface or edge of black phosphorus , help black phosphorus dissolve in organic solvents, increase the solubility of black phosphorus in organic solvents, thereby improving the solution processing performance of two-dimensional black phosphorus materials. At the same time, the introduced group protects the edge and surface of the black phosphorus material, thereby improving the atmospheric stability of the material. The preparation method of the invention is simple, has strong operability, does not require extreme reaction conditions, and the solubility of the modified black phosphorus in organic solvents is increased, which is beneficial to further solution processing and application of the black phosphorus.

The invention discloses a conjugated polymer containing a difluoronaphthothiophenedione electron-withdrawing unit as well as a synthesis method and application thereof, and belongs to the field of application of polymers to optoelectronic materials and devices. The conjugated polymer prepared by the method provided by the invention adopts a structure containing difluoro-substituted benzoheterocycle, and fluorine atoms and an electron donor unit form a non-bonding action, so that transmission of current carriers in a planar and rigid main chain structure is enhanced, and obtaining of high mobility is facilitated. Moreover, the conjugated polymer of this type has a wide optical band gap and is suitable for matching with a small molecular receptor with a narrow band gap to realize complementation of absorption spectra, so that the conjugated polymer can be used for manufacturing active layers of a polymer light-emitting diode device, a polymer field effect transistor and a polymer solar cell.

The present invention develops a class of hole-transporting polymer materials based on the triphenylamine-anthracene structure: its chemical structural formula is: wherein the value of n is 1-100; A is a unit with a π-conjugated structure, selected from one of the following units Species: R 1 with R 2 It is one of the following groups: the hole transport polymer material developed by the present invention has the advantages of good stability, high carrier mobility, energy level matching with the energy level of the photoactive layer perovskite, etc., Significantly improve the performance of perovskite solar cells, showing potential and broad application prospects in the field of perovskite solar cells.

The invention belongs to the technical field of solar cells, and specifically discloses a dimer small molecule electron donor material and a preparation method thereof. The small molecule electron donor material contains a molecular structure as shown in formula (I). The dimer small molecule electron donor material of the present invention has good solubility, stability, photoelectricity and solution processability, and can be used as an electron donor material for all small molecule organic solar cells; BTR, the dimer small-molecule electron donor material of the present invention can form a more excellent phase-separated morphology with the small-molecule acceptor, especially the photoelectric conversion efficiency of the prepared all-small-molecule organic solar cell is significantly improved. The invention has great application potential and value in organic solar cells and related photovoltaic fields.

The invention relates to organic electroluminescence or charge transport material with side group of unsaturated ester. The general formula is (I), A is electroluminescence or charge transport material, organic semi- conductor main structure, such as piper, or m- TDATA, or poly fluorene benzene; R is alkyl. The synthesis method comprises following steps: introducing hydroxyl group for main structure A of organic semi- conductor, the ester reacting with hydroxyl to produce side group unsaturated ester, rotary coating and filming, crosslinking and curing with ultra- violet. The invention is characterized by low raw material cost, simple reaction, suitability for large- scale production, more stable chemical property and better solubility of product, good liquid processing property, insoluble of crosslinked molecule in organic solution and free from influence from rotary coating of solution on upper layer.

The invention belongs to the technical field of solar cells, and specifically discloses a locally asymmetric small-molecule acceptor material with terminal groups and its application in all-small-molecule organic solar cells. The molecular structure of the acceptor material is as follows: ) shown. The small molecule acceptor material of the present invention is constructed by the local asymmetric strategy of the acceptor end group, has good solubility, stability, photoelectricity and solution processability, and can be used as an electron acceptor for all small molecule organic solar cells. Bulk material; Compared with the symmetrical electron acceptor Y6, the photoelectric conversion efficiency of the small molecule organic solar cell prepared by the small molecule acceptor material of the present invention is higher. The invention has great application potential and value in organic solar cells and related photovoltaic fields.

A bimetallic-centered organoplatinum complex energy conversion material with a skeleton structure, which uses bidentate and monodentate complexes to mix and match, so that both the bidentate ligand and the monodentate ligand can significantly affect the properties of the organoplatinum metal complex. The main ligand, thus increasing the entry points for property regulation to seven at most, which can greatly increase the space for structural design of organoplatinum metal complexes, that is, the properties of organoplatinum metal complexes can be controlled more finely, and more It is easy to meet the special requirements for materials in new application scenarios; the complex structure of the present invention is novel, the number of controllable sites has increased by nearly 3 times, it has good solubility in common organic solvents, has good solution processing performance, and can emit strong The room temperature phosphorescence has very important application value in the preparation of flexible, rollable and wearable energy conversion devices.

The invention belongs to the technical field of materials, and in particular relates to an electron transport material, a preparation method thereof, and a light-emitting diode. The electron transport material includes metal oxide nanoparticles and PMMA, and the metal oxide nanoparticles and the PMMA are connected by an alkoxysilane coupling agent containing an amino group at the end of the non-alkoxy carbon chain; wherein, One end of the silane coupling agent passes through ‑Si(O‑) 3 It is connected with the metal oxide nanoparticles, and the other end of the silane coupling agent is connected with the PMMA through -NH-CO-. The electron transport material is used to prepare the electron transport layer, which can improve the phenomenon of uneven injection of electrons and holes in light-emitting diode devices. By adjusting the injection ratio of electrons and holes in the light-emitting layer, the effect of balancing charge injection can be achieved. The electron transport layer with adjustable electron injection ability can increase the recombination rate of holes and electrons in the light-emitting layer and improve the luminous efficiency.

The invention discloses a novel organic semiconductor material, a preparation method, and applications thereof. The organic semiconductor has a structural formula, which is represented in the description. The preparation method comprises the following steps: taking naphthalene or derivatives containing a naphthalene structure as the primary raw material, orderly subjecting the primary raw material to 1st and 5th position functionalization reactions, then subjecting the reaction product to carry out coupling reactions with aromatic groups so as to obtain a compound, which contains a phenolic hydroxyl group and takes 1,5-diaryl naphthalene as the core, and then subjecting the compound to carry out ring-closure reactions so as to obtain the novel organic semiconductor material. The novel organic semiconductor material has a good environmental stability and a photoelectric performance, at the same time, has a very good solution processing performance, is easy to prepare and carry out a post modification treatment, and can be widely applied to fields of various semiconductor electronic and photoelectric devices such as organic light emitting diodes, organic thin film transistors, organic light sensors, and the like.

The invention discloses a preparation method of polyphenyl ether thioether sulfoxide. The polyphenyl ether thioether sulfoxide comprises the following ingredients: 4,4'-dyhydroxy diphenyl sulfide and 4,4'-dihalogen diphenylsulfoxide as the reaction monomer of which the mole ratio is 1: 1.02, 1.1-2.5mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the assistant, 0.1-0.5 mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the catalyst, 1000-2000ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the solvent, and 300-500ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the azeotropy dehydrating agent. The process comprises the following steps of: (1) adding the ingredients into a reaction contain and stirring under the protection of nitrogen at the room temperature, rising the temperature, heating, and dehydrating, ending the dehydration when the temperature reaches 130-150 DEG C, subsequently rising the temperature to 170-220 DEG C and carrying out the polymerization reaction, when the reaction is ended, cooling naturally to the room temperature and stopping stirring; and (2) pouring the mixture liquid formed by the polymerization reaction into precipitating agent, precipitating and filtering so as to obtain a filter cake, washing the filter cake and drying in vacuum so as to obtain the polyphenyl ether thioether sulfoxide; and the structural formula is: (FORMULA).