32results about How to "Good reproducibility for multiple synthesis" patented technology

The invention belongs to the technical field of organic photoelectric materials, and discloses a spiro-di-thioxanthene-based small-molecule luminescent material and preparation and application thereof. With spiro-di-thioxanthene nucleuses as framework units, and by changing connecting units at both sides of each spiro-di-thioxanthene nucleus and the number of the spiro-di-thioxanthene nucleuses, the molecular weight, Pi conjugacy and intramolecular charge transfer properties of the small-molecule luminescent material disclosed by the invention can be regulated. A spiro-structure therein can adjust the packing method among molecules. The preparation method of the material disclosed by the invention obtains a target compound with diphenyl sulfide and thioxanthone as original reaction materials by a series of simple reactions. The material structure is uniform, and the molecular weight is determined, and the spiro-di-thioxanthene-based small-molecule luminescent material has good solubility and film-forming property in common solvents. The spiro-di-thioxanthene-based small-molecule luminescent material can be applied as a hole transport material, an electron transport material and a luminescent material in OLED (Organic Light Emitting Diode) devices to improve the performance of the devices, and has profound significance for the development of high-performance devices.

The invention belongs to the technical field of photoelectric materials, and particularly relates to luminescent materials based on thioxanthene-fluorene spiral structures and organic photoelectric devices adopting the materials as luminescent layers. The luminescent materials adopts the thioxanthene-fluorene spiral structures as skeleton units. Intermediates are prepared through Ullmann reactions, and then the target compounds are obtained through Ullmann reactions or Suzuki reactions. The materials are single in structure and definite in molecular weight. The spiral structures of the materials can adjust an intermolecular accumulation manner, thus effectively inhibiting exciplex luminescence. The materials have deep meaning for development of high-effect devices. The organic photoelectric devices adopting the materials as the luminescent layers have good luminescent properties and can be used for small organic molecule light emitting diodes.

The invention belongs to the technical field of photoelectric material, and concretely relates to a benzene-substituted phenothiazine unit-based luminescent material, an intermediate thereof and an organic photoelectric device made by the luminescent material. The luminescent material takes phenothiazine as an initial reaction raw material, the intermediate is prepared through an Ullmann reaction, and a target compound is obtained through the Ullmann reaction or a Suzuki reaction. The material has the advantages of single structure and definite molecular weight; has high decomposition temperature and low sublimation temperature, and the luminescent material with high purity cab can be easily obtained through sublimation. The material has good luminescence performance as a luminescent layer of the organic photoelectric device and can be used for an organic micromolecule light emitting diode.

The invention discloses a water-alcohol-soluble pyridinium salt based on small organic molecules, and a preparation method and an application thereof. According to the material, pyridinium is adopted as a frame; and through the changes upon connection units, molecular weight, pi-conjugacy and electrophilicity of the material can be adjusted. The chemical structure of the material is shown on the right. The preparation method comprises the steps that: p-xylene is adopted as an initial reaction raw material; a series of simple reactions are carried out; and under the effect of thionyl chloride, ring-closure salt-formation is carried out, such that a target compound is obtained. The material provided by the invention has a single structure, a definite molecular weight, good dissolubility, and good film forming property. The material can be used in modification layers of cathodes or anodes of organic photoelectric devices such as polymer electroluminescent diodes, organic solar cells, and the like.

The invention belongs to the technical field of intelligent materials, and discloses a multi-stimulus-response organic small-molecular luminescent material, and preparation and application thereof. By utilizing the dual-fluorescence characteristics of phenothiazine derivatives, a series of luminescent materials are designed and synthesized; and external stimulus effects are utilized to regulate the reciprocal transformation of two conformations, thereby providing a simple feasible effective design strategy for the stimulus-response luminescent material. According to the preparation method, phenothiazine, which is used as a main reaction raw material, is subjected to a series of simple reactions to obtain various target products. The obtained product has the advantages of definite molecular weight, single structure, lower glass transition temperature and greatly higher stimulus-response sensitivity. The stimulus-response principle of the material is conversion between two different conformations instead of the influence of the intermolecular acting force and accumulation mode, so that the material has the multi-stimulus-response characteristic, and is applicable to sensors of force, temperature, pH and the like.

The invention belongs to the technical field of organic photoelectric materials, and discloses a 1,2,3-triazole unit-based micro-molecular luminescent material and an application thereof. The molecular weight, the pi electron conjugate degree, the intramolecular charge transfer and other properties of the material can be adjusted through adopting 1,2,3-triazole as a skeleton unit and changing the kind, the position and the quantity of units connected with the skeleton unit. The organic donor-receptor connection luminescent material can realize intramolecular charge transfer, and reduces the carrier imbalance problem of unipolar luminescent materials in order to simplify the structure of a device and improve the performances of the device. Two adjacent units connected with the triazole unit have spatial distortion due to steric hindrance, so the structural non-planarity is reduced, and the accumulation degree of the material is reduced, thereby the aggregation quenching of the material and luminescence of an exciplex are inhibited. The material can be used in evaporation organic micro-molecular electroluminescent diodes.

The invention provides an organic small-molecule luminescent material and an organic electroluminescent device. The organic small-molecule luminescent material provided by the invention is obtained bycoupling a novel acridine donor unit 10H-spiro[acridine-9,2'-adamantane] with a receptor unit. The organic small-molecule luminescent material has a single structure and a determined molecular weight, is convenient for purification and high in multiple synthetic reproducibility, and has low sublimation temperature and high decomposition temperature and stable film morphology; since the non-aromatic rigid structure adamantine is used as a donor part structure, the organic small-molecule luminescent material has a high photoluminescent quantum yield in the film state; when the organic small-molecule luminescent material is applied to the organic electroluminescent device, the problem of low efficiency of the device caused by serious non-radiative attenuation due to configuration relaxationof an excited state molecule can be effectively solved.

The invention belongs to the technical field of photoelectric materials and particularly relates to an organic small molecular material based on spiro thioxanthene and an organic photoelectric device using the material as a light emitting layer. By using spiro thioxanthene as a framework unit, the organic small molecular material can be used for obtaining a target compound by virtue of friedel craft reaction and Ullmann reaction. The material is single in structure and certain in molecular weight and has good solubility and film forming property in common solvents. The spiro structure of the material can adjust the accumulation mode of molecules, so that an exciplex is effectively prevented from emitting light, therefore, the material is of profound significance in development of high-effect devices. The photoelectric device using the material as the light emitting layer has a good light emitting performance and can be applied to organic small molecular light emitting diodes.

The invention discloses a small-molecular luminescent material based on a trispirocyclic acridine donor unit and a preparation method and application thereof, and belongs to the technical field of organic photoelectric materials. The luminescent material disclosed by the invention comprises the trispirocyclic acridine donor unit; the material has a single material structure and definite amount, isconvenient to purify, has good reproducibility by multiple times of synthesis, and is extremely high in thermal stability and morphological stability. The small-molecular luminescent material based on the trispirocyclic acridine donor unit of the invention is applied to an organic photoelectric device; and compared with a small-molecular electroluminescent material composed of a bispirocyclic acridine donor, the material based on a trispirocyclic acridine donor can obtain darker blue light with higher horizontal dipole orientation and higher device efficiency, achieves higher device efficiency in a larger doping proportion, and thus has a wider application prospect; and for example, the small-molecular luminescent material can achieve higher efficiency in a non-doped device and can be applied to a pure delay fluorescent white light device and the like.

The invention belongs to the technical field of organic photoelectric materials, and discloses an organic micromolecule material based on a 2,6-dimethyl-4-cyanophenyl receptor unit, preparation and application. The organic micromolecule material has a structural formula as shown in formula (I), and Ar in the formula shows a phenyl aromatic amine heterocycle or phenyl aromatic amine donor unit. Thematerial has a weak intramolecular charge transfer state, and thus, fluorescence emission of a zone from dark blue to ultraviolet can be realized. Meanwhile, because the molecules have quite short effective conjugated length, the material has high triplet state energy level. In the application of an organic electroluminescent device, the problem of unbalanced charge carriers of a unipolar organicphotoelectric material can be solved effectively, therefore, the structure of the device is simplified, and the performance of the device is improved.

The invention discloses a 1, 2, 4-oxadiazole micromolecule main body material. The 1, 2, 4-oxadiazole micromolecule main body material contains one or multiple electrophilic 1, 2, 4-oxadiazoles which serve as electron acceptor units, wherein the tail ends of molecules are connected to electron donor units. The invention also discloses a preparation method of the micromolecule main body material. The preparation method is characterized in that a dibromo substituted intermediate, namely a 1, 2, 4-oxadiazole compound is prepared by using bromobenzonitrile as a reaction raw material, and then electron donor units are connected to the dibromo substituted intermediate, namely the 1, 2, 4-oxadiazole compound through Suzuki coupling reaction. The invention also discloses an application of the 1, 2, 4-oxadiazole micromolecule main body material. The 1, 2, 4-oxadiazole micromolecule main body material has relatively good solubility and film-forming property, relatively strong eletrophilicity, relatively low LUMO (Lowest Unoccupied Molecular Orbital) energy level and relatively high electronic mobility.

The invention discloses a small oligothiophene organic molecule and a preparation and application method thereof. The small oligothiophene organic molecule is a small oligothiophene organic molecule compound containing oxadiazole, which is high in thermal stability and solubility and has a relatively broad absorption spectrum in the ultraviolet-visible spectrum. When serving as a photovoltaic material and applied to a small organic molecule solar battery, the small oligothiophene organic molecule can embody a good photovoltaic conversion function and achieve good antibacterial effects and accordingly can serve as antibacterial drugs for bacteria such as Gram-positive bacteria and Gram-negative bacteria.

The invention discloses a biceptor organic luminescence small molecule material. Carbonyl is connected with sulfuryl by a benzene ring to form a novel receptor framework unit; one benzene ring is connected to each of two sides of the novel receptor framework unit so as to add reactive sites. The invention also discloses a preparation method and application of the biceptor organic luminescence small molecule material. The luminescence material connected with a receptor can realize a transfer effect of intramolecular charges; with a bipolar transmission characteristic of the luminescence material, the unbalance of a unipolar luminescent material charge carrier is reduced, and the structure of a device is simplified and the performance of the device is improved. The biceptor organic luminescence small molecule material disclosed by the invention is simple in preparation; various target products are obtained by a series of simple reactions. The material has the advantages of determined molecular weight, single structure, high decomposition temperature and lower sublimation temperature, and can be applied to an organic light-emitting diode.

The invention belongs to the technical field of electroluminescent materials and discloses a conjugated compound containing 9,9-diimidazolyl thiaxanthene and preparation and an application thereof. The conjugated compound containing 9,9-diphenyl thiaxanthene has a structural formula as shown in a formula 1 or a formula 2, wherein R1 and R2 are same or different aromatic rings formed by vinylene bases, ethynylene bases and carbon and hydrogen atoms with donor giving properties, aromatic rings formed by carbon, silicon and hydrogen atoms, C1-C24 alkyl, alkyl substituted conjugated units, alkoxylsubstituted conjugated units or alkyl and alkoxyl simultaneously substituted conjugate units. The compound has a fluorescent property, and can improve the external quantum efficiency of an apparatusobviously as an organic electroluminescent dioxide. The formula is as shown in the description.

The invention discloses a self-host organic light-emitting small molecule material connected with a sulfur-containing non-conjugated unit by a carbonyl group, and increasing reaction sites by connecting benzene rings on two sides separately. The invention further discloses a preparation method and application of the self-host organic light-emitting small molecule material. The self-host organic light-emitting small molecule material disclosed by the invention realizes the intramolecular charge transfer function, and the sulfur-containing non-conjugate unit owned by the self-host organic light-emitting small molecule material can act as a part of a host to show high device performances in a simplified device structure. The self-host organic light-emitting small molecule material disclosed by the invention is simple in preparation method, and various target products are obtained through a series of simple reactions. Furthermore, the material disclosed by the invention is determined in molecular weight, single in structure, very high in decomposition temperature and lower in sublimation temperature, thereby being easily sublimated into a high-purity light-emitting material.

The invention belongs to the field of organic electrochemistry, and discloses a hole transport material based on spiral dithioxanthene micromolecules and a preparation method and an application thereof. The structure of the hole transport material is shown as P1n. According to the hole transport material, a spiral dithioxanthene core is used as a skeleton unit, and the molecular weight, pi conjugacy and material energy level structure properties of the material can be adjusted by changing connecting units on the two sides and the number of the connecting units. The hole transport material is single in structure and definite in molecular weight, has good solubility and film-forming property in common solvents, and can be used as the hole transport material to be applied to perovskite cell devices, so that the performance of the devices is improved, and the hole transport material has far-reaching significance in development of high-performance devices.

The invention discloses an oligothiophene organic small molecule and its preparation method and application; the organic small molecule is an oxadiazole-containing oligothiophene organic small molecule compound, which has good thermal stability and good Solubility, and has a broad absorption spectrum in the ultraviolet-visible region, it is applied as a photovoltaic material to organic small molecule solar cells, showing a good photoelectric conversion function, and it also has a good antibacterial effect, can be used as Antibacterial drugs such as Gram-positive bacteria and Gram-negative bacteria are used.

The invention belongs to the technical field of photoelectric materials, and in particular relates to a luminescent material based on a thioxanthene-fluorene spiro structure and an organic photoelectric device using the material as a luminescent layer. The luminescent material uses a thioxanthene-fluorene spiro structure as a skeleton unit, prepares an intermediate through Ullmann reaction, and then obtains a target compound through Ullmann reaction or Suzuki reaction. This type of material has a single structure and a definite molecular weight; the spiral structure of the material of the present invention can adjust the packing mode between molecules, thereby effectively suppressing the light emission of exciplexes, which has far-reaching significance for the development of high-performance devices; The organic photoelectric device of the layer has good light-emitting performance and can be applied to organic small molecule light-emitting diodes.

The invention discloses a 1,2,4-oxadiazole small molecule host material, which contains one or more electrophilic 1,2,4-oxadiazoles as electron acceptor units. The end is connected with the electron donor unit. The invention also discloses a preparation method of the above-mentioned small molecule host material, using m-bromoxynil as a reaction raw material to prepare a dibromo-substituted intermediate 1,2,4-oxadiazole compound, and then through the Suzuki coupling reaction to convert the electron The donor unit is attached to the bisbromo-substituted intermediate 1,2,4-oxadiazole compound. The invention also discloses the application of the above-mentioned small molecule host material. The small molecule host material of the present invention has better solubility and film-forming property, stronger electrophilicity, lower LUMO energy level and higher electron mobility.

The invention belongs to the technical field of intelligent materials, and discloses a multi-stimulus-response organic small-molecular luminescent material, and preparation and application thereof. By utilizing the dual-fluorescence characteristics of phenothiazine derivatives, a series of luminescent materials are designed and synthesized; and external stimulus effects are utilized to regulate the reciprocal transformation of two conformations, thereby providing a simple feasible effective design strategy for the stimulus-response luminescent material. According to the preparation method, phenothiazine, which is used as a main reaction raw material, is subjected to a series of simple reactions to obtain various target products. The obtained product has the advantages of definite molecular weight, single structure, lower glass transition temperature and greatly higher stimulus-response sensitivity. The stimulus-response principle of the material is conversion between two different conformations instead of the influence of the intermolecular acting force and accumulation mode, so that the material has the multi-stimulus-response characteristic, and is applicable to sensors of force, temperature, pH and the like.

The invention belongs to the field of organic electrochemistry, and discloses a hole-transporting material based on a spiro-bisthiaxanthene small molecule, a preparation method and an application thereof. The structure of this hole transport material is shown below P1n. The hole-transporting material uses the spiro-bisthiaxanthene nucleus as a skeleton unit, and the molecular weight, π-conjugation and energy-level structure properties of the material can be adjusted by changing the connecting units on both sides and the number thereof. The hole transport material has a single structure, a definite molecular weight, and good solubility and film-forming properties in common solvents. It can be used as a hole transport material in perovskite battery devices, thereby improving the performance of the device and for high-efficiency devices. Development has far-reaching implications.

The invention discloses a micromolecular host material based on D-R-A. According to the micromolecular host material, an electrophilic diphenylphosphine oxide group serves as an electron acceptor unit, carbazole or triphenylamine serves as an electron donor unit, and the electron acceptor unit and the electron donor unit are isolated from each other by an insulating alkyl chain. The invention also discloses a preparation method and applications of the micromolecular host material based on D-R-A. The micromolecular host material based on D-R-A has excellent bipolar transmission performance, very good solubility and film-forming performance, and has great potential when serving as a host material of a light emitting layer.

The invention belongs to the technical field of photoelectric materials, and in particular relates to an organic small molecule material based on spiro-thioxanthene and an organic photoelectric device using the material as a light-emitting layer. The small organic molecule material takes spirothioxanthene as a skeleton unit, and obtains the target compound through Friedel-Crafts reaction or Ullmann reaction. This type of material has a single structure, a certain molecular weight, and has good solubility and film-forming properties in common solvents; the spiral structure of the material of the present invention can adjust the packing mode between molecules, thereby effectively inhibiting the light emission of exciplexes. The development of high-efficiency devices has far-reaching significance; organic optoelectronic devices using this material as the light-emitting layer have good light-emitting properties and can be applied to organic small molecule light-emitting diodes.

The invention provides an organic small molecule luminescent material and an organic electroluminescent device. The organic small molecule luminescent material of the present invention is obtained by coupling a novel acridine donor unit 10H-spiro[acridine-9,2'-adamantane] with an acceptor unit, and has a single structure, a definite molecular weight, and is easy to purify , multiple synthesis reproducibility, low sublimation temperature and high decomposition temperature, stable film morphology, and due to the non-aromatic rigid structure of adamantane as the donor part of the structure, the organic small molecule light-emitting material in the film state It has a very high photoluminescence quantum yield, and when it is applied to organic electroluminescent devices, it can effectively solve the problem of low device efficiency due to severe non-radiative attenuation of excited state molecules due to configuration relaxation.

The invention belongs to the technical field of organic photoelectric materials, and discloses an organic small molecule luminescent material and an organic electroluminescence device prepared therefrom. The organic small molecule luminescent material uses 9,9-dimethyl-10-phenylacridine or 10-phenylphenoxazine as the electron-donating unit, through the 2-position of the acridine unit or the phenoxazine The 3 positions of the unit are connected with different electron-withdrawing units, and a series of new high-efficiency organic small molecule light-emitting materials are obtained. The organic small molecule luminescent material of the invention changes the charge transfer characteristics within the material, so that the luminescence peak of the luminescent material is blue-shifted, and can be used as a luminescent layer in an organic electroluminescent device with high device efficiency.

The invention discloses a small molecule luminescent material based on a triple-spiro acridine donor unit, a preparation method and an application thereof, and belongs to the technical field of organic photoelectric materials. The luminescent material of the present invention contains a triple-spiro acridine donor unit, has a single material structure, a certain amount of material, is easy to purify, has good reproducibility in multiple synthesis, and has very high thermal stability and shape stability. The small molecule luminescent material based on triple spiro acridine donor unit of the present invention is applied to organic photoelectric devices, compared with the small molecule electroluminescent material composed of double spiro acridine donor unit, based on triple spiro acridine The donor material can obtain higher horizontal dipole orientation, higher device efficiency and bluer light color, and obtain higher device efficiency in a wider doping ratio, thus having a wider application prospect , for example, higher efficiency can be obtained in non-doped devices, and can be applied to pure delayed fluorescence white light devices, etc.