18results about How to "Reduce quenching" patented technology

The invention belongs to the field of organic electroluminescent materials, and discloses a blue light host material, a preparation method and an organic electroluminescent device. The structure of the blue light host material is as shown in a chemical formula I: # imgabs0 #. After the blue light host material provided by the invention is applied to the organic electroluminescent device, the driving voltage of the photoelectric device can be reduced, the luminous efficiency of the photoelectric device can be improved, and the service life of the photoelectric device can be prolonged.

The invention relates to a copper phthalocyanine covalent organic framework material with photodynamic / chemical dynamic sterilization and a preparation method and application thereof, and belongs to the technical field of advanced functional materials and biological medicines. A covalent organic framework is synthesized by taking 4, 4 ', 4', 4 ''-tetra-(4-amino) copper phthalocyanine (CuTAPc) as a main structural unit, and the distance between photosensitizers can be limited, so that the self-aggregation quenching of the photosensitizers is reduced, and a good photodynamic effect is realized. Meanwhile, the copper ions consume glutathione overexpressed in the bacterial microenvironment, consumption of active oxygen is avoided, Fenton-like reaction is further triggered, toxic active oxygen is generated, chemical power synergistic treatment is achieved, the defect that the depth of light penetrating through the tissue is limited is effectively overcome, and a good treatment effect on deep tissue is achieved. A composite antibacterial film is further constructed based on the material. The multifunctional material has good stability and active oxygen generation capability, has good biological safety, and has huge potential in the fields of bacterial infection treatment, fruit and vegetable preservation and the like.

The invention discloses a method for removing organic matters in water based on an electrochemical coupling ozone system of an LDH-loaded graphite felt cathode, which comprises the following steps: taking MFe-LDH / GF as a cathode, taking a platinum sheet as an anode, taking a reaction solution comprising pollutants and an electrolyte, taking Na2SO4 as the electrolyte, adding the two electrodes into the reaction solution, and filling gaseous ozone into the reaction solution, adjusting the pH value of the reaction liquid to 3-9, and charging current into the two electrodes, so as to construct an electrochemical coupling ozone system to remove pollutants. By utilizing the method, the yield of HOO can be improved, so that the removal of organic pollutants is enhanced.

The invention relates to the technical field of medical examination, in particular to a method for rapidly detecting a neutrophil extracellular trapping net. The method comprises the following steps: (1) taking a human whole blood sample, adding a hemolytic agent, then adding a mixed fluorescent antibody staining solution, shaking and uniformly mixing, and standing and incubating at room temperature; (2) centrifuging after incubation in the step (1), absorbing and discarding a supernatant, washing with a washing solution, centrifuging, absorbing and discarding the supernatant; (3) adding a washing solution to resuspend the cells; and (4) detecting by adopting a flow cytometer. The detection method is good in stability, high in repeatability and high in fluorescence intensity, and can be used for auxiliary diagnosis of diseases.

The utility model provides an organic electroluminescence display panel and an AMOLED device, the display panel comprises an OLED light-emitting device, the OLED light-emitting device comprises a first electrode, a hole conducting layer, an electron blocking layer, a light-emitting layer, an electron conducting layer and a second electrode; the light-emitting layer comprises a green light-emitting layer, and a hole dopant layer is arranged between the hole conducting layer and the electron blocking layer corresponding to the green light-emitting layer. The hole dopant layer is additionally arranged between the hole conducting layer and the electron blocking layer corresponding to the green light-emitting layer, the energy level difference between the hole conducting layer and the electron blocking layer is reduced through the hole dopant layer, carrier transmission is improved, and resistance is reduced; furthermore, by increasing the thickness of the electron blocking layer, the I-V curve and the working voltage of the display panel are not affected by the thickness of the electron blocking layer, but exciton quenching can be reduced, so that the luminous efficiency of the display panel is improved.

The invention belongs to the technical field of organic conjugated compounds, and particularly relates to an amidinourea-containing water-soluble arylacetylene illuminant and a preparation method and application thereof.The preparation method of the amidinourea-containing water-soluble arylacetylene illuminant comprises the following steps that (1) in the nitrogen atmosphere, an amidinourea-containing water-soluble arylacetylene illuminant is obtained; the method comprises the following steps: reacting a guanidyl monomer, an alkyne compound, a catalyst and a mixed solvent to obtain a reaction solution; (2) extracting the reaction liquid, drying an organic phase, performing rotary evaporation under reduced pressure to obtain a crude product, and separating and purifying the crude product to obtain an amidinourea-based aromatic acetylene compound; and (3) mixing the amidinourea-based aromatic acetylene compound with dichloromethane, adding trifluoroacetic acid, stirring, carrying out reduced pressure rotary evaporation, washing with an organic solvent, and drying to obtain the amidinourea-containing water-soluble aromatic acetylene illuminant. The water-soluble arylacetylene illuminant containing the amidinourea group is excellent in activity, good in water solubility, stable in chemical property, high in sensitivity and high in selectivity.

This invention provides a fused heterocyclic compound and its organic electroluminescent device, specifically relating to the field of organic electroluminescent materials technology. The fused heterocyclic compound provided by this invention possesses excellent electron transport capabilities, suitable HOMO and LUMO energy levels, and a high triplet energy level, which can reduce the electron transport barrier and improve the balance of electron and hole transport. Simultaneously, it can effectively confine holes within the luminescent layer, increasing the probability of effective exciton recombination, thereby reducing the driving voltage, improving luminous efficiency, and extending device lifetime. Furthermore, this fused heterocyclic compound exhibits strong rigidity and a high glass transition temperature, making it less prone to crystallization and aggregation during vapor deposition, thus possessing good film-forming properties and thermal stability. This improves the stability of organic electroluminescent devices and extends the lifespan of electronic components.

The present application relates to the field of organic electroluminescent materials, in particular to a kind of compound, organic optoelectronic device and display or lighting device.The chemical structure of the compound is as shown in formula (I)-(VI):The compound of the present application is applied to organic device, can make device have higher luminous efficiency, thereby improving the efficiency of device, while molecule has high stability, can further improve the luminous efficiency and service life of device.

The invention discloses an organic light-emitting compound and an organic electroluminescent device thereof, the compound is used as a bipolar main body material, and an electron donor unit D (Donat), an electron acceptor unit A (Aceppt) and a large steric hindrance construction unit are introduced, so that the transmission of current carriers can be effectively balanced, excitons can be uniformly distributed, and the light-emitting efficiency is improved. The recombination of carriers at an interface is avoided, and the quenching of triplet state-triplet state under high exciton concentration is reduced, so that the performance and the stability of the device are improved.

The invention provides an organic electroluminescent material and an organic electroluminescent device comprising the same, and belongs to the field of organic photoelectric materials, and the organic electroluminescent material has a structure shown in a general formula I. The organic electroluminescent material provided by the invention is used as a material of a luminescent layer of the organic electroluminescent device, and the luminescent layer has a good luminescent effect. The driving voltage of the device can be reduced, the maximum external quantum efficiency of the device can be improved, and the phosphorescence lifetime of the device can be prolonged.

The application discloses three designs and synthesis of thermal crosslinking thermal activation delayed fluorescent materials based on styrene groups and research thereof, relates to the technical field of fluorescent non-conjugated polymers, and the polymer is homopolymerized by using dendritic macromonomer with styrene at both ends, and different peripheral groups are adopted to encapsulate the dendritic core. The synthesis method comprises Suzuki coupling reaction, methylation reaction and nucleophilic substitution reaction. Research shows that the quenching phenomenon of the encapsulated dendritic TADF triplet exciton is significantly inhibited. The good solubility of the polymer enables the polymer to be applied to solution processing OLED devices. In addition, the dendritic monomer is polymerized by using an in-situ polymerization mode, the polymerization reaction yield of the AIBN initiator is avoided, and the reaction cost and reaction time are greatly saved. The obtained polymer is used to manufacture non-doped OLED devices, and the OLED devices exhibit excellent electroluminescent performance. The research shows certain potential for meeting the market demand of high-performance and low-cost OLEDs.

The present invention discloses a method for preparing a small-scale non-premixed low-heat dissipation combustion chamber high-entropy ceramic thermal barrier coating, which belongs to the technical field of coatings. The method for preparing a small-scale combustion chamber high-entropy thermal barrier coating comprises: S1, drying the raw materials; S2, ball milling, drying, and sieving the raw materials; S3, sintering the sieved powder, and ball milling, drying, and sieving after sintering; S4, spraying a bonding layer on the inner wall of the combustion chamber; S5, vacuum heat treatment of the combustion chamber sprayed with the bonding layer; S6, spraying a high-entropy ceramic layer on the bonding layer. The chemical formula of the high-entropy ceramic layer is La 2( Z r0.3 Hf 0.2 Ce 0.2 Sn 0.2 Ti 0.1 )2O7. The bonding layer is NiCo 23 Cr 17 Al 12 Y 0.5 The present invention adopts the above-mentioned preparation method of the small-scale non-premixed low heat dissipation combustion chamber high entropy ceramic thermal barrier coating. The high entropy ceramic layer has a higher thermal expansion coefficient and lower thermal conductivity, which is beneficial to alleviate the heat load on the channel combustion chamber, increase the combustion chamber gas boundary contact temperature, adjust the thermal flow field in the cylinder, promote the complete combustion of the fuel, and effectively slow down the flame quenching phenomenon.

The invention discloses an ITO substrate and a preparation method thereof, an organic electric pumping laser diode and a preparation method and application of the organic electric pumping laser diode. The ITO substrate comprises a light-transmitting base plate, an ITO layer, a metal layer and a light-transmitting insulating layer which are sequentially arranged in a stacked mode, the ITO layer is a patterned ITO layer, the metal layer is a patterned metal layer, the size and the pattern of the metal layer are matched with those of the ITO layer, the light-transmitting insulating layer is a patterned light-transmitting insulating layer and only covers the middle area of the metal layer, and the light-transmitting insulating layer is a patterned light-transmitting insulating layer and only covers the middle area of the metal layer. The middle area of the ITO substrate is further provided with a plurality of through holes which penetrate through the light-transmitting insulating layer and the metal layer and directly reach the surface of the ITO layer. The ITO substrate has low optical loss and high conductivity, the organic electric pumping laser diode made of the ITO substrate can achieve high-current-density injection, the performance is quite excellent, and the ITO substrate is suitable for large-scale industrial production and application.

This invention relates to the field of organic electroluminescent materials, specifically to an iridium metal complex, and more particularly to an iridium metal complex for deep red-near-infrared emission and its applications, as well as organic electroluminescent devices using the iridium metal complex of this invention. The iridium metal complex of this invention has the structure shown in formula (1). OLED devices prepared using the iridium metal complex of this invention exhibit higher luminous efficiency and better lifespan, demonstrating promising application prospects.

The invention relates to the field of biological sequencing, in particular to application of cyanuric acid in sequencing. The invention provides an application of cyanuric acid in sequencing. The technical key point of the invention is as follows: in a DIPSEQ high-throughput sequencing cPAS biochemical reagent, by adding CA (CyanuricAcid), the stability of DNB, enzyme and azide groups can be promoted, the reaction efficiency can be improved, Lag / Runon can be reduced, and the sequencing quality can be improved.

The present invention discloses a blue light-emitting composition and an organic electroluminescent device containing the same. The blue light-emitting composition comprises a host material having a general structural formula as shown in Formula I, and a guest material having a general structural formula as shown in Formula II. By using the blue light-emitting composition provided in the present invention, the effects of improving the orientation of the organic light-emitting material, increasing the life span, and reducing quenching can be achieved; at the same time, the organic electroluminescent device prepared by using the blue light-emitting composition of the present invention has good performance in external quantum efficiency, life span, and driving voltage.

The invention provides a green phosphorescent host material and an organic electroluminescent device, and belongs to the field of electroluminescent materials, the structural general formula of the green phosphorescent host material is a chemical formula I. The green phosphorescent host material provided by the invention takes a rigid dibenzofuran group or dibenzothiophene group as an intermediate bridging group; a carbazole group and a triazine group are respectively connected to the first position and the fourth position of a dibenzofuran group or a dibenzothiophene group, and the structure can effectively improve the hole and electron transmission capability, enables holes and electrons to reach a balance state, enables a material device to maintain low driving voltage, and has high luminous efficiency and long service life.

The invention relates to a fluorescent whitening agent as well as a preparation method and application thereof. The structural formula of the fluorescent whitening agent is as shown in formula (1), in the formula (1), n and m are respectively and independently selected from natural numbers greater than or equal to 2, R1 and R2 are respectively and independently selected from-OH,-COOM,-SH or-SO3M, R3, R4, R5 and R6 are respectively and independently selected from-H,-COOM or-SO3M, and M is selected from-H,-Na or-K.