695 results about "Electron acceptor" patented technology

The invention discloses a dithieno-cyclopentadiene copolymer photovoltaic material, a preparation method and photovoltaic application of the dithieno-cyclopentadiene copolymer photovoltaic material. According to the invention, a dithieno-cyclopentadiene electron donor unit is synthesized, and the dithieno-cyclopentadiene electron donor unit is connected with another electron acceptor unit dithieno benzothiadiazole through a carbon-carbon single bond by a Stille coupling method. The polymer donor photovoltaic material has optical absorption complementary with that of a fullerene acceptor material and HOMO and LUMO energy levels matched with those of the fullerene acceptor material. A polymer solar cell is prepared by taking the polymer as an electron donor and fullerene as an electron acceptor, the highest energy conversion efficiency of the polymer solar cell can reach 5.44%, and the polymer solar cell has relatively good photoelectric conversion efficiency.

The invention discloses a dimeric electron acceptor, which has one of the following structural formula: # imgabs0 #, in which R1 and R2 are respectively and independently selected from C1-C100 alkyl groups; x comprises H, F, Cl, I, NO2 or CN. According to the dimeric electron acceptor, a 3, 4-ethylenedioxythiophene or 3, 4-dimethoxythiophene unit serves as a connecting unit, an alkoxy side chain is connected to an outer side chain, the open-circuit voltage Voc of a solar cell device with the dimeric electron acceptor as an acceptor material can reach 1.02 V, the energy conversion efficiency PCE is 15.1%, and the dimeric electron acceptor is Vocgt reported at present; and the maximum value of PCE in a dimer acceptor system of 1V. The invention also provides a preparation method of the dimer electron acceptor and an organic photovoltaic device containing the dimer electron acceptor.

The invention provides a solid polymer electrolyte capable of working in a wide temperature range. The solid polymer electrolyte is obtained by carrying out in-situ polymerization on a precursor solution on the surface of a base material, wherein the precursor solution is prepared from a first type of polymeric monomer, a second type of polymeric monomer, an initiator and electrolyte salt; the first polymeric monomer is an electron donor, and the electron donor is at least one of cyclic ether and olefin monomers; the second polymeric monomer is an electron acceptor, and the electron acceptor is one or more of cyclic ester, olefin monomers and anhydride monomers. The solid polymer electrolyte keeps good mechanical performance and high ionic conductivity in a wide temperature range, and an assembled solid secondary battery has good electrical performance and cycling stability.

The invention provides a low C / N sewage nitrogen and phosphorus removal method based on MABR-DPR-anaerobic ammonia oxidation, which couples anaerobic, membrane aeration anoxic and anaerobic ammonia oxidation processes, forms an anoxic environment in a water phase of a membrane aeration reactor, and enriches denitrifying phosphorus-accumulating bacteria. And the anaerobic phosphorus release and anoxic denitrification nitrogen and phosphorus removal processes of the denitrifying phosphorus-accumulating bacteria are realized through the backflow of the sludge between the anaerobic tank and the membrane aeration reactor. Nitrite accumulated in effluent of the membrane aeration reactor supplements an electron acceptor for a subsequent anaerobic ammonia oxidation deep denitrification process, and meanwhile, a carbon source is obviously consumed in an anoxic denitrification nitrogen and phosphorus removal process of the membrane aeration reactor, so that inhibition of influent organic matters on an anaerobic ammonia oxidation process is effectively weakened. The process solves the problem that the carbon source is seriously insufficient in the nitrogen and phosphorus removal process of the low C / N sewage, and the stable and efficient nitrogen and phosphorus removal effect can still be maintained under the condition that an external carbon source is not needed.

A microbial electrochemical filter and a method for using same to remove iron, manganese and ammonia nitrogen from underground water, which belong to the technical field of wastewater treatment. The filter and the method solve the problem of existing biological filters having poorer operation performance and stability under oligotrophic conditions. The microbial electrochemical filter comprises a cylinder (1), an electrochemical system, and a filter column (4), wherein the electrochemical system and the filter column (4) are arranged in the cylinder (1); the electrochemical system is arranged above the filter column (4); the filter column (4) consists of a carrier, a surface of which is covered with a biological film; and a water outlet (8) is provided in a lower portion of a side wall of the cylinder (1), and an overflow port is provided in an upper portion of the side wall of the cylinder (1). In the method, by means of an electro-oxidation process, some pollutants are removed before entering a filter column (4), thus reducing the bioremoval pressure in the filter column (4); the abundance and carbon sequestration capability of autotrophic microbes in a biological filter are enhanced by means of an electrochemical system, thereby providing an additional carbon source and an additional electron acceptor for the autotrophic biological filter, and prompting the growth and metabolism of biological communities; and the microbial electrochemical filter provides conditions for the growth of heterotrophic iron-manganese oxidizing flora, and achieves the generation and coverage of more iron-manganese active oxide films on the surfaces of filter materials.

The invention belongs to the technical field of sewage treatment, and discloses an anaerobic ammonia oxidation enhanced denitrification device and method based on an electron mediator type biological carrier and iron oxide. The anaerobic ammonia oxidation enhanced denitrification device comprises a reactor main body, a heat preservation circulating water device, a stirring device, a water inlet pipeline and a water outlet pipeline, anaerobic ammonium oxidation bacteria are contained in the reactor main body, a certain proportion of electron mediator type biological carriers are filled in the reactor, and a proper amount of iron oxide is added; wherein the added high-valence iron oxide can be used as an extracellular electron acceptor of anaerobic ammonium oxidation bacteria, the electron mediator type carrier can be used as a redox mediator, and nitrogen removal of the anaerobic ammonium oxidation system is promoted by strengthening the extracellular electron transfer process of the anaerobic ammonium oxidation bacteria.

An in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply relates to the field of solid waste resource utilization and renewable energy technology. The purpose of the present invention is to solve the problems of low hydrogen solubility and insufficient carbon dioxide bioconversion in the biogas purification process, as well as the inhibitory effect of excessive hydrogen dosage on biogas production by anaerobic digestion of sludge. The present invention utilizes the anaerobic digestion process of sludge in an anaerobic environment to produce biogas, and adds hydrogen to the process by direct hydrogen input or zero-valent iron corrosion, so that hydrogen penetrates into the liquid phase. The hydrogenotrophic methanogens in the system use hydrogen as an electron donor and carbon dioxide in the biogas produced by anaerobic digestion of sludge as an electron acceptor to convert hydrogen and carbon dioxide into methane to achieve in-situ biogas purification. The present invention can obtain an in-situ biogas purification method for anaerobic digestion of sludge based on exogenous hydrogen supply.

The invention discloses a sixteen-hole multifunctional polyester staple fiber and a preparation method thereof, and relates to the technical field of functional fibers. Sodium alginate is used as a skin layer, polyethylene glycol terephthalate is used as a core layer, functional layering is achieved through skin-core compounding, and the interface bonding force between sodium alginate and polyethylene glycol terephthalate is enhanced through glutaraldehyde; in the melting processing process of polyethylene glycol terephthalate, a chain extender is used for reducing the melting point of the polyethylene glycol terephthalate so as to reduce the pyrolysis risk of sodium alginate, meanwhile, a low-polarity lubricant is used for grafting zirconium carbide so as to balance the lubrication and enhancement functions and realize far infrared and antistatic properties, and then an aniline monomer is initiated to polymerize on the surface of zirconium carbide so as to prepare the far infrared anti-static polyethylene glycol terephthalate composite material. Seaweed-carbon can generate far infrared radiation and negative ions, and zirconium carbide can be used as an electron acceptor to enhance the carrier mobility, so that the far infrared and antistatic properties of the fiber are enhanced.

The invention provides an aza-BODIPY dye molecule with near-infrared two-region absorption, 4-cyanophenyl is used as an electron acceptor for modification at 1, 7 sites, thiophene-triphenylamine is used as a strong electron donor for modification at 3, 5 sites, an aza-BODIPY dye with extremely strong intramolecular charge transfer is constructed, the absorption spectrum of the aza-BODIPY dye is extended to 1100 nm, and after the aza-BODIPY dye molecule forms an aggregation state, the absorption spectrum of the aza-BODIPY dye molecule has strong absorption spectrum. The aza-BODIPY dye molecule has the advantages that the absorption spectrum of the aza-BODIPY dye molecule is extended to 1250nm, the aza-BODIPY dye molecule has good absorption in an NIR-II region, and the nano-particles prepared by self-assembling the aza-BODIPY dye molecule and the amphiphilic polymer F127 show 46.2% of high photothermal conversion efficiency under the excitation of 1060nm laser, can be used for photoacoustic imaging and photothermal therapy, and can be used for preparing the nano-particles. The problems that tissue penetrability is insufficient and deep tumors cannot be diagnosed and treated in traditional tumor light diagnosis and treatment are solved.

The invention discloses a hole transport material, a preparation method thereof and a perovskite solar cell, and belongs to the technical field of photovoltaic solar materials. The molecular structural formula of the compound is shown as a formula (I) or a formula (II). According to the invention, a quinoxaline part is used as an electron acceptor for extended conjugate modification, a plurality of single donors such as triphenylamine electron donating groups, dihydroacenaphthene, binaphthyloxy and the like are introduced, the hole transport material with a multi-donor structure is constructed, and the hole transport material adjusts the distribution of HOMO-LUMO, increases charge transfer channels, improves the separation and transport capabilities of charges, and improves the hole transport efficiency. Therefore, the mobility of current carriers is improved. A tert-butyl unit is further introduced to the periphery of the triphenylamine group, the hydrophobic property of tert-butyl reduces the interface energy barrier between the hole transport layer and the perovskite precursor solution, directional growth and defect passivation of perovskite crystals are promoted, and the crystallization quality of the perovskite thin film and the device performance are improved.

The invention relates to the technical field of preparation of organic solar cells, in particular to an organic solar cell based on a halogenated additive, and the structure level of a forward device of the solar cell sequentially comprises a transparent conductive substrate, a hole transport layer, an organic active layer, an electron transport layer and a metal electrode from bottom to top, the organic active layer comprises a polymer donor PM6, a non-fullerene electron acceptor L8-BO and a halogenated additive DFBB. Through addition of a halogenated additive DFBB, strong non-covalent bonding is formed by unique sigma-hole interaction of the halogenated additive DFBB and a receptor L8-BO, and meanwhile, the molecular stacking orientation of the active layer can be accurately regulated and controlled by the polymer electrostatic potential extreme value of the halogenated additive DFBB. The halogenated additive DFBB preferentially generates strong sigma-hole interaction with acceptor molecules, ordered accumulation of L8-BO is remarkably enhanced, meanwhile, the crystallization behavior of the donor PM6 is balanced through the synergistic halogen effect, a bicontinuous interpenetrating network structure is formed, and the photo-generated exciton yield is improved.

Diaryloxybenzoheterodiazole compound disubstituted with thienothiophene groups having general formula (I):wherein:Z represents a sulfur atom, an oxygen atom, a selenium atom; or a NR5 group wherein R5 is selected from C1-C30;R1 and R2, identical to or different from each other,and R3 and R4, identical to or different from each other, represent a hydrogen atom;A represents an electron acceptor group having general formula (II):wherein X1 and X2, identical to or different from each other, represent a hydrogen atom, or a halogen atom; or are selected from C1-C30.The compound is used as an electron acceptor compound in organic photovoltaic devices (or solar devices); is used in perovskite-based photovoltaic cells (or solar cells) in the layer based on electron transport material (“Electron Transport Layer”—ETL); and is used in the construction of organic thin film transistors, or of organic field effect transistors.

The invention discloses a preparation method of a boron-dipyrrolyl porous organic polymer and application of the boron-dipyrrolyl porous organic polymer in photocatalytic production of hydrogen peroxide. The boron-dipyrrolyl porous organic polymer is a cyano-containing boron-dipyrrolyl porous organic polymer. The preparation method comprises the following steps: carrying out a Sonogashira coupling reaction on an electron acceptor boron dipyrromethene derivative and an electron donor compound to prepare a boron dipyrromethene-based porous organic polymer containing acetylenic bonds; and carrying out free radical reaction modification on the BODIPY porous organic polymer containing the acetylenic bond to prepare the BODIPY porous organic polymer containing the cyano group. The preparation method comprises the following steps: polymerizing an electron acceptor boron dipyrromethene and different electron donors by utilizing a Sonogashira coupling reaction to obtain a boron dipyrromethene-based porous organic polymer containing an acetylenic bond, and carrying out post-modification on the acetylenic bond through a free radical reaction to obtain the boron dipyrromethene-based porous organic polymer containing cyano groups with good photocatalytic performance. The polymer can be used for photocatalytic production of hydrogen peroxide in water.

The invention discloses an ultra-narrow band gap electron acceptor which is represented by a formula (I) and takes a phenazine structure as a core, a preparation method of the electron acceptor and application of the electron acceptor in an organic solar cell. The phenazine derivative ultra-narrow band gap receptor provided by the invention has an extremely low film optical band gap (-1.2 eV). The organic solar cell prepared by matching with a narrow-band gap polymer donor PTB7-Th as an active layer has high energy conversion efficiency and short-circuit current. In addition, the transparent organic solar cell prepared from the active layer obtains higher energy conversion efficiency on the premise of maintaining higher average visible light transmittance. The phenazine derivative ultra-narrow band gap receptor prepared by the invention has a huge application prospect in the field of transparent organic solar cells. # imgabs0 #

The invention discloses preparation of a polycyclic aromatic hydrocarbon-based pre-sodium modification agent and application of the pre-sodium modification agent in a hard carbon negative electrode, and belongs to the technical field of negative electrodes of sodium-ion batteries. The chemical property of polycyclic aromatic hydrocarbon is adjusted by virtue of induction and conjugation effects, and the pre-sodium-modification agent with controllable chemical reaction rate is prepared and applied to the hard carbon negative electrode. Firstly, in an ether-based solvent, polycyclic aromatic hydrocarbon molecules are selected to be grafted with functional groups with different electronegativity to serve as electron acceptors, the electron acceptors and metal sodium are subjected to free radical reaction, and a pre-sodium agent is obtained and used for efficient pre-sodium. By selectively adjusting the reducibility of the pre-sodium modification agent and assisting the generation of a high-stability interface film, the damage to the internal structure of the negative electrode and the excessive sodium modification are avoided. According to the preparation process, the pre-sodium modification agent can be obtained only through one-step stirring, and the electrode is soaked to achieve pre-sodium modification. The method has the advantages of simplified steps, simple equipment and good repeatability, and is suitable for large-scale production.

The invention relates to a method for quantitatively evaluating the anti-oxidation effect of a skin surface in real time. The method comprises the following steps: applying a reaction medium with a standard potential window on the skin surface; the reducing capacity of skin antioxidant molecules is indirectly reflected through real-time potential drift of electron concentration change in the reaction process; constructing a surface electron acceptor reaction relation framework taking the skin as a reaction main body; deploying the modified electrode array on the skin surface; each pair of electrode sites responds to corresponding reactive oxygen species (ROS); collecting a transient response current and time curve and generating a characteristic curve combination map; an anti-oxidation response electrochemical space fingerprint is established through the pattern form and the response gradient; dividing the electrochemical response signal into a plurality of reaction micro windows; establishing a biophysical state vector of the individual skin by detecting basic conductivity, moisture capacitance and micro-temperature change of the skin surface; the vectors are used for conducting numerical value normalization and response range calibration on the response curve, and a unified standardized anti-oxidation response value is output.

A long-persistent luminescence emitter containing a polymer that contains, relative to the total molar amount of an electron donor structural unit and an electron acceptor structural unit therein, 70 mol % or more of an electron donor structural unit and less than 30 mol % of an electron acceptor structural unit, or containing a polymer that contains, relative to the total molar amount of an electron donor structural unit and an electron acceptor structural unit therein. 70 mol % or more of an electron acceptor structural unit and less than 30 mol % of an electron donor structural unit. The emission decay after stopping light irradiation to the emitter is power law decay.

The invention relates to a preparation method of a battery pole piece, the battery pole piece and a battery, the preparation method of the battery pole piece comprises the following steps: preparing the battery pole piece by using a dry process, the used active substance is graphite, and the binder is PTFE; soaking the battery pole piece in a Lewis acid solution; and drying the battery pole piece soaked in the Lewis acid solution. For the graphite negative pole piece prepared by adopting a dry process, in order to reduce side reaction between PTFE and graphite and improve the first effect of the lithium ion battery, Lewis acid is adopted to treat the pole piece, and the Lewis acid can effectively break C-F bonds at the tail end of a PTFE chain and reduce side reaction between PTFE and graphite through the strong electron acceptor property of the Lewis acid, so that the positive effect of the lithium ion battery is improved. Therefore, the first cycle efficiency of the lithium ion battery is improved.

The invention discloses preparation and application of a poly-anthraquinone thiophene film, the prepared film material can be used as a novel electrochromic material, and belongs to the field of intelligent discoloration, and the anthraquinone thiophene material is simple in synthetic route, mild in condition and low in cost. A novel D-A type monomer is synthesized by taking anthraquinone as an electron acceptor and thiophene derivatives as electron donors, and the monomer can be used for preparing a polymer film through electrochemical polymerization.

The invention discloses a biphenyl derivative photoinitiator, a preparation method of the biphenyl derivative photoinitiator, a photocuring thin film material and a preparation method and application of the photocuring thin film material. The biphenyl derivative has a structural formula shown as a formula (I), R1 is an electron donor group, and R2 is an electron acceptor group. According to the invention, biphenyl is taken as a main body structure, different donor groups R1 and acceptor groups R2 are connected, the photoinitiator is synthesized through Suzuki reaction, and a polymeric monomer material is N, N-dimethylacrylamide (DMA). The photocuring material with long afterglow luminescence can be obtained through an ultraviolet irradiation method, and under the irradiation of a 365nm ultraviolet lamp, an initiator absorbs photons to generate active species to attack double bonds in a monomer to initiate a polymerization reaction. The light-cured film can generate long afterglow luminescence as long as several seconds after being illuminated, and can be applied to the aspects of counterfeiting prevention, 3D printing, photoetching and the like.

The invention discloses a compound, a kit and application thereof, and relates to the technical field of biomedicine. The compound comprises an electron acceptor aromatic unit, an optional electron donor aromatic unit and a shielding unit, and the shielding unit shields intermolecular interaction of the electron acceptor aromatic unit and / or the electron donor aromatic unit. Wherein the electron acceptor aromatic unit, the electron donor aromatic unit and the shielding unit are connected through covalent bonds. The compound can be used as a molecular near-infrared-II fluorophore, and has higher quantum yield and good biocompatibility. The compounds emit fluorescence in the range of 900-1400 nanometers, the intermolecular and intramolecular interaction of the conjugated skeleton is weakened, and the quantum yield is improved. The high quantum yield, biocompatibility and near-infrared II emission of the compound provide opportunities for in-vivo application of near-infrared II imaging by using molecular fluorophores.

The invention relates to a hydrogen peroxide probe and a preparation method and application thereof, the hydrogen peroxide probe connects pyridinium to a difluoro boron indole electron acceptor, can induce fluorescence quenching by distorting intramolecular charge transfer, generates weak fluorescence when the concentration of hydrogen peroxide in mitochondria is low, and can detect the mitochondria. According to the present invention, the hydrogen peroxide probe is used for detecting the hydrogen peroxide concentration in the mitochondria, the continuous fluorescence response is generated when the hydrogen peroxide concentration in the mitochondria is increased, the qualitative and quantitative analysis of the hydrogen peroxide level in the mitochondria is achieved, and the hydrogen peroxide probe can target the increased lipid droplet migration after the oxidative stress is caused by the increase of the hydrogen peroxide concentration so as to well detect the oxidative stress process; the method has important significance for exploring related damage of cell oxidative stress.

The invention belongs to the technical field of photosensitizers, and particularly relates to design, synthesis and sterilization application of an aggregation-induced emission probe based on a biological orthogonal reaction metabolism anchoring viable bacterium strategy. The aggregation-induced emission compound (aggregation-induced emission probe) is of a typical D-pi-A structure, takes a triphenylamine structural unit as an electron donor spacer group in a molecular system to prevent pi-pi accumulation, and takes a thiophene ring and a carbon-carbon double bond as electron donors and a pi bridge and a nitro unit as electron acceptors to synthesize the aggregation-induced emission probe. And finally, an important synthetic raw material D-type amino acid (D-Ala) of a bacterial cell wall is also connected. The prepared aggregation-induced emission compound is long in fluorescence lifetime and high in fluorescence intensity, a large amount of active oxygen can be generated after illumination to effectively kill viable bacteria, the active oxygen can be absorbed and utilized by bacteria through metabolism, and differential detection of the viable bacteria and dead bacteria is achieved.

The present invention discloses an organic electron acceptor containing a carbazole side chain and its application in solar cells. The organic electron acceptor containing a carbazole side chain has a structure shown in the following formula: #imgabs0# wherein R1 and R2 are independently a linear or branched alkyl group containing 1-18 carbon atoms, and A is an electron-withdrawing functional group. The present invention uses a non-fully fused ring structure based on trithiophene as the central conjugated skeleton of the organic electron acceptor, introduces a carbazole group as a side chain, prevents excessive elevation of the molecular HOMO energy level, and inhibits the internal rotation between the trithiophene rings connected by single bonds through its rigid large steric effect, thereby ensuring the planarity of the acceptor molecule, regulating the stacking between molecules, and simultaneously inhibiting the aromatic amine group from inducing the molecular skeleton to form a quinone structure, thereby improving the molecule's resistance to photooxidation.

The invention relates to the technical field of biological denitrification, in particular to a nitrogen-doped carbon dot-based microbial electronic control denitrification system and application thereof. The system comprises electron donor microorganisms, electron acceptor microorganisms and nitrogen-doped carbon dots, the nitrogen-doped carbon dots serve as electron mediators outside cells, an efficient extracellular electron transfer network is constructed, and interspecific electron transfer resistance is reduced; meanwhile, the nitrogen-doped carbon dots can regulate and control intracellular electron transport chains and the energy metabolism process, the improvement of the reducing power and the energy level is promoted, and the metabolism mode optimization is realized. By cooperatively regulating and controlling generation, transmission and utilization of electrons under an extreme electron donor limited oligotrophic condition, the system disclosed by the invention can realize efficient denitrification, avoid nitrite accumulation, remarkably inhibit generation of nitrous oxide (N2O), reduce dependence on an external organic carbon source and an electron source, and improve the denitrification efficiency. And a new technical approach is provided for improving the deep denitrification efficiency under the low-carbon condition.

The invention relates to an iron oxide / bismuth vanadate composite photocatalytic material as well as a preparation method and application thereof in photocatalytic degradation of organic pollutants. The preparation method comprises the following steps: preparing a bismuth vanadate precursor by taking bismuth nitrate pentahydrate and ammonium metavanadate as raw materials; preparing bismuth vanadate by taking the bismuth vanadate precursor as a raw material and adopting a hydrothermal method; the bismuth vanadate is used as a substrate material, ferric chloride hexahydrate is used as an iron source, potassium iodate is used as an electron acceptor, a photodeposition method is adopted, iron oxide formed after Fe < 3 + > oxidation is selectively deposited on a {110} surface of the bismuth vanadate, and the iron oxide / bismuth vanadate composite photocatalytic material is obtained. The preparation method is simple and convenient to operate. The prepared iron oxide / bismuth vanadate composite photocatalytic material has proper forbidden bandwidth and good charge separation performance, effectively improves the photocatalytic activity, has a more excellent carbamazepine degradation effect compared with pure-phase BiVO4, and has a great application prospect in the aspect of degradation of antibiotic wastewater.

The invention relates to an electrocatalysis-biological fermentation coupling system as well as a construction method and application thereof. The electrocatalysis-biological fermentation coupling system comprises an electrocatalysis unit and a fermentation unit; the electro-catalysis unit is used for electrolyzing water to generate H2 and O2; the fermentation unit is used for producing succinic acid through fermentation by taking CO2 as a carbon source and taking H2 and O2 generated by the electro-catalysis unit as an electron donor and an electron acceptor; the fermentation unit comprises S.ovaata bacteria, E.coli bacteria and a culture medium, the S.ovaata bacteria are used for synthesizing acetate by taking CO2 as a carbon source, and the E.coli bacteria are used for synthesizing succinic acid by utilizing the acetate. According to the invention, an electro-catalysis-biological fermentation coupling system with a specific structure is designed, the system can stably operate for 5 days, and the average yield of succinic acid is as high as 30.70 mg.L <-1 >. Day <-1 >.

A compound having a structure of Formula I,is provided. In Formula I, Z1 to Z16 are each CR or N; three consecutive ones of Z1 to Z16 within the same ring cannot be N; each R is independently a hydrogen or a substituent selected from a variety of substituents; at least one R includes and electron donor substituent; at least one R includes an electron acceptor substituent; and any two Rs on the same ring can be joined or fused together to form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

The invention discloses a self-early-warning and self-repairing integrated coating, and particularly relates to the field of coatings, the self-early-warning and self-repairing integrated coating comprises a capsule D, a capsule A and a PDMS matrix which are mixed according to the mass ratio of 1: 1: 10; the capsule D is obtained by mixing an electron donor D compound solution, an HDI solution and a continuous phase solution, emulsifying, performing ice bath, preserving heat, filtering, washing and drying, and the electron donor D is a carbazole molecule or a dibenzothiophene molecule; the capsule A is obtained by mixing an electron acceptor A compound solution, an HDI solution and a continuous phase solution, emulsifying, performing ice bath, preserving heat, filtering, washing and drying, and the electron acceptor A is a 1, 2, 4, 5-tetracyanobenzene molecule; the continuous phase solution is a mixed aqueous solution of urea, resorcinol, ammonium chloride and sodium dodecyl benzene sulfonate, the compatibility problem of self-early warning and self-repairing factors is solved, light and color response factors with the characteristics of timeliness, accuracy and universality are developed, timely early warning is achieved when the coating is damaged, misjudgment is not likely to happen, and the self-repairing effect is achieved while self-early warning is conducted.

The invention discloses a hole transport layer-free perovskite solar cell based on a CuSeCN additive and a preparation method, the perovskite solar cell comprises a transparent conductive substrate layer, a perovskite light absorption layer, an electron transport layer, an interface buffer layer and an electrode layer from bottom to top, and the perovskite light absorption layer contains the CuSeCN additive. According to the invention, a CuSeCN additive is adopted to carry out effective p-type doping on a lower interface perovskite thin film, SeCN-in CuSeCN and uncoordinated Pb < 2 + > form a strong bond action at a crystal boundary of the perovskite thin film, so that the SeCN-and the uncoordinated Pb < 2 + > serve as a perovskite electron acceptor, and the conversion of bottom perovskite from an n-type conductivity to a p-type conductivity is realized. Meanwhile, the introduction of CuSeCN effectively regulates and controls the crystallization kinetic process of perovskite, increases the grain size of perovskite, releases the tensile stress of perovskite crystal lattices at the bottom, forms a charge transfer interface with low defect state density, realizes an efficient and stable perovskite cell without a hole transport layer, and greatly promotes the industrialization process of the perovskite solar cell.