310 results about "Conjugated system" patented technology

The invention belongs to the technical field of organic synthesis, and particularly discloses an ammonia aromatic alkene modified near-infrared BODIPY fluorescent probe as well as a preparation method and application thereof.The near-infrared BODIPY fluorescent probe is obtained by adopting 6-(dimethylamino) nicotinic aldehyde to directionally modify the alpha position of BODIPY and constructing an expanded conjugated system through Knoevenagel condensation. Wherein dimethylamino provides a strong electron donating effect, a molecular structure is twisted into a non-planar configuration due to steric hindrance of a pyridine ring, pi-pi accumulation is reduced, and an ACQ effect is inhibited. According to the structural modification strategy, significant red shift of absorption / emission wavelength is realized by expanding a molecular pi-conjugated skeleton, and meanwhile, the stability of the BODIPY core and the quantum yield are effectively enhanced. The probe molecule can specifically recognize the diphenylalanine dipeptide structural unit by utilizing the synergistic coordination effect of the 2-aminopyridine derivative and the BODIPY mother nucleus, so that the selective detection of the Alzheimer's disease biomarker Abeta42 is realized, and a novel optical detection tool is provided for the early molecular diagnosis and targeted therapy of AD (Alzheimer's disease).

The invention discloses a self-assembled monomolecular material based on pyrene-carbazole diphosphate and a preparation method and application thereof, and belongs to the technical field of perovskite solar cells. According to the material, two carbazole units and a pyrene core are in conjugate connection to form a large conjugate plane structure, and the material has the following advantages: 1) a rigid molecular skeleton and an expanded conjugate system significantly improve thermal stability and chemical stability; 2) the conjugate plane of pyrene enhances intermolecular pi-pi accumulation, and promotes hole extraction and transmission; and 3) energy level matching is accurately regulated and controlled, a compact interface layer is formed, and electron-hole recombination is inhibited. When the hole transport layer is applied to the trans-perovskite solar cell, the photoelectric conversion efficiency and the long-term stability can be improved at the same time, and the hole transport layer has a good industrialization prospect.

The preparation method comprises the following steps: mixing a polyurethane prepolymer and a modified filler, adding the mixture into a twin-screw extruder, carrying out extrusion granulation to prepare the antistatic master batch, and carrying out melt extrusion on the polyurethane prepolymer and the modified filler in the melt extrusion process of the polyurethane prepolymer and the modified filler to prepare the antistatic master batch. When the polyurethane prepolymer reacts with hydroxyl on the surface of the modified filler, the modified filler can be uniformly dispersed among polyurethane molecular chain segments, the surface of the modified filler contains polyaniline chain segments and quaternary ammonium salt structures, a large number of conjugated pi electrons are contained on the main chain of polyaniline molecules, and the conjugated pi electrons can be dispersed among the polyurethane molecular chain segments. Pi electrons can freely move in a conjugated system to generate a delocalization effect, so that polyaniline has conductivity, a conductive path is further formed in the material, quaternary ammonium salt can neutralize charges carried by the polyurethane material, an antistatic effect is further achieved, and due to the addition of a polysiloxane chain segment, the antistatic property of the polyurethane material is improved. And the antistatic effect of the material is not reduced in a high-temperature environment.

The invention provides a preparation method and application of a sulfide electrolyte and a composite solid electrolyte. The invention provides a liquid-phase synthetic sulfide electrolyte, and a composite solid electrolyte is prepared on the basis of the electrolyte, and has good chemical stability, interface conductivity and thermal stability during application; the conductive polymer material can form polymer fibers under the action of high-speed shearing force, so that the processability of the electrolyte can be effectively improved; after the film is formed, a fiber net structure can be formed, a polymerization state with a non-localized pi-electron conjugated system is generated, and the transmission rate of electrons and ions can be effectively improved; by introducing the conductive polymer material, the stability of the electrolyte membrane can be effectively improved, and good conductivity and material stability can still be kept at high temperature; surfactants are introduced to the two sides of the solid electrolyte membrane, the affinity to the positive electrode material and the affinity to the negative electrode material are improved through acting force, and then the conductivity and the surface resistance are improved.

The invention relates to the technical field of polymer dye synthesis, in particular to a polymer coloring agent based on a binary acid chromophoric monomer, a color master batch, a fiber and a preparation method of the polymer coloring agent. The structural formula of the diacid chromophoric monomer is as follows: # imgabs0. The chromophoric monomer has extremely high thermal stability, and can maintain the chemical structural integrity and chromophoric performance in a high-temperature environment (250 DEG C). The heat-resistant characteristic is mainly derived from a highly stable aromatic skeleton formed by a parent nucleus through an expanded conjugated system and a rigid plane structure, and heat vibration energy is effectively dispersed; in addition, a thermal stable group (an all-carbon skeleton) is introduced through side chain modification to form a steric hindrance effect, and molecular movement at high temperature is inhibited. Due to the unique heat resistance of the monomer, the monomer can be completely matched with a high-temperature processing window (240-300 DEG C) of a polyester melt polymerization process, and a polymer-dye composite system with a stable structure is constructed through covalent bonding in ester exchange and polycondensation processes.

The invention discloses a PT-based azo conjugated polymer for a battery positive electrode material and a preparation method of the PT-based azo conjugated polymer, and the PT-based azo conjugated polymer is an extended conjugated system formed by azo connection and contains rich carbonyl (C = O) and azo (N = N) sites. According to the preparation method of the PT-based azo conjugated polymer, nitration of a conjugated precursor PT and subsequent nitro polymerization reaction are utilized to obtain the PT-based azo polymer PTAP, the PT-based azo polymer PTAP has high-density oxidation-reduction active sites, the electronic conductivity is greatly enhanced and reaches 4.26 * 10 <-3 > S / m, and the PT-based azo polymer PTAP also has excellent solubility resistance and rate capability.

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).

The invention discloses a preparation method and application of a thienyl metal organic framework material, a 1, 2, 4, 5-tetra (5-bromothiophene) benzene intermediate is synthesized through a Steyler reaction and an NBS bromination reaction, the intermediate reacts with 4-methoxycarbonyl phenylboronic acid to obtain long-size 1, 2, 4, 5-tetra (2-(5-(4-carboxyphenyl)) thienyl) benzene with a large conjugated system, and the long-size 1, 2, 4, 5-tetra (2-(5-(4-carboxyphenyl)) thienyl) benzene has a large conjugated system. And self-assembling with Zr < 4 + > by adopting a solvothermal method to obtain the MOF with a stable structure and an excellent fluorescent property. The prepared fluorescence-enhanced metal organic framework material has excellent chemical and hydrothermal stability, the quenching rate and recognition sensitivity of the fluorescence-enhanced metal organic framework material to Fe < 3 + > and aromatic nitro compounds are kept at 95% and above 104 orders of magnitude, and the prepared MOF has good application in selective fluorescence detection of Fe < 3 + > and aromatic nitro compounds.

The invention relates to the technical field of nano medicine, in particular to iron gambogic acid adriamycin nano particles, a preparation method and application. Gambogic acid, doxorubicin hydrochloride and an iron-containing compound are matched, carbonyl oxygen and hydroxyl in the gambogic acid and Fe < 3 + > form coordinate bonds, carbonyl and amino in the doxorubicin hydrochloride and a conjugated system in a benzene ring are combined with Fe < 3 + > through covalent bonds and pi-pi accumulation, a core-shell structure is formed, and the iron gambogic acid doxorubicin nano-particles are obtained. The particle size of the iron gambogic acid adriamycin nano-particles ranges from 2 nm to 10 nm. The iron gambogic acid adriamycin nano-particles have excellent multi-enzyme activity, autophagy amplification is effectively achieved, traditional chemotherapy drug resistance caused by autophagy is overcome, and the glioma chemotherapy effect is improved.

The invention belongs to the technical field of organic electroluminescence, and discloses an organic metal iridium complex, a preparation method and an organic electroluminescence device containing the organic metal iridium complex. The structure of the organic metal iridium complex is as shown in formula I. According to the organic metal iridium complex provided by the invention, a nitrogen-containing heterocyclic functional group is introduced to a pyridine ring, and meanwhile, some electron withdrawing groups such as cyano or methyl and the like are added, so that the molecular configuration is changed, a conjugated system is enlarged, and the electrochemical characteristics of a compound are adjusted; after the obtained organic compound is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.

The invention provides a photosensitive resin composition containing an alkynyl anthracene photosensitizer and application of the photosensitive resin composition. A conjugated alkynyl functional group is introduced to the 9 and / or 10 position of a structural main body anthracene ring of the photosensitizer. Compared with the existing DBA photosensitizer, the introduction of alkynyl expands the size of a conjugated system, lengthens the maximum absorption wavelength of molecules, improves the initiation efficiency, is especially suitable for a photo-initiation system under the 405nm illumination condition, reduces the exposure energy, and also ensures good solubility and compatibility of a formula; besides, compared with an existing DBA photosensitizer, small molecule fragments cannot be generated and cannot be migrated to a polyethylene film, and when an electroplating procedure is carried out after exposure and development, the fragments cannot be separated out to pollute electroplating liquid, so that the undesirable phenomena of short circuit, open circuit and the like of an anti-corrosion pattern are avoided, and the yield of a product is remarkably improved; the method can be widely applied to the photo-curing fields of dry films, paints, coatings, printing ink, forming materials and the like.

The invention belongs to the field of photocatalytic preparation of hydrogen peroxide, and relates to a porphyrin-based covalent organic framework material (IM) as well as a preparation method and application thereof. The material is synthesized through a Schiff base reaction of tetraaldehyde phenyl porphyrin and 2, 5-diamino-1, 4-benzenediol dihydrochloride, an imine bond connected covalent organic framework is formed, interlayer hydroxyl strengthens the structural orderliness and stability through hydrogen-bond interaction, a porphyrin large-pi conjugated system drives efficient transmission of electrons in the framework, and the separation efficiency of photon-generated carriers is improved. The obtained IM photocatalyst is good in crystallinity, a photocatalytic hydrogen peroxide production experiment shows that the hydrogen peroxide yield reaches 1470.24 [mu] mol.g <-1 > after IM reacts for 4 h under irradiation of an ultraviolet lamp, the yield is stably increased, and high catalytic activity and stability are shown. The method utilizes light energy for green synthesis of hydrogen peroxide under mild conditions, and provides an efficient and safe new strategy for hydrogen peroxide production.

The invention belongs to the technical field of adsorption materials, and particularly relates to a pyridine-polyether sulfone organic polymer as well as a preparation method and application thereof. The pyridine-polyether sulfone organic polymer has a structure as shown in a formula 1, R is a carboxyl pyridine group, and n is an integer from 30 to 100. According to the pyridine-polyether sulfone organic polymer disclosed by the invention, an organic ligand of acylated pyridine is embedded into a macromolecular skeleton of aminated polyether sulfone, so that the molecular weight and the structural stability of single pyridine are improved. Meanwhile, a hyperconjugated system formed by a pyridine group in acylated pyridine and a benzene ring in aminated polyether sulfone enhances the coordination stability between the pyridine-polyether sulfone organic polymer and heavy metal ions, and improves the adsorption efficiency of the pyridine-polyether sulfone organic polymer to the heavy metal ions. And # imgabs0 #.

The invention discloses a lipid droplet specific fluorescent probe as well as a preparation method and application thereof, and relates to the technical field of biological medicines. The invention provides a structural formula of the lipid droplet specific fluorescent probe, and during preparation, 2-formaldehyde-6-(diethylamino) benzo [B] furan and a malononitrile derivative are used for preparing a fluorescent probe with an extended pi conjugated system under the action of an alkali environment; the fluorescent probe has the characteristic of intramolecular charge transfer (TICT), fluorescence in an aqueous solution is extremely weak, fluorescence in sunflower seed oil is remarkably enhanced, and the fluorescent probe has remarkable Stokes shift, excellent biocompatibility, excellent light stability and high signal-to-noise ratio. Meanwhile, the fluorescent probe shows extremely high sensitivity and signal-to-noise ratio in the aspect of cell lipid droplet imaging, and dynamic and accurate targeted imaging of lipid droplets can be easily realized. Therefore, the fluorescent probe disclosed by the invention is expected to become an alternative scheme for accurate detection of atherosclerosis.

The invention discloses a composite nano sound-sensitive agent as well as a preparation method and application thereof. According to the composite nano sound-sensitive agent provided by the invention, a conjugated system of the narrow-gap semiconductor nano sound-sensitive agent core / the ferric oxide nano functional layer / the surface targeting antibody is constructed, so that multi-mode synergy integrating sonodynamic therapy, ferroptosis induction and immunoregulation is realized. The composite nano sonosensitizer further has precise targeting, efficient sonodynamic effect, ferroptosis enhancement effect and good biocompatibility, a targeting antibody on the surface of the composite nano sonosensitizer can specifically recognize high-expression antigens on the surfaces of tumor cells, and dual-targeting enrichment of a treatment system is achieved in combination with magnetic responsiveness guidance; the coating of the iron oxide nanoparticles obviously enhances the sound-sensitive performance of the inner core of the sound-sensitive agent, improves the ROS generation efficiency, and overcomes the hypoxia limitation of the tumor microenvironment; iron oxide is used as an iron source to continuously release Fe < 2 + >, and cooperates with ROS generated by sonodynamic therapy to induce ferroptosis, so that a ferroptosis enhancing effect is generated.

The invention relates to the technical field of carbon capture, in particular to an antioxidant for a carbon capture composite amine absorbent and a preparation method of the antioxidant, and the antioxidant comprises the following raw materials in parts by weight: 30-60 parts of a sulfur-containing organic compound, 20-40 parts of a metal complex and 10-30 parts of a high-molecular polymer; wherein the sulfur-containing organic compound has a sulfur-carbon bonded conjugated system; the metal complex is a complex formed by transition metal ions and an organic ligand containing nitrogen and oxygen coordination atoms; the high-molecular polymer comprises any one or more of a polyethylene glycol derivative, polyvinylpyrrolidone, polyacrylic acid and polymethyl methacrylate. The antioxidant provided by the invention has excellent oxidation resistance and good stability in the carbon capture composite amine absorbent, does not influence the absorption performance of the composite amine absorbent on carbon dioxide, and can effectively ensure the efficient and stable operation of the carbon capture process.

The invention discloses an arylamine organic compound, a mixture, a composition and an organic electronic device. The arylamine organic compound is an organic conjugated molecule taking an arylamine group as a core, and two fluorene groups are connected through substituted or unsubstituted phenyl, so that effective extension of a pi conjugated system and remarkable optimization of a molecular accumulation mode are realized. The 2 # site of the fluorenyl is connected with arylamine, and the expansion of the fluorenyl is beneficial to the effective extension of a pi conjugated system, so that the excited state energy level of the material is improved, and the material can effectively prevent the reverse transmission of electrons and improve the luminous efficiency when being used as a luminous auxiliary material. Meanwhile, the optimization of the molecular accumulation mode not only facilitates the improvement of the transmission efficiency of current carriers, but also can promote the enhancement of the local rigidity of the material, facilitates the improvement of the thermal stability of the material, and ensures the long-acting operation of the material as a light-emitting auxiliary material in a device.

The invention discloses a carbazole derivative as well as a preparation method and application thereof, a pi conjugated system of carbazole is expanded by introducing a thiophene unit, and (4-(3, 6-di (thiophene-3-yl)-9H-carbazole-9-yl) butyl) phosphonic acid (4PAThCz) is designed. Compared with classical 2PACz, the 4PAThCz shows long-range orderliness and compact pi-pi accumulation, and the molecular dipole moment is enhanced. In addition, the distorted molecular structure of 4PAThCz is helpful to improve solubility and inhibit excessive self-aggregation. The characteristics facilitate hole extraction and transmission, inhibit carrier recombination in a photovoltaic device, and facilitate preparation of an efficient and stable solar cell.

The application relates to a method for enhancing electrochemiluminescence signals by ion-pi interaction, belonging to the fields of electrochemiluminescence and analytical chemistry. 2+ By modifying the working electrode with a conjugated pi system, cation-pi interaction is introduced into the Ru(bpy)3 / triethylamine (TEA) system, efficient enrichment of TEA protonated cations near the electrode is realized, thereby greatly enhancing the electrochemical reaction rate and ECL signal. Further, anion-pi interaction is utilized to realize ECL signal enhancement of the luminol ECL system. In addition, the conjugated pi system is exposed to the outermost boundary of the electrode, so as to provide effective ion-pi interaction for ECL; when the pi system is covered by an alkyl chain, the modified electrode can only exhibit hydrophobic interaction. The method disclosed by the application provides a new strategy for extending ion-pi interaction to all types of ECL systems and constructing a high-sensitivity ECL analysis platform.

The invention discloses a BODIPY derivative, a nano preparation, a corresponding preparation method and application, and the BODIPY derivative is prepared by taking BODIPY as a mother nucleus and adjusting substituent groups and expanding a conjugated system. According to the BODIPY derivative and the nano preparation, the emission wavelength can extend to an NIR-II region, and the BODIPY derivative and the nano preparation can be used for preparing a medicine for inhibiting tumor cell growth or a near-infrared two-region fluorescence imaging agent.

The invention describes a method for manufacturing a sodium-ion battery cell (1), comprising the steps of: providing an anode (A) and a cathode (K), inserting the anode (A) and the cathode (K) into a fluid-tight shell (2), and adding an additional electrolyte (EL-Z) to the shell (2), which contains as an additive a sodium salt (6) having an anion comprising a conjugated system of at least two aromatic compounds. The invention further describes a corresponding electrolyte (EL-Z) for a sodium-ion battery cell (1).

The application discloses a preparation method of transparent conductive adhesive film, and particularly relates to the technical field of conductive adhesive film preparation, which comprises the following specific steps: S1, preparing conductive liquid, which can be prepared by adding 30-50 parts of metal oxide powder and 20-30 parts of polyanion in a π conjugated system conductive polymer into a blender; S2, mixing materials; S3, cleaning a mold; S4, injection molding; S5, secondary conductive film coating; S6, vacuum molding; S7, film cutting molding. The application can fully extrude and mix various conductive materials by injecting the mixed materials into a molding mold, pulling the upper mold of the molding mold upward, adding the other half of the conductive liquid into a centrifugal machine, and placing the secondary transparent conductive film into a vacuum molding machine for film pressing, so that the gaps between the conductive materials are reduced and the compactness is improved, and thus the conductivity is better.

The invention relates to a double-response visual fluorescent probe as well as a construction method and application thereof. According to the present invention, carboxyl activation is performed on rhodamine B, Eu < 3 + > fixes the carboxyl of TAT through bridging and chelation, the Rh B can be combined with EuTAT through the amide reaction due to the steric hindrance effect of the asymmetric amino group to obtain the spirolactam ring so as to obtain the switch fluorescent probe controlled by the spirolactam ring, and the synthesized EuTAT-Rh B compound has characteristics of pH responsiveness and low fluorescence background, according to pH-dependent morphological structure conversion and fluorescence signal conversion caused by conjugate system change induced by vanadate coordination, visual vanadate solution monitoring and synchronous morphological discrimination can be realized in ultraviolet and fluorescence dual channels, and a convenient, simplified and highly sensitive visual platform is provided for visual analysis of vanadate.

The invention provides a plating bath for preparing a titanium-based lead dioxide electrode through electro-deposition and a preparation method of the plating bath, and relates to the field of plating baths, and the plating bath comprises lead p-toluenesulfonate, p-toluenesulfonic acid, fluoride of alkali metal and a dopant. The titanium-based lead dioxide electrode plating bath selects lead p-toluenesulfonate as a main salt and p-toluenesulfonic acid as an acid source, on one hand, the p-toluenesulfonic acid has a weak complexing effect and can form a complex with lead ions in the plating bath, the polarization effect of electro-deposition is increased, the compactness of a lead dioxide electro-deposition layer is improved, and the electrode stability is improved; on the other hand, p-toluenesulfonic acid serving as a hydrophilic organic molecule containing a large-pi conjugated system can be adsorbed on the surface of a lead dioxide crystal, growth of the lead dioxide crystal is regulated and controlled, electrodeposition distortion and internal stress of a lead dioxide active layer are reduced, and the accelerated life of an electrode is prolonged; and meanwhile, the p-toluenesulfonic acid can promote the dominant growth of beta-PbO2 with high catalytic activity, and is beneficial to improving the electrocatalytic activity of the titanium-based lead dioxide electrode.

The invention relates to the technical field of organic photoelectric materials and photovoltaic devices, in particular to a fluorine-substituted benzimidazolyl aniline compound and a synthesis method and application thereof. The structural general formula of the compounds is as shown in a formula I in the specification. The compound is introduced into a perovskite precursor solution as an additive and is used for preparing a perovskite thin film and a trans-perovskite solar cell. According to the compound provided by the invention, synergistic passivation of multi-site defects such as uncoordinated Pb < 2 + > and iodine vacancies is realized through aniline amino and benzimidazole ring N atoms in molecules, and non-radiative recombination is remarkably reduced; the strong electronegativity of fluorine atoms can enhance the electrostatic interaction between molecules and a perovskite Pb-I skeleton, meanwhile, a large conjugated system promotes pi-pi accumulation, and experimental results show that the photoelectric conversion efficiency of a champion device based on the additive can reach 23.3%; .

The invention relates to a preparation method of a high-performance ink material for a writing pen, and belongs to the technical field of ink materials. The high-performance ink material for the writing pen is obtained by self-making the modifier and blending the modifier with the pigment and other auxiliaries, and the modifier connects the benzotriazole with the hydroxypyridine, so that a conjugated system is expanded, the ultraviolet absorption strength of the modifier is higher, the efficiency is higher, and the ink material is more suitable for the writing pen. Ether introduced by pyridine can be used as a hydrogen bond acceptor to form a hydrogen bond with resin in an ink system, so that the ultraviolet light absorber is prevented from being separated out; quaternary ammonium salt cations in the modifier can improve the adhesive force and color fastness of the ink and the friction resistance and water resistance after writing; meanwhile, tert-butyl in the modifier reduces surface tension through steric hindrance, promotes leveling of ink and ink mark uniformity and enhances dispersion stability among resin, auxiliaries and pigment, so that the ink is not prone to layering and deterioration after being placed for a long time.

The application discloses a spiropyran derivative with color and fluorescence dual switch, a photochromic material and a preparation method and application thereof, the spiropyran derivative is a compound with a chemical structure general formula (1); and further discloses a photochromic material prepared by mixing the spiropyran derivative with an epoxy resin and a preparation method thereof. The aromatic fluorescent group is introduced into the side group of the spiropyran material, the conjugated system of the fluorescent group itself is large, and thus the fluorescence emission intensity after the spiropyran is opened is increased. The compound shows good photochromic and photoluminescent effects in organic solvents and solid media; the fluorescent group and the spiropyran material are combined, and a molecular switch material with significant color and fluorescence changes can be prepared; the spiropyran derivative can be used for preparing a two-dimensional optical display device and an intelligent material molecular switch.

The application discloses a kind of tetraphenyl ethylene-chalcone derivative preparation and its application preparation and its application.The structure is as follows: the method includes: 4-(1,2,2-triphenyl ethenyl) acetophenone, aldehyde derivative, sodium hydroxide (provides alkaline condition, pH=8.3~8.5), is placed in anhydrous ethanol, under the condition that heating temperature is 80 DEG C, reflux reaction 12h, after reaction is ended, the functional organic material is separated and purified.The functional organic material synthesized according to the above method has larger conjugated system, and has significant pressure-induced color change characteristics.The functional organic material disclosed in the application has low preparation cost, simple operation, simple method, and the material shows significant pressure-induced color change characteristics, can be applied to pressure-induced color change, luminescent material, printing and dyeing, color printing and anti-counterfeiting technical field.

The invention belongs to the technical field of perovskite solar cells, and particularly discloses a self-assembled monomolecular layer material with binaphthalene as a framework and a preparation method and application of the self-assembled monomolecular layer material. Phosphoric acid serves as an anchoring group, binaphthalene with a large pi conjugated system serves as the molecular framework, and the self-assembled monomolecular layer material is prepared. Intermolecular interaction can be effectively promoted, and molecular arrangement of molecules on an ITO conductive substrate can be regulated and controlled. By adjusting the side chain group of binaphthalene, the energy level of the material can be optimized, the work function of ITO can be improved, and efficient extraction and transmission of interface holes can be promoted. According to the synthesis method, the final product is obtained by oxidizing hydroxyl through phosphorus oxychloride, and the synthesis method has the advantages of being simple, high in yield, low in cost and the like. When the material is applied to a perovskite solar cell, the photoelectric conversion efficiency exceeding 25% can be obtained, and industrial application of the material is facilitated.

Provided is a polyorganosiloxane having a structure represented by formula (1), wherein the number-average molecular weight of the polyorganosiloxane is 10,000-40,000 and the ratio of the number-average molecular weight to the average number (N(A-B)) of bonds A-B contained in one molecule of the polyorganosiloxane, Mn / N(A-B), is 5,000 or greater. (In formula (1), the R moieties each independently represent a group represented by the A-B or a C1-C4 monovalent hydrocarbon group, at least one of the R moieties represents the group represented by A-B, the A represents a divalent organic group bonded to a silicon atom, the B represents three or more conjugated ring structures that form a shared conjugated system, and n is an integer of 1 or larger.)