▎ 摘　　要

NOVELTY - Preparing perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film comprises e.g. adding stirring magnet, installing reflux device, adding trinonylphenyl phosphite and tin (II) chloride in the three-neck round bottom flask, adding concentrated hydrochloric acid, reacting in an oil bath, placing natural graphite and sodium nitrate into a large beaker, slowly adding concentrated sulfuric acid to obtain a black solution, diluting the brown solution with warm water, and using hydrogen peroxide to remove residual high potassium manganate to obtain a bright yellow solution, and uniformly coating the toluene dispersion of perovskite quantum dots on the 4-aminophenylporphyrin, and surface of the graphene oxide composite thermal conductivity film is allowed to dry naturally, and the resulting product is the perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film. USE - The method is useful for preparing perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film, which is used in heat dissipation and cooling of electronic components under strong ultraviolet light conditions. ADVANTAGE - The perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film: has excellent electrical conductivity and thermal conductivity, good film forming effect, and the service life and thermal conductivity are relatively stable under strong ultraviolet light conditions. DETAILED DESCRIPTION - Preparing perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film comprises (1) adding stirring magnet, installing reflux device, adding trinonylphenyl phosphite and tin (II) chloride in the three-neck round bottom flask, adding concentrated hydrochloric acid, reacting in an oil bath at a certain temperature for a period of time, using a rubber dropper to absorb half of the liquid, filtering with a conical suction filter funnel, placing the filter paper into a small beaker, adding triethylamine, adding a small amount of dichloromethane, adding magnesium sulfate, drying, washing the filter cake with distilled water, dissolving the filter cake with a sodium hydroxide solution with a concentration of 5%, adjusting its pH to be alkaline, filtering it with a Buchner funnel, rinsing it with distilled water, placing the filter cake on a watch glass and dry it naturally, wrapping the filter cake with filter paper, and using dichloromethane as a solvent for Soxhlet extraction to colorless, and vacuum-drying to obtain 4-aminophenylporphyrin solid, (2) placing natural graphite and sodium nitrate into a large beaker, slowly adding a certain amount of concentrated sulfuric acid to obtain a black solution, continue stirring in an ice bath for a period of time, slowly adding Potassium permanganate to obtain a dark green solution, stirring in an ice bath for a period of time, slowly adding distilled water to obtain a brown solution, diluting the brown solution with a certain amount of warm water, and using hydrogen peroxide to remove residual high potassium manganate to obtain a bright yellow solution, and finally filtering the solution, and washing the resultant with dilute hydrochloric acid and distilled water respectively until the solution is neutral, drying and grinding to obtain graphite oxide, centrifugally washing the product with hydrochloric acid and distilled water until it is nearly neutral, and then the product is dialyzed to neutrality, and the solution is allowed to stand, (4) compounding of 4-aminophenylporphyrin and graphene oxide, adding 4-aminophenylporphyrin to graphene oxide suspension, stirring magnetically until the dissolution is complete, and then mixing the solution and dispersed in an ultrasonic disperser to obtain a uniform dispersion of 4-aminophenylporphyrin and graphene oxide, using a pipette gun to measure a certain volume of the dispersion, and using vacuum filtration to obtain a composite thermally conductive film on the PVDF membrane, placing into an oven and drying at a constant temperature for a period of time at a certain temperature, and peeling off the obtained 4-aminophenylporphyrin/graphene oxide film from the filter membrane, and (4) preparing perovskite quantum dots, cesium lead bromide quantum dots, cesium lead iodide quantum dots and cesium lead chloride quantum dots, and the prepared perovskite quantum dots are dispersed in a certain amount of toluene to obtain the toluene dispersion of perovskite quantum dots, and (5) uniformly coating the toluene dispersion of perovskite quantum dots on the 4-aminophenylporphyrin, and surface of the graphene oxide composite thermal conductivity film is allowed to dry naturally, and the resulting product is the perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film. An INDEPENDENT CLAIM is also included for a perovskite quantum dot/4-aminophenylporphyrin/graphene oxide high thermal conductivity composite film.