Ultrasonic preparation method of blue-light inorganic bromine-lead-cesium perovskite nanoparticles
A nanoparticle, bromine, lead, and cesium technology, which is applied in the field of perovskite luminescent nanoparticle preparation, can solve the problems of difficult large-scale synthesis and high-temperature heating, and achieve the effects of no high-temperature heating, uniform size, and simple synthesis steps
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[0027] An embodiment of the present invention provides a method for ultrasonically preparing blue-light inorganic bromine-lead-cesium perovskite nanoparticles, including: S1, ultrasonically dissolving cesium acetate and lead acetate in compounds of oleic acid, oleylamine and 1-octadecene , to obtain a precursor solution; S2, adding benzoyl bromide to the precursor solution, and ultrasonically reacting; S3, quenching the reaction in an ice bath, adding ethyl acetate, and centrifuging to obtain bromine-lead-cesium perovskite nanoparticles.
[0028] The method prepares high-efficiency luminescent blue-light inorganic perovskite nanoparticles through ultrasonic synthesis, including: adding cesium acetate and lead acetate to ligands oleic acid and oleylamine, and non-coordinating solvent 1-octadecene; performing ultrasonic to make the solid powder completely Dissolve to form a precursor solution; after adding benzoyl bromide, perform ultrasonication; after ultrasonication, take out ...
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