Alpha-FAPbI3 powder, preparation method thereof and perovskite solar cell

The invention discloses alpha-FAPbI3 powder, a preparation method thereof and a perovskite solar cell. The method for preparing the alpha-FAPbI3 powder comprises the steps: (1) mixing lead iodide, iodoformamidine and a solvent to obtain a mixed solution; (2) mixing the mixed solution with an anti-so...

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Bibliographic Details
Main Authors FAN XINZHAO, LI JIAFENG
Format Patent
LanguageChinese
English
Published 23.07.2021
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
SEMICONDUCTOR DEVICES
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Summary:The invention discloses alpha-FAPbI3 powder, a preparation method thereof and a perovskite solar cell. The method for preparing the alpha-FAPbI3 powder comprises the steps: (1) mixing lead iodide, iodoformamidine and a solvent to obtain a mixed solution; (2) mixing the mixed solution with an anti-solvent, and carrying out solid-liquid separation to obtain a filter cake; and (3) heating the filter cake at the temperature of 110 DEG C to 150 DEG C to obtain the alpha-FAPbI3 powder. Therefore, according to the preparation method, high-purity reaction raw materials are not used, so that the cost is reduced; FAPbI3 crystals are separated out by adopting an anti-solvent at room temperature, and the reaction conditions are mild; use of a lot of toxic solvents is avoided, and the method is suitable for green and safe production; and moreover, the yield of the alpha-FAPbI3 powder is improved. Therefore, when the alpha-FAPbI3 powder obtained by the method is used for preparing the perovskite cell, the production cost c
Bibliography:Application Number: CN202110252152