METHOD OF OBTAINING LIGHT-ABSORBING MATERIAL WITH PEROVSKITE STRUCTURE Russian patent published in 2018 - IPC C09C1/00 H01L51/42 H01L51/44 

FIELD: technological processes.

SUBSTANCE: invention relates to a process for preparing an organo-inorganic light-absorbing material with a perovskite structure, which can be used in manufacturing "perovskite" solar cells. Method is described for producing a light-absorbing material with a perovskite structure with the structural formula of ADB₃, where cation A is CH₃NH₃⁺, (NH₂)₂CH⁺, C(NH₂)₃⁺, Cs⁺ or a mixture thereof, anion B is Cl^-, Br^-, I^- or a mixture thereof, and component D is Sn, Pb or Bi or a mixture thereof, which assumes mixing the reagent of composition AB – nB₂ and a reagent containing D, where Sn, Pb or Bi as a metal or in the composition of alloys, oxides, salts is used as the reagent containing D, herewith reagent D is applied with the reagent of composition AB – nB₂, with the subsequent removal of excessive reagents, and in the reagent of composition AB – nB₂, n is greater than or equal to 1, and component B₂ is Cl₂, Br₂, I₂ or a mixture thereof.

EFFECT: method for obtaining a light-absorbing organo-inorganic material with a perovskite structure without the use of a solvent has been developed.

8 cl, 3 ex