FIELD: technological processes.
SUBSTANCE: use to produce films of organic-inorganic compounds with a perovskite structure. Essence of the invention lies in the fact that the method for producing coarse-grain perovskite films with the chemical formula ABX3 characterized by the fact that the melt AX – nX2 is applied to the surface of the precursor of component B, is distributed over this surface by a plate containing the relief, and is maintained so until the precursor of component B is completely converted to the perovskite of ABX3, after which the excess melt of AX – nX2 is removed with a solvent, where n≥1, A=CH3NH3+, (NH2)2CH+, C(NH2)3+, Cs+, B=Sn, Pb, Bi, X=Cl, Br, I.
EFFECT: provided possibility of increasing the continuity of the coating and enlarging the average dimensions of the perovskite grains.
1 cl, 1 dwg
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