ペロブスカイト様構造を有する光吸収材料で作られるフィルムを合成するための方法

Japanese Patent JP7161535

B2

The invention relates to a method for synthesis of films made of light-absorbing material with perovskite-like structure which can be used for fabrication of perovskite solar cells. The method for synthesis of films made of light-absorbing material with perovskite-like structure with a structural formula ACB₃is characterized by sequential deposition of a layer of a reagent C onto a layer of a reagent AB with a thickness determined by stoichiometry of the reaction followed by the immersion of the layers in a liquid or gaseous medium containing reagent B₂where component A states for CH₃NH₃⁺, (NH₂)₂CH⁺, C(NHz)₃⁺, Cs⁺or a mixture thereof, component B states for Cl^-, Br^-, I^-or a mixture thereof, component C states for metals Sn, Pb, Bi, or their melts, oxides, salts. The technical result achieved using the claimed invention is a simple and fast method for fabrication of a layer of light-absorbing organic-inorganic material with a perovskite-like structure which is homogeneous due to the formation of a film of the intermediate phase AB-B₂with improved morphology on the surfaces of a large area due to rapid crystallization, which allows the obtained material to be used in solar cells of large area.

Tarasov, Alexei Borisovich
Berik, Nikolai Andreevich
Goodilin, Eugene Alekseevich
Petrov, Andrei Andreevich
Grishko, Alexei Yurievich

JP2020530414A

October 26, 2022

August 06, 2018

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Joint Stock Company Krasnoyarsk Hydropower Plant (JSC Krasnoyarsk HPP)

H01L51/44; H01L51/48

CN104250723A
WO2016094966A1

Yingying He et al.,"Using elemental Pb surface as a precursor to fabricate large area CH3NH3PbI3 perovskite solar cells",Applied Surface Science,2016年,Vol.389, pp.540-546

Kichi Toshio Kawa
Hiroshi Ichikawa

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