Competing growth mechanisms during the formation of a MAPbI3 polycrystalline film
https://doi.org/10.34680/2076-8052.2023.3(132).365-373
Abstract
The results of studying thin polycrystalline perovskite layers of CH3NH3PbI3 (MAPbI3) are presented. The resulting MAPbI3 layers demonstrate a characteristic absorption spectrum, optical band gap, and photoresponse to irradiation in the visible region of the spectrum. Two crystallization mechanisms have been found in the MAPbI3 layer during heating, which ensure the formation of a film of crystallites with characteristic sizes of 100–200 nm and long dendritic structures with a length of more than 50 μm. A space-charge-limited current regime has been registered, as well as hysteresis due to ion migration.
About the Authors
A. A. Ryabko
The Ioffe Physical-Technical Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Saint Petersburg.
M. K. Ovezov
The Ioffe Physical-Technical Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Saint Petersburg.
A. I. Maksimov
Saint Petersburg Electrotechnical University "LETI"
Russian Federation
Russian Federation
Saint Petersburg.
A. N. Aleshin
The Ioffe Physical-Technical Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Saint Petersburg.
V. A. Moshnikov
Saint Petersburg Electrotechnical University "LETI"
Russian Federation
Russian Federation
Saint Petersburg.
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Review
For citations:
Ryabko A.A., Ovezov M.K., Maksimov A.I., Aleshin A.N., Moshnikov V.A. Competing growth mechanisms during the formation of a MAPbI3 polycrystalline film. Title in english. 2023;(3(132)):365-373. (In Russ.) https://doi.org/10.34680/2076-8052.2023.3(132).365-373
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