Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Controlled Crystallization of Hybrid Perovskite Films from Solution Using Prepared Crystal Centers

Vyacheslav A. Moshnikov
ORCID logo ,
Ekaterina Muratova
* ,
Andrey Aleshin
,
Alexandr Maksimov
,
Gregory Nenashev
,
Igor Vrublevsky
,
Nikita Lushpa
,
Alexandr Tuchkovsky
,
Anton Zhilenkov
ORCID logo ,
Olga Kichigina
*
Version 1 : Received: 11 March 2024 / Approved: 14 March 2024 / Online: 17 March 2024 (15:58:51 CET)

A peer-reviewed article of this Preprint also exists.

Moshnikov, V.; Muratova, E.; Aleshin, A.; Maksimov, A.; Nenashev, G.; Vrublevsky, I.; Lushpa, N.; Tuchkovsky, A.; Zhilenkov, A.; Kichigina, O. Controlled Crystallization of Hybrid Perovskite Films from Solution Using Prepared Crystal Centers. Crystals 2024, 14, 376. Moshnikov, V.; Muratova, E.; Aleshin, A.; Maksimov, A.; Nenashev, G.; Vrublevsky, I.; Lushpa, N.; Tuchkovsky, A.; Zhilenkov, A.; Kichigina, O. Controlled Crystallization of Hybrid Perovskite Films from Solution Using Prepared Crystal Centers. Crystals 2024, 14, 376.

Abstract

: The crystallization conditions from the solution play an important role in determining the mor-phology, phase composition, and photovoltaic properties of perovskite films. Post-processing of the obtained films can have a crucial role in increasing the grain size of perovskite and enhancing its crystallinity. It has been shown that the formation of crystal nuclei can be utilized to accelerate crystallization. In this case, crystallization occurs through the growth of seed crystals created in the solution, enabling the formation of relatively large crystals. For the deposition of CH3NH3PbI3 hybrid halide perovskite films from a solution of the perovskite in dimethylformamide the spin coating technique was employed. Pre-crystallization was achieved by annealing the films at a temperature of 100 or 110 °C. The dissolution process involved adding a drop of dimethylformamide onto the substrate surface and allowing it to partially dissolve the perovskite film. Subsequently, residual solvent was removed through spin coating. The mor-phological analysis of the perovskite film surface after recrystallization at temperatures ranging from 80 to 130 °C was performed. The infrared transmission spectra of the obtained perovskite films were investigated, and their light absorption characteristics were studied through transmission spectra. The perovskite structure in the obtained films was confirmed by the peaks observed in the X-ray diffraction patterns.

Keywords

hybrid halide perovskite; crystallization; grain structure; crystal nucleation; crystal growth

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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