Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Acceleration of Hybrid Perovskite Film Crystallization From Solution Through the Nuclei Formation

Vyacheslav Moshnikov
ORCID logo ,
Ekaterina Muratova
* ,
Andrey Aleshin
,
Alexander Maximov
,
Grigorii Nenashev
,
Igor Vrublevsky
ORCID logo ,
Nikita Lushpa
,
Alexandr Tuchkovsky
Version 1 : Received: 31 August 2023 / Approved: 31 August 2023 / Online: 4 September 2023 (03:47:51 CEST)

How to cite: Moshnikov, V.; Muratova, E.; Aleshin, A.; Maximov, A.; Nenashev, G.; Vrublevsky, I.; Lushpa, N.; Tuchkovsky, A. Acceleration of Hybrid Perovskite Film Crystallization From Solution Through the Nuclei Formation. Preprints 2023, 2023090096. https://doi.org/10.20944/preprints202309.0096.v1 Moshnikov, V.; Muratova, E.; Aleshin, A.; Maximov, A.; Nenashev, G.; Vrublevsky, I.; Lushpa, N.; Tuchkovsky, A. Acceleration of Hybrid Perovskite Film Crystallization From Solution Through the Nuclei Formation. Preprints 2023, 2023090096. https://doi.org/10.20944/preprints202309.0096.v1

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 echnique was employed. Pre-crystallization was achieved by heating 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 dis-solve the perovskite for 30-40 seconds. Subsequently, residual solvent was removed through spin coating. The recrystallization process was carried out by heating films at the temperature range of 80 to 130 °C. The morphological analysis of the perovskite film surfaces after recrystallization at tem-peratures 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 con-firmed by the peaks observed in the X-ray diffraction patterns.

Keywords

Hybrid halide perovskites; crystallization; grain structure; crystal nucleation; crystal growth

Subject

Engineering, Electrical and Electronic Engineering

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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