INFLUENCE OF THE SOLVENT AND THE RATIO OF STARTING REAGENTS ON THE PROPERTIES OF ORGANIC-INORGANIC PEROVSKITE MAPbI3

• Date: 2022
• Author Affiliations: Pavlo Torchyniuk — V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Palladina ave., 32/34, Kyiv, 03142, Ukraine mob. phone. [phone]; Oleg V'yunov — Candidate of Chemical Sciences, Senior Researcher, V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Palladina ave., 32/34, Kyiv, 03142,; Viktor Vlasyuk — Researcher, V. E. Lashkarev Institute of Semiconductor Physics of National Academy of Sciences of Ukraine, pr. Nauki 41, Kyiv, 03028; Vitaliy Kostylyov — Doctor of Physical and Mathematical Sciences, Senior Researcher, V. E. Lashkarev Institute of Semiconductor Physics of National Academy of Sciences of Ukraine, pr. Nauki 41, Kyiv, 03028; Anatolii Belous — Doctor of Chemical Sciences, Professor, Academician of NAS of Ukraine V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine, Palladina ave., 32/34, Kyiv, 03142,
• Keywords: keywords
• Main Authors: Torchyniuk, Pavlo, V'yunov, Oleg, Vlasyuk, Viktor, Kostylyov, Vitaliy, Belous, Anatolii
• Format: Article
• Language: English
• Published: V.I.Vernadsky Institute of General and Inorganic Chemistry 2022
• Online Access: https://ucj.org.ua/index.php/journal/article/view/434
• Journal Title: Ukrainian Chemistry Journal

The peculiarities of formation and properties of organiс-inorganic MAPbI3 perovskite films, obtained from solutions with different ratios of starting reagents (PbI2:MAI = 1:1,1:2, and 1:3), in the DMF and DMSO solvents, studied. As the PbI2:MAI ratio increases, the temperature of the formation of a single-phase MAPbI3 perovskite film also increases. The slight changes in the structural and electrophysical characteristics for perovskite films obtained at the  different ratios of PbI2:MAI in DMF and DMSO were found. These changes are related to the solvent that is included in the crystalline structure of perovskite. In the same ratios of starting reagents, DMF is included in the structure of perovskite in a greater amount than DMSO.