Open AccessEffect of additive polarity on the stability of organic-inorganic hybrid CH3NH3PbI3 perovskite thin film
Author(s) -
Firmansyah Firmansyah,
Indriana Kartini,
. Sutarno,
. Ruslan
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1763/1/012032
Subject(s) - crystallinity , thin film , perovskite (structure) , materials science , grain size , spin coating , solvent , iodide , chemical engineering , nuclear chemistry , inorganic chemistry , chemistry , organic chemistry , nanotechnology , composite material , engineering
Synthesis of organic-inorganic hybrid CH 3 NH 3 PbI 3 perovskite thin film from Pb(NO 3 ) 2 precursor was carried out by using alcohol with various polarity (isopropanol, 1-butanol and 1-propanol) as the additive. Preparation of CH 3 NH 3 PbI 3 perovskite thin film was conducted by firstly forming Pb(NO 3 ) 2 thin film as the film’s precursor using spin coating method at 2500 rpm for 30 s with DMSO as the main solvent and isopropanol, 1-butanol or 1-propanol as the solvent additives. Pb(NO 3 ) 2 thin film was immersed in methyl ammonium iodide solution for 30 min to produce CH 3 NH 3 PbI 3 perovskite thin film. The effect of solvent additive polarity on the grain size of perovskite film was studied using electron microscope method. Stability of CH 3 NH 3 PbI 3 perovskite thin film was studied by using XRD and SEM. The result showed that increasing polarity of the solvent additives resulted in decreasing on the crystallinity of Pb(NO 3 ) 2 thin film. Pb(NO 3 ) 2 thin film with low crystallinity yielded high purity of CH 3 NH 3 PbI 3 perovskite thin film with grain size up to 2.45 μm and have good stability with 43.09% degradation percentage for 24 h.