Synthesis and optimization of properties of thin films of FAx(MA1-X)PbI3 grown by spin coating with perovskite structure to be used as active layer in hybrid solar cells
Published 2020-01-03
Keywords
- chemical composition,
- methylammonium cation,
- formamidinium cation,
- antisolvent treatment
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Abstract
This work reports results concerning the effect that the substitution of the methylammonium cation by the formamidinium cation causes on the properties of FAx(MA1-x)PbI3 films synthesized by spin coating in one step. For that, it was conducted a study to establish the influence of the composition of the FAx(MA1-x)PbI3 films on their optical, structural and morphological properties, determined through spectral transmittance, atomic force microscopy, and x-ray diffraction measurements. Correlating parameters of synthesis with results of the study of properties performed, it was able to get conditions to grow FAx(MA1-x)PbI3 films with an improved optical gap, microstructure and morphology, what allows to think that this compound is suitable to be used as the active layer in hybrid solar cells.
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