A Stepwise Synthesis of Methylammonium Lead Bromide (MAPbBr3) Perovskite Using Lead Acetate Trihydrate as a Precursor

Yudi Harsono; Djulia Onggo

Yudi Harsono Master Program in Chemistry Teaching, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl Ganesha 10, Bandung 40132, Indonesia
Djulia Onggo Master Program in Chemistry Teaching, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl Ganesha 10, Bandung 40132, Indonesia

Keywords: acetate, bromide, lead, mapbbr3, methylammonium, perovskite, synthesis

Abstract

Methylammonium lead bromide (MAPbBr3) has been successfully synthesized in an aqueous solution using lead acetate trihydrate as a precursor. The synthesis process was conducted in a stepwise manner, first lead acetate was combined with hydrogen bromide to produce lead bromide. Subsequently, methylammonium bromide, which was obtained from the reaction of methylamine and hydrogen bromide was added to the lead bromide to form methylammonium lead bromide. The red-orange solid product has a chemical formula of CH3NH3PbBr3 based on SEM-EDS (scanning electron microscopy with energy dispersive spectroscopy), AAS (atomic absorption spectroscopy), and argentometric titration. The perovskite structure of the product has been confirmed by PXRD (powder X-ray diffraction) measurements and the thermal stability of the product was performed by TGA (thermal gravimetric analysis). The yield of each reaction step was found to be approximately 80%.

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