Specifications
Synonyms
Methylamine hydroiodide
Chemical name
Methylammonium iodide
Physical appearance
White, crystalline solid
Purification method
Recrystallisation (ethanol)
Purity
>99.9% (as measured by elemental analysis)
Molecular weight
158.97 g/mol
Recommended solvents for perovskite synthesis
DMF, DMSO
Applications
Methylammonium iodide (MAI), also referred to as methylamine hydroiodide, is a precursor for the synthesis of organic-inorganic hybrid perovskites for use in FETs, LEDs and PVs.
Due to the high purity of the methylammonium iodide (99.99%), it should be noted that its solubility is reduced within dimethyl formamide and dimethyl sulfoxide. This reduced solubility is due to the removal of trace amounts of residual hydroiodic acid (HI) used during the synthesis and purification of the material. This can potentially have an impact upon the performance of solar cells leading to a reduction in maximum power conversion efficiency achievable. Adding fixed concentrations of hydroiodic acid to perovskite solutions can allow for the improvement of device metrics. Using high-purity precursor materials allows for accurate addition of amounts of hydroiodic acid giving higher reproducibility to experiments. It is recommended that between 1% and 10% hydroiodic acid is used with high-purity methylammonium iodide to achieve optimal device performance. The amount required depends on the precursors used, solution concentration, solvent used, and processing environment. Therefore, this will need to be adjusted for each individual laboratory and process.
Description
Methylammonium iodide (MAI), also referred to as methylamine hydroiodide,is a precursor for the synthesis of organic-inorganic hybrid perovskites for use in FETs, LEDs and PVs.
Application
For simpler ink fabrication, it is recommended that the lower-purity methylammonium iodide (>98%) is used.
Uses
The iodide and bromide based alkylated halides find applications as precursors for fabrication of perovskites for photovoltaic applications.
Uses
Organohalide based perovskites have emerged as an important class of material for solar cell applications. Our perovskites precursors with extremely low water contents are useful for synthesizing mixed cation or anion perovskites needed for the optimization of the band gap, carrier diffusion length and power conversion efficiency of perovskites based solar cells.
Uses
Methylammonium iodide can be used as a precursor in combination with lead iodide to change the morphology of the resulting perovskite materials. Perovskite materials can further be utilized in the fabrication of alternative energy devices such as light emitting diodes (LEDs), and perovskite solar cells (PSCs).
