| Identification | Back Directory | [Name]
methylammonium iodide | [CAS]
14965-49-2 | [Synonyms]
CH3NH3I (MAI)
MethylazaniuM
MethanaMiniuM iodide
methylazanium,iodide
methylammonium iodide
Methanamine hydriodide
Methylamine Hydroiodide
Methylammonium iodide 98%
Methanamine hydriodide 98%
Methylamine·hydriodic acid
MethanaMine, hydriodide(9CI)
Methylamine Hydroiodide (Low water content) | [EINECS(EC#)]
239-037-4 | [Molecular Formula]
CH6IN | [MDL Number]
MFCD28100833 | [MOL File]
14965-49-2.mol | [Molecular Weight]
158.97 |
| Chemical Properties | Back Directory | [Melting point ]
270-280°C | [Fp ]
12℃ | [storage temp. ]
Hygroscopic, Refrigerator, under inert atmosphere | [solubility ]
Methanol (Slightly), Water | [form ]
powder | [color ]
White to Off-White |
| Hazard Information | Back Directory | [Application]
For simpler ink fabrication, it is recommended that the lower-purity methylammonium iodide (>98%) is used. | [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. | [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). |
| Questions And Answer | Back Directory | [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.
|
|
|