METHYLAMMONIUM IODIDE CH₃NH₃I 99% MAI CAS 14965-49-2RESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Methylammonium iodide is strongly hygroscopic and light-sensitive, requiring strict moisture-free and light-protected storage. Handling must be performed in an inert-atmosphere glovebox to prevent degradation and maintain precursor stoichiometry.
- Storage Conditions: Store the material sealed under inert atmosphere, protected from light, at room temperature in a desiccated environment.
- Glovebox Requirement: All handling for precursor solution preparation must be performed in an inert-atmosphere glovebox with H₂O and O₂ below 1 ppm.
- Chemical Compatibility: Do not store methylammonium iodide together with strong oxidizing agents or strong acids.
- Moisture Sensitivity: Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.
- Solvent Compatibility: The compound is freely soluble in water, DMF, and DMSO, and soluble in methanol and isopropanol, enabling versatile precursor formulation.
Methylammonium iodide requires strict moisture control during handling to prevent degradation. Follow these steps to ensure material integrity and safety.
Required Equipment: Inert-atmosphere glovebox (H₂O < 1 ppm, O₂ < 1 ppm), Desiccated, light-protected storage container, Protective gloves
- Transfer to Storage
Upon receipt, transfer the sealed package to a desiccated, light-protected storage environment to prevent moisture ingress and photodegradation. - Prepare Glovebox
Before use, place the material inside an inert-atmosphere glovebox with H₂O and O₂ levels below 1 ppm. - Open Container
Open the container only inside the glovebox and immediately tighten the cap after each use to maintain anhydrous conditions. - Wear Protective Gloves
Wear protective gloves throughout all handling procedures to avoid direct skin contact.
How does the >99% purity of this MAI precursor affect defect density and reproducibility in MAPbI3 thin films?
The >99% purity minimizes extrinsic ionic defects in perovskite thin films, supporting reproducible device performance across multiple deposition techniques. Low batch impurity content ensures consistent stoichiometry for bandgap engineering and compositional optimization studies.
Can this methylammonium iodide be used directly in vacuum thermal evaporation without additional purification?
Yes, the material is compatible with vacuum thermal evaporation as supplied. Its white crystalline solid form and defined molecular weight (159.5 g/mol) allow direct use. However, due to its strongly hygroscopic nature, handling must be performed in an inert-atmosphere glovebox (H2O < 1 ppm, O2 < 1 ppm) to prevent moisture-induced degradation prior to evaporation.
What specific storage conditions are required to prevent deliquescence and hydrolysis of this MAI precursor?
The product requires strict light-sensitive hygroscopic dry storage: sealed under inert atmosphere, protected from light, and maintained at room temperature. Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. Upon receipt, transfer immediately to a desiccated, light-protected environment and tighten the container cap after each use; do not store with strong oxidizing agents or strong acids.
Methylammonium Iodide (MAI) at >99% purity is a critical precursor for hybrid perovskite solar cells, offering broad solvent compatibility for versatile deposition methods, but requires strict inert-atmosphere handling and light-protected storage to prevent moisture-induced degradation.
Positive
- Fundamental Precursor for Hybrid Perovskites: MAI serves as the core iodine source for MAPbI₃, mixed-cation FA/MA, and cesium-containing composite perovskite solutions, making it the essential starting material for virtually all hybrid perovskite thin film research.
- Broad Solvent Compatibility for Versatile Processing: Excellent solubility in water, DMF, DMSO, methanol, and isopropanol enables flexible precursor solution formulation across spin-coating, vacuum evaporation, and solution-based synthetic routes.
Trade-offs
- Hygroscopic and Light-Sensitive Storage Required: The material is strongly hygroscopic and light-sensitive, requiring sealed storage under inert atmosphere, protected from light, at room temperature to prevent deliquescence and hydrolysis that irreversibly degrade precursor stoichiometry.
- Requires Inert-Atmosphere Handling for Preparation: Precursor solution preparation must be performed inside an inert-atmosphere glovebox (H₂O < 1 ppm, O₂ < 1 ppm) to avoid moisture ingress that would compromise the material's integrity and device reproducibility.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
