Description
METHYLAMMONIUM IODIDE CH₃NH₃I 99% MAI CAS 14965-49-2RESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
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EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This compound is strongly hygroscopic and light-sensitive, requiring storage under inert atmosphere and light protection. Exposure to atmospheric moisture causes deliquescence and irreversible stoichiometric degradation.
- Inert Atmosphere Storage: Seal the container under inert atmosphere and store at room temperature in a light-protected environment to prevent moisture ingress and photodegradation.
- Glovebox Requirement for Solution Preparation: Handle the solid inside an inert-atmosphere glovebox with H₂O < 1 ppm and O₂ < 1 ppm when preparing precursor solutions.
- Incompatibility with Oxidizers and Acids: Do not store together with strong oxidizing agents or strong acids to avoid hazardous reactions.
- Immediate Post-Receipt Handling: Upon receipt, transfer the package to a desiccated, light-protected storage environment to maintain stoichiometric integrity.
This protocol ensures the integrity of hygroscopic methylammonium iodide during storage and solution formulation. Strict inert atmosphere and light protection are required to avoid decomposition.
Required Equipment: Inert-atmosphere glovebox (H₂O < 1 ppm, O₂ < 1 ppm)
- Transfer to Storage
Upon receipt, transfer the sealed package to a desiccated, light-protected storage environment to prevent moisture uptake. - Prepare Glovebox Environment
Ensure the inert-atmosphere glovebox is active with H₂O < 1 ppm and O₂ < 1 ppm before introducing the material. - Weigh Precursor Inside Glovebox
Transfer the white crystalline solid into a clean vial within the glovebox, using a spatula, and cap immediately to avoid moisture exposure. - Dissolve in Anhydrous Solvent
Add the required volume of anhydrous DMF or DMSO to the solid and mix until fully dissolved, maintaining the solution inside the glovebox. - Post-Use Container Closure
Tighten the original container cap immediately after each use to prevent ambient moisture from entering the bulk material.
How does the >99% purity of methylammonium iodide influence ionic defect formation and reproducibility in perovskite thin films?
The >99% purity minimizes extrinsic ionic defects in perovskite thin films by reducing batch impurity content, directly supporting reproducible device performance across multiple deposition techniques. This is critical for bandgap engineering and compositional optimization studies relying on precise stoichiometry with the defined molecular weight of 159.5 g/mol.
Is methylammonium iodide compatible with both one-step spin-coating and vacuum thermal evaporation for perovskite solar cell fabrication?
Yes, it is compatible with one-step spin-coating, two-step sequential deposition, vacuum thermal evaporation, and solution-based synthetic protocols. Its broad solubility in water, DMF, DMSO, methanol, and isopropanol enables flexible precursor solution formulation across these techniques.
What specific storage and handling infrastructure is required for methylammonium iodide to prevent stoichiometric degradation?
The compound is strongly hygroscopic and light-sensitive, requiring sealed inert atmosphere, light-protected packaging, and room temperature storage. For handling, use an inert-atmosphere glovebox with H2O < 1 ppm and O2 < 1 ppm, and transfer immediately to a desiccated, light-protected environment upon receipt to prevent deliquescence and hydrolysis.
Methylammonium Iodide (MAI) is a high-purity perovskite precursor offering excellent solvent compatibility for versatile deposition, but requires strict inert-atmosphere handling and immediate dry storage to prevent moisture-induced degradation.
Positive
- Ultra-High Purity >99% for Reproducible Devices: Refined to >99% purity with low batch impurity content, minimizing extrinsic ionic defects in perovskite thin films and supporting reproducible device performance across multiple deposition techniques.
- Broad Solvent Compatibility Enables Flexible Processing: Freely soluble in water, DMF, and DMSO, with additional solubility in methanol and isopropanol, enabling versatile precursor formulation for spin-coating, vacuum evaporation, and solution-based deposition routes.
Trade-offs
- Requires Inert-Atmosphere Glovebox Handling: The strongly hygroscopic nature demands handling within an inert-atmosphere glovebox (H2O < 1 ppm, O2 < 1 ppm) to prevent moisture-induced deliquescence and stoichiometric degradation.
- Strong Hygroscopicity Needs Immediate Dry Storage: Upon receipt, the material must be transferred to a desiccated, light-protected environment to avoid moisture ingress, which irreversibly hydrolyzes the precursor and degrades performance.
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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
