FORMAMIDINIUM IODIDE CH₃IN₂ 99% FAI CAS 879643-71-7RESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This material is strongly hygroscopic and light-sensitive, requiring strict inert-atmosphere storage to prevent deliquescence and hydrolysis. Exposure to moisture or light irreversibly degrades precursor stoichiometry and compromises device performance.
- Environmental Storage Conditions: Store sealed under inert atmosphere, protected from light, at room temperature.
- Inert Atmosphere Requirement: Transfer and handle the solid only within a glovebox maintaining H2O < 1 ppm and O2 < 1 ppm.
- Chemical Incompatibility: Do not store together with strong oxidizing agents or acidic reagents.
- Degradation Failure Mode: Atmospheric moisture causes deliquescence and hydrolysis, irreversibly altering precursor stoichiometry.
- Post-Use Handling: Tighten the container cap immediately after each use to prevent moisture ingress.
This procedure describes the safe handling and storage of formamidinium iodide to prevent degradation from moisture and light. Follow these steps to maintain precursor integrity during perovskite thin-film preparation.
Required Equipment: Inert-atmosphere glovebox (H2O < 1 ppm, O2 < 1 ppm), Personal protective equipment (gloves)
- Don protective gear
Don personal protective equipment including gloves before handling the material. - Transfer to glovebox
Transfer the sealed container to an inert-atmosphere glovebox maintaining H2O < 1 ppm and O2 < 1 ppm. - Dispense material
Open the container only inside the glovebox and dispense the required amount of solid. - Reseal container
Tighten the container cap immediately after each use to prevent moisture ingress. - Store properly
Store the sealed container in a light-protected, dry, moisture-free environment at room temperature.
How does the >99% purity of formamidinium iodide affect defect density and reproducibility in perovskite thin films?
The >99% purity with low batch impurity content minimizes extrinsic ionic defects in perovskite thin films, supporting reproducible device performance across various deposition techniques. This high purity is critical for achieving consistent optoelectronic output in FAPbI₃ and mixed-cation formulations, as impurities can introduce non-radiative recombination centers and degrade device efficiency.
Can formamidinium iodide be processed in ambient air, or is an inert atmosphere required for solution preparation?
Formamidinium iodide is strongly hygroscopic and must be handled within an inert-atmosphere glovebox (H₂O < 1 ppm, O₂ < 1 ppm) when preparing precursor solutions. Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry and compromising perovskite film quality.
What specific storage conditions are required to prevent degradation of formamidinium iodide after receipt?
The material requires light-protected, dry, sealed storage at room temperature. Upon receipt, it must be transferred immediately to a desiccated, light-protected environment. The container cap must be tightened immediately after each use to prevent moisture ingress from ambient air, and it should not be stored with strong oxidizing agents or acidic reagents.
Formamidinium Iodide (FAI) at >99% purity is a critical precursor for fabricating thermally stable formamidinium-based perovskite thin films, offering superior thermal and moisture resistance compared to pure MAPbI3. However, its strongly hygroscopic and light-sensitive nature mandates handling in an inert-atmosphere glovebox and strict light-protected dry storage to prevent irreversible degradation.
Positive
- Enhanced thermal stability for FA-based perovskites: Formamidinium-based perovskite films exhibit superior thermal stability compared to methylammonium-based compositions, making FAI the preferred precursor for high-performance photovoltaic devices requiring extended operational lifetimes.
- Ultra-high purity >99% with low batch impurity: The material is refined to >99% purity with low batch impurity content, minimizing extrinsic ionic defects in perovskite thin films and supporting reproducible device performance across various deposition techniques.
Trade-offs
- Strongly hygroscopic and light-sensitive: The material requires strict light-protected, dry, sealed storage under inert atmosphere at room temperature. Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.
- Requires inert-atmosphere glovebox handling: Precursor solution preparation must be performed in an inert-atmosphere glovebox with H2O < 1 ppm and O2 < 1 ppm to prevent moisture ingress and maintain material integrity.
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).
