Description
DIMETHYLAMMONIUM IODIDE C₂H₈IN 99% DMAI CAS 51066-74-1RESEARCH GRADE MATERIAL
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TAILORED SOLUTIONS FOR RESEARCH
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Dimethylammonium iodide is highly hygroscopic and light-sensitive, requiring storage under inert atmosphere with moisture and light protection. Exposure to ambient moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.
- Moisture Sensitivity: The compound undergoes deliquescence and hydrolysis upon exposure to atmospheric moisture, irreversibly altering its chemical composition.
- Light Sensitivity: Prolonged exposure to light degrades the material, necessitating light-protective packaging and storage.
- Inert Atmosphere Requirement: Powder weighing and solution preparation must be performed in a nitrogen-filled glovebox with H2O < 1 ppm and O2 < 1 ppm to prevent degradation.
- Solvent Compatibility: The precursor is freely soluble in polar solvents such as DMF, DMSO, and methanol, and should be formulated using these solvents.
- Container Integrity: The container must be tightly sealed immediately after each use to prevent moisture ingress from ambient air.
Dimethylammonium iodide is a hygroscopic, light-sensitive perovskite precursor that requires inert-atmosphere handling. Proper storage and preparation are critical to maintain material integrity and experimental reproducibility.
Required Equipment: Nitrogen Glovebox, Desiccator, Light-Protective Container, Weighing Scale
- Inspect and Transfer
Inspect the received package for damage and transfer immediately to a light-protected, desiccated storage environment. - Set Up Glovebox
Place all necessary equipment and the compound container inside a nitrogen-filled glovebox prior to opening. - Weigh Under Inert Atmosphere
Weigh the required amount of dimethylammonium iodide under inert atmosphere using a clean spatula and weigh boat. - Dissolve in Solvent
Dissolve the weighed powder in anhydrous dimethylformamide, dimethyl sulfoxide, or methanol to prepare the precursor solution. - Reseal and Store
Tighten the container cap immediately after use and return the material to inert atmosphere storage.
How does dimethylammonium iodide doping affect the trade-off between lattice distortion and charge carrier mobility in perovskite thin films?
DMAI introduces controlled lattice distortion via its compact secondary ammonium cation, which optimizes grain size and passivates iodine vacancy defects. This reduces non-radiative recombination losses while enhancing charge carrier mobility and thermal stability, providing a steric tuning parameter distinct from primary ammonium cations without sacrificing mobility.
What are the critical solvent compatibility requirements for using DMAI in perovskite precursor solutions?
DMAI is freely soluble in polar solvents such as DMF, DMSO, and methanol, integrating seamlessly into standard spin-coating and precursor co-blending workflows without requiring specialized solvent systems. However, due to its hygroscopic nature, all solution preparation must be performed in a nitrogen-filled glovebox with H₂O < 1 ppm and O₂ < 1 ppm to prevent moisture-induced degradation.
What specific storage infrastructure is required to prevent degradation of dimethylammonium iodide?
DMAI must be stored in a light-protected, dry, sealed container at room temperature; long-term storage requires a nitrogen-filled glovebox with H₂O < 1 ppm and O₂ < 1 ppm. It is hygroscopic and light-sensitive—exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. Immediate transfer to a desiccated, light-protected environment after opening is essential.
Dimethylammonium Iodide (DMAI) is a perovskite precursor with 99% purity that enables lattice distortion engineering and iodine vacancy passivation, but requires strict inert-atmosphere handling due to hygroscopic and light-sensitive properties.
Positive
- Lattice distortion and defect passivation: The compact dimethylammonium cation introduces controlled lattice distortion in 3D perovskites and passivates iodine vacancy defects, reducing non-radiative recombination losses and enhancing charge carrier mobility.
- Broad perovskite research utility: DMAI serves both as a doping modifier for 3D perovskites and as a precursor for low-dimensional and 2D perovskite synthesis, providing experimental flexibility across solar cell, photodetector, and LED device research.
Trade-offs
- Strict inert-atmosphere storage required: The material is highly hygroscopic and light-sensitive, necessitating immediate transfer to a nitrogen-filled glovebox (H2O < 1 ppm, O2 < 1 ppm) for long-term storage to prevent deliquescence and hydrolysis.
- Moisture-induced irreversible degradation: Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry and compromising experimental 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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).





