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n-Dodecylammonium Iodide C₁₂H₂₈IN 99% Purity White Powder Ultra-Long-Chain 2D Perovskite Hydrophobic Barrier Precursor CAS 34099-97-3 Light-Sensitive Hygroscopic Glovebox Storage

n-Dodecylammonium Iodide 99% C12 Precursor 10 g

$147.00

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Research-grade n-dodecylammonium iodide 99% C12 spacer, 10 g, CAS 34099-97-3; hydrophobic 2D perovskite precursor for DMF/DMSO device work. Order now.

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Description

N-DODECYLAMMONIUM IODIDE C₁₂H₂₈IN 99% CAS 34099-97-3

RESEARCH GRADE MATERIAL

Product Overview
n-Dodecylammonium Iodide (C₁₂H₂₈IN, CAS 34099-97-3) is an ultra-long straight-chain alkyl iodide salt 2D perovskite precursor with C₁₂H₂₈IN 99% purity, supplied as a white powder with a molecular weight of 313.26 g/mol and freely soluble in perovskite polar organic solvents including DMF and DMSO. The twelve-carbon dodecyl chain provides the strongest hydrophobic effect among common alkylammonium spacer cations, constructing exceptionally stable two-dimensional layered perovskite structures. This 2D perovskite hydrophobic barrier material effectively blocks moisture and oxygen ingress into the perovskite lattice, passivates grain boundary and surface iodine vacancy defects, and suppresses perovskite phase degradation. The ultra-long alkyl chain delivers dramatic improvements in device environmental stability that significantly exceed those achievable with shorter-chain analogs. Widely employed in the fabrication and surface passivation modification of 2D perovskite solar cells, photodetectors, and X-ray sensor devices, this precursor is compatible with spin-coating and precursor co-blending mainstream experimental processes. With uniform batch-to-batch purity and good experimental reproducibility, the product requires strict light-sensitive hygroscopic glovebox storage to maintain material integrity.

Technical Specifications
PARAMETER DETAILS
Molecular Formula C₁₂H₂₈IN
CAS Number 34099-97-3
Molecular Weight 313.26 g/mol
Alkyl Chain Length C12 (Dodecyl)
Specification 10 g
Purity >99%
Physical Form White Powder
Solubility Freely Soluble in DMF, DMSO and Polar Organic Solvents
Storage Conditions Light-Protected, Dry, Sealed, Room Temperature; Long-Term: N₂ Glovebox Recommended
Custom Configurations Other packaging specifications are available upon request. Please contact us via email for custom orders.

Key Features & Advantages
  • Ultra-Long C12 Chain for Maximum Hydrophobic Protection: The twelve-carbon dodecyl chain provides the most robust hydrophobic barrier among standard alkylammonium spacers, delivering dramatically superior moisture and oxygen exclusion compared to shorter-chain butyl, hexyl, or octyl analogs for ultimate environmental stability.
  • Suppression of Perovskite Phase Degradation: The dense hydrophobic organic layer formed by the dodecylammonium cation effectively prevents water-induced perovskite phase transition and decomposition, maintaining the photoactive black phase under ambient conditions that would rapidly degrade unprotected films.
  • Iodine Vacancy and Grain Boundary Passivation: The ammonium head group passivates iodine vacancy defects and grain boundary trap states while the ultra-long chain provides an extended spatial barrier that physically separates adjacent perovskite grains from environmental exposure pathways.
  • Ideal for High-Stability Device Applications: The exceptional environmental stability imparted by the C12 spacer makes this precursor particularly well-suited for 2D perovskite solar cells, X-ray detectors, and photodetectors where long-term operational stability under ambient conditions is a critical performance requirement.

APPLICATION SCOPE: Ultra-long-chain organic spacer cation for highly stable 2D Ruddlesden-Popper phase perovskite synthesis. Maximum hydrophobic barrier precursor for moisture-resistant and oxygen-resistant perovskite devices. Surface passivation and grain boundary modification agent for iodine vacancy defect suppression. Phase degradation inhibitor for maintaining photoactive perovskite phase under ambient exposure. Compatible with spin-coating and precursor co-blending deposition protocols. Supports 2D perovskite solar cell, photodetector, and X-ray sensor device research in university and research institute laboratories where extended ambient stability is the primary experimental objective.
PACKAGING: This listing is for the 10 g specification. Other packaging weights are available upon custom request. Each package is sealed under inert atmosphere within light-protective packaging to prevent photodegradation and moisture ingress. The hygroscopic nature of n-dodecylammonium iodide necessitates immediate transfer to a desiccated, light-protected storage environment—preferably a nitrogen-filled glovebox for long-term storage. For bulk quantities or custom packaging specifications, please contact us via email.
IMPORTANT NOTICE: n-Dodecylammonium iodide is hygroscopic and light-sensitive. Tighten the container cap immediately after each use to prevent moisture ingress from ambient air. Wear protective gloves throughout all experimental procedures; avoid direct skin contact with the powder. Store in a light-protected, moisture-free environment; do not store together with strong acids or strong oxidizing agents. Prioritize powder weighing and solution preparation within a nitrogen-filled inert glovebox (H₂O < 1 ppm, O₂ < 1 ppm). For long-term storage, inert-atmosphere glovebox conditions are recommended. Exposure to atmospheric moisture will cause deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. Note that the long C12 chain may reduce precursor solubility compared to shorter-chain analogs—ensure complete dissolution before filtration or deposition. For detailed safety and handling information, consult the Safety Data Sheet prior to use.
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

This hygroscopic, light-sensitive alkylammonium iodide salt requires strict exclusion of moisture and light to prevent irreversible deliquescence and stoichiometric degradation. Long-term material integrity depends on inert-atmosphere glovebox storage (H₂O < 1 ppm, O₂ < 1 ppm) and immediate resealing after each use.

  • Moisture Sensitivity: Atmospheric moisture exposure causes deliquescence and hydrolysis, irreversibly disrupting precursor stoichiometry and material performance.
  • Light Sensitivity: Photodegradation occurs under ambient light, necessitating light-protective packaging and dark storage conditions at all times.
  • Inert Atmosphere Requirement: All weighing and solution preparation must be performed inside a nitrogen-filled glovebox with H₂O and O₂ below 1 ppm to avoid premature degradation.
  • Long-Chain Solubility Constraint: The C12 alkyl chain reduces solubility in polar organic solvents compared to shorter-chain analogs, requiring thorough dissolution before filtration or deposition.
  • Container Integrity: The container cap must be tightened immediately after every use to prevent moisture ingress from ambient air.

This procedure describes the safe handling, weighing, and solution preparation of the hygroscopic, light-sensitive precursor under inert atmosphere. Proper execution ensures material purity, prevents degradation, and maintains experimental reproducibility.

Required Equipment: Nitrogen-filled glovebox (H₂O < 1 ppm, O₂ < 1 ppm), Light-protective sealed container, Anhydrous polar organic solvent (e.g., DMF or DMSO), Protective gloves and safety goggles

  1. Transfer to glovebox
    Transfer the sealed, light-protected bottle into a nitrogen-filled glovebox with H₂O and O₂ below 1 ppm before opening.
  2. Weigh powder under inert atmosphere
    Weigh the required amount of white powder directly inside the glovebox, minimizing exposure to ambient glovebox light by shielding the sample.
  3. Prepare solution
    Dissolve the weighed powder in anhydrous DMF or DMSO at the desired concentration, stirring until completely dissolved.
  4. Filter solution
    Filter the solution through a 0.2 µm PTFE syringe filter to remove any undissolved particulates before deposition.
  5. Store unused material
    Tighten the container cap immediately after use and return the material to light-protected, desiccated storage under inert atmosphere.

Does the ultra-long C12 dodecyl chain in n-Dodecylammonium Iodide affect its solubility in common perovskite solvents compared to shorter-chain analogs?

Yes, the ultra-long C12 chain may reduce precursor solubility in DMF and DMSO relative to shorter-chain butyl, hexyl, or octyl analogs. The product description explicitly notes this trade-off and advises ensuring complete dissolution before filtration or deposition. Despite this, the material remains freely soluble in DMF and DMSO under standard conditions.

What are the critical storage and handling requirements for n-Dodecylammonium Iodide to maintain its integrity for 2D perovskite device fabrication?

This material is hygroscopic and light-sensitive, requiring strict light-protected, dry, sealed storage at room temperature. For long-term integrity, a nitrogen-filled glovebox (H₂O < 1 ppm, O₂ < 1 ppm) is recommended, and the container cap must be tightened immediately after each use. Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry.

Is a nitrogen glovebox mandatory for handling n-Dodecylammonium Iodide, or can it be prepared in ambient conditions for short periods?

While short-term handling in ambient air with immediate container sealing may be possible, the product description strongly prioritizes powder weighing and solution preparation within a nitrogen-filled inert glovebox (H₂O < 1 ppm, O₂ < 1 ppm). Ambient exposure risk is highlighted by the statement that moisture will cause deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry, making glovebox use the recommended practice for maintaining material integrity.

n-Dodecylammonium Iodide (C12H28IN, CAS 34099-97-3) provides exceptional hydrophobic barrier properties for 2D perovskite stability via its ultra-long C12 chain, but requires strict inert atmosphere handling and may display reduced solubility compared to shorter-chain analogs.

Positive

  • Ultra-long C12 hydrophobic barrier: The twelve-carbon dodecyl chain provides the strongest hydrophobic effect among common alkylammonium spacers, effectively blocking moisture and oxygen ingress and suppressing perovskite phase degradation.
  • Iodine vacancy and grain boundary passivation: The ammonium head group passivates iodine vacancy defects and grain boundary trap states while the extended chain physically separates grains from environmental exposure pathways.

Trade-offs

  • Hygroscopic and light-sensitive storage: Material requires strict light-protected, dry, inert atmosphere storage (N2 glovebox recommended) to prevent deliquescence and hydrolysis that irreversibly degrade precursor stoichiometry.
  • Reduced solubility from long alkyl chain: The C12 chain may reduce precursor solubility in polar solvents compared to shorter-chain analogs; ensure complete dissolution before filtration or deposition.

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.

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