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4-Fluoro-Phenethylammonium Bromide C₈H₁₁BrFN 99% Purity 4FPEABr White Powder 2D Perovskite Defect Passivation Precursor CAS 1807536-06-6 Light-Sensitive Hygroscopic Glovebox Storage

4-Fluoro-Phenethylammonium Bromide 99% 5g Powder

$137.00

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Research-grade 4FPEABr white powder, >99% purity, 5 g, CAS 1807536-06-6, for 2D/quasi-2D bromide perovskite passivation; DMF/DMSO soluble. Order now.

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Description

4-FLUORO-PHENETHYLAMMONIUM BROMIDE C₈H₁₁BRFN 99% 4FPEABR CAS 1807536-06-6

RESEARCH GRADE MATERIAL

Product Overview
4-Fluoro-Phenethylammonium Bromide (C₈H₁₁BrFN, 4FPEABr, CAS 1807536-06-6) is a para-fluorine modified phenethyl organic bromide salt precursor with C₈H₁₁BrFN 99% purity 4FPEABr, supplied as a white powder with a molecular weight of 220.08 g/mol and freely soluble in perovskite-relevant polar organic solvents including DMF and DMSO. This compound functions as an advanced 2D perovskite defect passivation agent, employed for both 2D and quasi-2D bromide-based perovskite thin film fabrication and as a surface passivation additive for 3D perovskite films. The para-fluorine substituent on the aromatic ring modulates molecular dipole moment, optimizes crystal growth orientation, and passivates grain boundary and surface defects, thereby reducing non-radiative recombination. The fluorine-substituted alkyl chain provides strong hydrophobic characteristics that block moisture penetration, significantly enhancing the environmental stability of bromide-based perovskite light-emitting devices and photodetectors. Extensively purified with stable batch-to-batch experimental reproducibility, this precursor is compatible with spin-coating and precursor co-blending preparation techniques. Widely utilized in university and research institute laboratories for narrow-bandgap light emission, X-ray detection, and two-dimensional photovoltaic research, the product requires strict light-sensitive hygroscopic glovebox storage to maintain material integrity.

Technical Specifications
PARAMETER DETAILS
Molecular Formula C₈H₁₁BrFN
CAS Number 1807536-06-6
Molecular Weight 220.08 g/mol
Specification 5 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
  • Fluorine-Modulated Dipole for Crystal Orientation Control: The electron-withdrawing para-fluorine substituent establishes a molecular dipole that influences crystal growth orientation during perovskite film formation, promoting favorable grain alignment for enhanced charge transport in bromide-based devices.
  • Bromide Analog for Halide Consistency in Passivation: As the bromide salt variant in the fluoro-phenethylammonium series, 4FPEABr provides halide-matched passivation for bromide-based perovskite compositions, eliminating halide exchange effects that can alter bandgap during surface treatment.
  • Strong Hydrophobic Barrier with Defect Passivation: The fluorine-substituted aromatic ring provides enhanced hydrophobicity compared to unsubstituted PEABr, delivering superior moisture protection while the ammonium head group simultaneously passivates grain boundary and surface defect states.
  • Stable Batch-to-Batch Reproducibility: Extensively purified with >99% purity and rigorous quality control, the precursor ensures consistent experimental data reproducibility and reliable device performance across extended research programs.

APPLICATION SCOPE: Fluorine-functionalized organic spacer cation for 2D and quasi-2D bromide-based perovskite synthesis. Halide-matched surface passivation agent for bromide perovskite thin films. Crystal growth orientation optimization precursor via dipole-modulated nucleation. Hydrophobic barrier additive for moisture-resistant perovskite light-emitting devices and photodetectors. Compatible with spin-coating and precursor co-blending deposition protocols. Supports narrow-bandgap light emission, X-ray detection, and two-dimensional photovoltaic research in university and research institute laboratories.
PACKAGING: This listing is for the 5 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 4-fluoro-phenethylammonium bromide 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: 4-Fluoro-Phenethylammonium bromide 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. Store in a light-protected, moisture-free environment; do not store together with strong oxidizing agents or acidic reagents. 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. 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 compound is highly hygroscopic and light-sensitive, requiring storage in a sealed, light-protected environment under inert atmosphere to prevent deliquescence and photodegradation. Exposure to atmospheric moisture will irreversibly hydrolyze the material, compromising precursor stoichiometry and device performance.

  • Moisture Sensitivity: The powder deliquesces upon exposure to ambient humidity, requiring handling and storage in a glovebox with H2O below 1 ppm.
  • Light Sensitivity: Prolonged exposure to light causes photodegradation; store in amber or opaque containers.
  • Glovebox Requirement: All weighing and solution preparation must be performed in a nitrogen-filled glovebox with O2 below 1 ppm to prevent oxidative degradation.
  • Compatibility: Do not store together with strong oxidizing agents or acidic reagents to avoid hazardous reactions.
  • Container Handling: Tighten the cap immediately after each use to prevent moisture ingress from ambient air.

Follow this procedure to safely handle and prepare the hygroscopic, light-sensitive precursor while maintaining material integrity. All steps must be performed in a controlled inert atmosphere environment.

Required Equipment: Nitrogen-filled glovebox with H2O and O2 monitors (H2O < 1 ppm, O2 < 1 ppm), Light-protective sealed container or amber vial

  1. Transfer to Glovebox
    Transfer the sealed container into a nitrogen-filled glovebox with monitored H2O and O2 levels below 1 ppm.
  2. Verify Atmosphere
    Verify that the glovebox atmosphere is within specifications before opening the container.
  3. Weigh Powder
    Weigh the required amount of powder into a clean, dry vial using an analytical balance inside the glovebox.
  4. Reseal Containers
    Immediately reseal the original container and the weighing vial to prevent moisture and light exposure.
  5. Store Safely
    Store the weighed powder or prepared solution in a light-protected, desiccated location within the glovebox.

Does the fluorine substitution in 4FPEABr introduce any undesirable electronic effects compared to unsubstituted PEABr in bromide perovskite devices?

The para-fluorine substitution in 4FPEABr establishes a molecular dipole that promotes favorable grain alignment and enhances charge transport, while the ammonium head group passivates grain boundary and surface defects, reducing non-radiative recombination. The source does not report adverse electronic effects; however, the compound is specifically designed for bromide-based perovskites to provide halide-matched passivation, indicating that performance benefits are limited to bromide systems and may not transfer to iodide-based compositions without altering bandgap via halide exchange.

Can 4FPEABr be used as a surface passivation agent for iodide-based perovskite thin films?

No, 4FPEABr is a bromide salt variant intended for bromide-based perovskite compositions. Using it on iodide-based films would introduce halide exchange effects that can alter bandgap, as the source specifies that the bromide analog provides 'halide-matched passivation for bromide-based perovskite compositions, eliminating halide exchange effects that can alter bandgap during surface treatment.' Therefore, it should only be applied to bromide-based perovskites to maintain optical properties.

What specific storage and handling conditions are required to prevent degradation of 4FPEABr?

4FPEABr is hygroscopic and light-sensitive. It must be stored in a light-protected, dry, sealed container at room temperature; for long-term storage, a nitrogen glovebox with H₂O < 1 ppm and O₂ < 1 ppm is recommended. Exposure to atmospheric moisture causes deliquescence and hydrolysis, irreversibly degrading precursor stoichiometry. The container cap should be tightened immediately after each use, and powder weighing and solution preparation should be performed in an inert glovebox to maintain material integrity.

This para-fluorine modified phenethylammonium bromide salt provides halide-matched defect passivation for bromide-based perovskites and dipole-modulated crystal orientation control, but demands strict inert-atmosphere glovebox handling and light-protected storage to prevent irreversible moisture-induced degradation.

Positive

  • Fluorine-Modulated Dipole Control: The electron-withdrawing para-fluorine substituent establishes a molecular dipole that influences crystal growth orientation during perovskite film formation, promoting favorable grain alignment for enhanced charge transport in bromide-based devices.
  • Halide-Matched Passivation: As the bromide salt variant in the fluoro-phenethylammonium series, 4FPEABr provides halide-matched passivation for bromide-based perovskite compositions, eliminating halide exchange effects that can alter bandgap during surface treatment.

Trade-offs

  • Hygroscopic and Light-Sensitive Storage: The compound is hygroscopic and light-sensitive; it must be stored in a light-protected, dry, sealed container at room temperature, with long-term storage recommended in a nitrogen glovebox to prevent deliquescence and hydrolysis.
  • Inert Glovebox Handling Required: Powder weighing and solution preparation should be performed within a nitrogen-filled inert glovebox (H₂O < 1 ppm, O₂ < 1 ppm) because exposure to atmospheric moisture will irreversibly degrade precursor stoichiometry via deliquescence and hydrolysis.

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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