Product Name
Formamidine hydrobromide, 99.995%, Low water content, for perovskite solar cell
Molecular Formula
CH4N2.HBr
Certificate of Analysis (COA)
IUPAC Name
methanimidamide;hydrobromide
InChI Key
QWANGZFTSGZRPZ-UHFFFAOYSA-N
Product Introduction
Formamidine Hydrobromide (FABr, CAS No. 146958-06-7) is an organic bromide salt widely used as a key precursor material for the synthesis of formamidinium-based halide perovskites.
FABr provides the formamidinium cation (FA⁺) and bromide ion (Br⁻) required for constructing hybrid organic–inorganic perovskite structures. It is commonly used for preparing materials such as FAPbBr₃ (formamidinium lead bromide) and mixed-halide perovskites including FAPb(IₓBr₁₋ₓ)₃ systems.
Due to its ability to regulate crystal composition, bandgap, and optoelectronic properties, Formamidine Hydrobromide is an important research reagent for perovskite solar cells, semiconductor materials, photovoltaic devices, and advanced optoelectronic applications.
Mechanism / Principle
Perovskite Crystal Engineering Function
Formamidine Hydrobromide acts as an organic cation and bromide source during perovskite synthesis.
Working principle:
- FABr dissociates into FA⁺ and Br⁻ ions in precursor solutions.
- FA⁺ occupies the organic cation site within the perovskite crystal lattice.
- Br⁻ combines with metal halide sources such as PbBr₂ to form bromide-based perovskite structures.
- Bromide incorporation modifies the bandgap, crystal stability, and optical properties of perovskite materials.
Key features:
- Provides FA⁺ cation source
- Supplies bromide ions
- Enables perovskite composition tuning
- Supports bandgap engineering
Key Research Applications
1. Perovskite Solar Cells
Formamidine Hydrobromide is widely used in photovoltaic material research.
Applications include:
- FAPbBr₃ perovskite synthesis
- Mixed-halide perovskite solar cells
- Tandem solar cell materials
- Photovoltaic efficiency optimization
2. Halide Perovskite Semiconductor Materials
FABr is an important precursor for developing functional semiconductor materials.
Applications include:
- Perovskite crystal engineering
- Semiconductor property optimization
- Charge transport studies
- Thin-film semiconductor fabrication
3. Bandgap Engineering
The incorporation of bromide allows researchers to tune perovskite optical properties.
Applications include:
- Bandgap adjustment
- Color tuning of perovskite materials
- Optical absorption control
- Device performance optimization
4. Optoelectronic Devices
FABr-based perovskite materials are studied for various optoelectronic applications.
Applications include:
- Perovskite LEDs
- Photodetectors
- Light-emitting materials
- Optical sensing devices
5. Advanced Energy Materials
Formamidinium-based perovskites are important candidates for next-generation energy conversion technologies.
Applications include:
- Solar energy conversion
- Hybrid photovoltaic materials
- Interface modification
- Stability improvement research
Advantages
- High-purity perovskite precursor
- Provides FA⁺ and Br⁻ sources
- Enables precise perovskite composition control
- Supports bandgap engineering
- Suitable for solution-processing fabrication
- Widely used in photovoltaic research
Storage & Handling
- Store in a cool place.
- Keep container tightly closed in a dry and well-ventilated place.
- Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Research Areas
Researchers working in the following fields may benefit from Formamidine Hydrobromide (CAS No. 146958-06-7):
- Perovskite solar cells
- Photovoltaic materials
- Semiconductor materials
- Optoelectronic devices
- Energy conversion materials
- Thin-film electronics
- Materials chemistry
- Nanotechnology
Q1: What is Formamidine Hydrobromide?
A: Formamidine Hydrobromide (FABr, CAS No. 146958-06-7) is an organic bromide salt used as a precursor for formamidinium-based perovskite materials.
Q2: What is Formamidine Hydrobromide used for?
A: It is mainly used for:
- FAPbBr₃ synthesis
- Perovskite solar cells
- Mixed-halide perovskite materials
- Semiconductor research
Q3: What is the molecular formula of FABr?
A: The molecular formula is CH₅BrN₂, with a molecular weight of 124.97 g/mol.
Q4: Why is FABr important for perovskite solar cells?
A: FABr provides FA⁺ and Br⁻ ions, allowing researchers to adjust perovskite crystal structures, optical properties, and device performance.
Q5: What perovskite materials can be prepared from FABr?
A: Typical materials include:
- FAPbBr₃
- Mixed FAPb(I/Br)₃ perovskites
Q6: Is FABr moisture sensitive?
A: Yes. Like many perovskite precursor salts, FABr should be protected from moisture to maintain purity and performance.
Q7: How should FABr be stored?
A: Store sealed in a dry environment and protect from humidity.
Q8: What are related perovskite precursor materials?
A: Related products include:
- Formamidinium Iodide (FAI)
- Methylammonium Bromide (MABr)
- Methylammonium Iodide (MAI)
- Cesium Bromide (CsBr)
- Lead Bromide (PbBr₂)
