Formamidinium Lead Bromide Description
Formamidinium Lead Bromide (FAPbBr3) Powder is a lead halide perovskite material with the chemical formula FAPbBr₃, where "FA" stands for formamidinium (CH₅N₂⁺), Pb represents lead (Pb²⁺), and Br is bromine (Br⁻). It is widely studied and used in optoelectronic devices such as light-emitting diodes (LEDs), solar cells, and photodetectors due to its unique structural, optical, and electronic properties.
Formamidinium Lead Bromide (FAPbBr₃) is an important material in the field of optoelectronics, particularly for light-emitting applications due to its green light emission and stability. However, like other lead halide perovskites, it faces challenges related to environmental stability and lead toxicity.
Formamidinium Lead Bromide Specification
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Appearance
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Orange crystals
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CAS No.
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1008105-17-6
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Chemical Formula
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CH5Br3N2Pb, FAPbBr3
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Molecular Weight
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491.98
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Purity
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≥99%
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Formamidinium Lead Bromide Applications
- Perovskite LEDs (PeLEDs): FAPbBr₃ is primarily used in the development of green light-emitting diodes due to its excellent photoluminescence and high efficiency in emitting green light.
- Photodetectors: The material's efficient light absorption and charge transport properties make it suitable for use in photodetector applications.
- Solar Cells (Tandem Structure): While less common than FAPbI₃ in single-junction solar cells, FAPbBr₃ can be used in tandem solar cells to capture high-energy photons, enhancing the overall efficiency of multi-junction devices.
Formamidinium Lead Bromide Packing
Our Formamidinium Lead Bromide is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
1g, or as required in glass bottle
FAQs
Q1: What is Formamidinium Lead Bromide (FAPbBr₃)?
Answer: Formamidinium Lead Bromide (FAPbBr₃) is a lead halide perovskite material, consisting of formamidinium (FA⁺), lead (Pb²⁺), and bromide (Br⁻) ions. It is widely used in optoelectronic devices like LEDs, solar cells, and photodetectors due to its excellent luminescent and electronic properties.
Q2: How does FAPbBr₃ differ from FAPbI₃?
Answer: FAPbBr₃ uses bromine (Br⁻) instead of iodine (I⁻) as the halide. As a result, FAPbBr₃ has a larger band gap (~2.2 eV) compared to FAPbI₃ (~1.48 eV), making it more suitable for emitting green light and for applications like LEDs. FAPbI₃, with a smaller band gap, is better for solar cell applications.
Q3: What is the significance of FAPbBr₃ in perovskite LEDs (PeLEDs)?
Answer: FAPbBr₃ is an important material in perovskite LEDs because it emits bright green light with high photoluminescence efficiency. Its optoelectronic properties make it an ideal candidate for energy-efficient, high-performance green LEDs.
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