OP6164 Formamidinium Iodide (CAS No. 879643-71-7)

Formamidinium Iodide Description

Formamidinium Iodide is a chemical compound with the formula CH(NH₂)₂I. It is commonly used as a key material in the development of perovskite solar cells, a type of photovoltaic technology. The formamidinium cation (FA+) in FAI is often combined with lead iodide (PbI₂) or other metal halides to create perovskite materials with desired optoelectronic properties.

Formamidinium Iodide Specification

Formamidinium Iodide Applications

• Perovskite Solar Cells:

Perovskites based on FAI provide improved efficiency and long-term stability in solar cell performance.

• Photovoltaics:

FAI is a popular choice in tandem solar cells and in hybrid halide perovskite compositions, which may incorporate mixed cations (formamidinium, methylammonium) to optimise efficiency and durability.

• Optoelectronics:

In addition to solar cells, FAI is also investigated for use in other optoelectronic devices such as light-emitting diodes (LEDs) and photodetectors.

Formamidinium Iodide Packaging

Our Formamidinium Iodide is carefully handled during storage and transport to maintain the quality of our product in its original state.

1.5g in glass bottle, or custom options available.

FAQs

Q1: What is the primary use of Formamidinium Iodide in solar cells?

Answer: FAI is primarily used to form Formamidinium Lead Iodide (FAPbI₃), a perovskite material essential for the active layer in solar cells. It enhances the efficiency and stability of perovskite solar cells by creating a more stable crystal structure and optimising light absorption.

Q2: Why is Formamidinium Iodide preferred over Methylammonium Iodide (MAI) in perovskites?

Answer: FAI is often preferred because it leads to a perovskite material (FAPbI₃) with better thermal and structural stability compared to MAI-based perovskites (MAPbI₃). This stability improves the lifespan and performance of perovskite solar cells.

Q3: How does Formamidinium Iodide contribute to the efficiency of perovskite solar cells?

Answer: FAI contributes to efficiency by forming a perovskite structure with a lower band gap (~1.48 eV for FAPbI₃), which allows for better light absorption across the solar spectrum. This results in higher conversion efficiencies in perovskite solar cells.