Formamidinium bromide is primarily used in the synthesis of perovskite materials, which are crucial for the development of high-efficiency solar cells. Its application in this field helps improve the stability and performance of perovskite-based photovoltaic devices. Additionally, it serves as a precursor in the preparation of formamidinium lead iodide, a key component in advanced solar energy technologies. The compound is also explored in research for its potential in optoelectronic applications, contributing to the advancement of next-generation light-emitting diodes (LEDs) and other electronic devices.