The PbI2/MAI(1:1) - DMF complex is primarily utilized in the field of perovskite solar cells. It serves as a precursor solution for the fabrication of high-quality perovskite films, which are essential for efficient light absorption and charge transport in these solar cells. The complex ensures uniform film formation, leading to improved device performance and stability. Additionally, it plays a critical role in optimizing the crystallization process of perovskite materials, enhancing their photovoltaic properties. This makes it a key component in advancing next-generation solar energy technologies.