CH3NH3I

Methylammonium iodide, with the chemical formula CH3NH3I, is an organic salt. It is composed of a methylammonium cation (CH3NH3+) and an iodide anion (I-). This compound typically appears as a white crystalline solid.

Methylammonium iodide is known for its role in the field of perovskite solar cells. It is a key component in the formation of hybrid organic-inorganic perovskite materials, which have shown great promise for photovoltaic applications due to their excellent light-harvesting properties and efficient charge transport. The specific structure of methylammonium iodide contributes to the overall crystal lattice of these perovskites, influencing their electronic and optical characteristics.

The synthesis of methylammonium iodide can be achieved through the reaction of methylamine with hydroiodic acid. It is soluble in polar solvents such as water and ethanol. Due to its sensitivity to moisture and light, proper storage conditions are often necessary to maintain its purity and stability. Research continues into optimizing its use and understanding its properties for various scientific applications, particularly in emerging energy technologies.