MethylammoniumBleiTriplet

Methylammonium refers to the cation with the chemical formula CH3NH3+. It is the protonated form of methylamine. This cation is formed when methylamine (CH3NH2), a primary amine, accepts a proton (H+). The positive charge resides on the nitrogen atom, which is now bonded to four hydrogen atoms and one methyl group. Methylammonium is a simple organic cation and a constituent of various chemical compounds.

In organic chemistry, methylammonium salts are commonly encountered. For instance, methylammonium chloride (CH3NH3+Cl-) and methylammonium sulfate ((CH3NH3+)2SO42-) are typical examples. These salts are generally soluble in polar solvents like water. The properties of methylammonium salts are influenced by the associated anion.

A significant area where methylammonium plays a role is in the field of perovskite solar cells. Certain types of perovskite materials, used as light-harvesting layers in these solar cells, incorporate methylammonium cations within their crystal structure. For example, methylammonium lead iodide (CH3NH3PbI3) is a well-known halide perovskite. The presence and arrangement of methylammonium ions within the perovskite lattice are crucial for determining the material's electronic and optical properties, and thus its performance in photovoltaic devices.