In LPE, a substrate is immersed in a supersaturated solution containing the material to be deposited. The solution is typically composed of a solvent and the solute, which is the material intended for growth. The process generally involves three main steps:
Heating the solution to dissolve the solute. Cooling the solution to supersaturate it, causing the solute to precipitate onto the substrate and form a thin film. Controlling the growth conditions to ensure uniform and high-quality crystalline layers.