CdTe (Cadmium Telluride) quantum wells are nanostructures where the motion of electrons, holes, or excitons is confined to two dimensions. These structures are created by sandwiching a thin layer of CdTe between layers of materials with a larger bandgap, such as CdSe or ZnTe. This confinement leads to the quantization of energy levels, allowing for unique electronic and optical properties.
