QUANTUM DOT CONFINED CDSE SEMICONDUCTOR

Recent detection of excitonium has generated interest in excitons that are reigning photonic material science since last 50 years. In low dimension materials such as quantum dots, rods or sheets, the sizes are of few exciton radii in three, two and one axes respectively, and exciton binding is greatly influenced by such a confining potential on the boundary at which the crystalline order suddenly changes or vanishes. The size resolved binding energy of exciton in semiconducting Cadmium Selenide is here taken as a marker of the onset of nanophase, and calculations are reported using available data on quantum confinement.