INVESTIGATING THE INFLUENCE OF QUANTUM CONFINEMENT ON THE ABSORPTION WAVELENGTH OF CADMIUM SULFIDE AND ZINC OXIDE USING THE BRUS MODEL

In the present work, the Brus model was used to study the effects of quantum confinement energy on the properties of materials (cadmium sulfide and zinc oxide). The research was carried out utilizing the MATLAB computer software program. The results indicated that the properties of the material depend on the quantum confinement energy, where an increase in the quantum confinement energy by decreasing the particle size is offset by a wavelength shift toward shorter wavelengths (blue shift). In addition, the results also showed that the Bohr radius of the exciton decreases from the normal value.