Mathematical modelling of optical properties of CdSe/ZnS core shell quantum dot

In this paper, the electron and hole energies are computed for core/shell quantum dots (CSQDs) using two ways. First, we have resolved the three dimensional Schrödinger equation in the spherical coordinate system. The second approach is based on a combination of coordinate transformation and the finite difference method. The carrier energy levels of CdSe/ZnS CSQD are investigated, then the transition energies and the oscillator strength are deduced.