Optical properties of II-VI semiconductor nanocrystals

Abstract
An empirical tight-binding framework and the recursion method are used to calculate some electronic properties of II-VI semiconductor nanocrystals. First, the ground-state energy of the exciton is calculated. Results are given for six different II-VI compounds. A simple evaluation of the optical absorption peak of the excitons is favourably compared with experimental data. Finally, a calculation of the density of states is presented.