Size quantization of excitons in CdTe
Babaev N. A. , Bagaev V. S. , Garin F. V. , Kochemasov A. V. , Paramonov L V., Poyarkov A. G. , Salashchenko N. N., Stopachinskii V. B.
An increase in the binding energy of a free exciton is observed in CdTe thin films. This increase results from a decrease in the screening of the Coulomb interaction in electron-hole pairs. The observed change in the exciton binding energy agrees satisfactorily with theoretical predictions.