PL Spectra of Interface States of CdSSe Quantum Dots in Glass
玻璃中半导体CdSSe量子点的界面态发光

The semiconductor CdSSe quantum dots imbedded in glass are studied by means of PL and absorption spectra under temperature of 10K.The experiments are also done under different temperatures.The quantum-size effect is analyzed.The strong PL peaks at 1.84eV and 1.91eV observed in the PL spectra of QDs are attributed to the interface states.The energy positions of these PL peaks do not change with the increase of size of QDs.The analyses of the relationship between the strength of these PL peaks and radius of quantum dots agree with the experimental results.