CdTe,Core-shell CdTe/CdS and CdTe/ZnS Quantum Dots:Their Synthesis and Characterization
CdTe,核壳型CdTe/CdS及CdTe/ZnS量子点的合成及表征

Semiconductor CdTe,core-shell CdTe/CdS and CdTe/ZnS nanocrystals(quantum dots;QDs)were prepared in aqueous phase.Investigations of the prepared nanocrystals were performed via scanning tunneling microscope(STM)and fluorescence spectrum(FS),and quantum yields(QYs)was calculated based on the resulting data from FS.Particle size of well dispersed CdTe was evaluated to be ca 3 nm via STM.Some reaction conditions were investigated and discussed to enhance QYs of CdTe/CdS core-shell QDs,such as dependence of Cd2+...