The photoluminescence properties of CdSe QDs prepared by the one-pot process.

CdSe quatum dots (QDs) have been prepared through the one-pot process. Ultraviolet-visible (UV-vis) absorption and emission spectra were used to characterize the resulting samples. The effect of the synthesis time and temperature on the optical properties of the CdSe QDs samples have been studied. The maximum of the absorption spectra of the CdSe QDs samples is 486 nm and the emission spectra is 528 nm. The emission intensity of the CdSe QDs samples increases, and the emission maximum presents a red shift with increasing reaction time.