单分散CdSe1-xSx（x=0-1）纳米晶的形貌可控合成及表征

In this paper, High temperature organic phase method was applied to controllably synthesize monodisperse CdSe1-xSx(x=0-1) nanocrystals (NCs) with tetrahedral morphology. The diameter of the as-prepared CdSe1-xSx NCs is about 5 nm through tailoring the concentration of the addition of selenium and sulfur precursor. The morphologies of the NCs were confirmed by TEM and the optical properties were verified through UV-Vis-NIR absorption spectra. Typically, CdS NCs were characterized via HRTEM, STEM and XRD. Photocurrent response was employed to characterize the properties of the CdSe1-xSx NCs. As it indicates, the photocurrent response of CdSe1-xSx NCs film enhanced gradually with the increase of the selenium precursor.