One-pot synthesis in liquid paraffin of ternary alloy CdSexS1−x nanocrystals with fluorescence emission covering entire visible region

The ternary alloy CdSexS1−x nanocrystals are synthesized in liquid paraffin via one-pot method. The fluorescence emission of the nanocrystals can be altered from violet to green by adjusting the ratio of Se to S without particle size change. By applying subsequent surface modification of the nanocrystals with amine, the fluorescence emission from yellow to red is successfully obtained that is achieved from trap emission enhancement. As a result, the combination of these two approaches makes the fluorescence emission of the ternary alloy CdSexS1−x nanocrystals covering entire visible region from violet to red while their sizes are similar and keep constant.