Towards non-blinking colloidal quantum|[nbsp]|dots

One of the obstacles in using nanocrystals as fluorophores is that they tend to blink. This was thought to be a very general feature. Now, very-high-quality core–shell CdSe–CdS nanocrystals showing highly reduced blinking have been grown. The reduced blinking seems to be related to the thickness of the CdS shell and the high quality of the core–shell interfaces.