Materials: Colourful clay - Nature Materials:

Materials: Colourful clay

Nature 454, 140 (2008). doi:10.1038/454140c

Adv. Mater. doi:10.1002/adma.200702544 (2008)Nanocrystals made of
semiconducting materials glow different colours depending on their
size. Researchers are interested in using them in electronic devices,
but first need to figure out how to attach them to more conventional
silicon components.