It’s time to shine for LEDs made using ecofriendly quantum dots
Nature, Published online: 05 March 2025; doi:10.1038/d41586-025-00640-zQLEDs — light-emitting diodes that rely on nanocrystals called quantum dots — are usually made with toxic heavy metals. A strategy has been developed to make QLEDs with a performance comparable to that of commercially available technologies but using a more environmentally friendly alloy of zinc, selenium, tellurium and sulfur, by improving the distribution of the tellurium atoms.

Nature, Published online: 05 March 2025; doi:10.1038/d41586-025-00640-zQLEDs — light-emitting diodes that rely on nanocrystals called quantum dots — are usually made with toxic heavy metals. A strategy has been developed to make QLEDs with a performance comparable to that of commercially available technologies but using a more environmentally friendly alloy of zinc, selenium, tellurium and sulfur, by improving the distribution of the tellurium atoms.