![Quo Vadis Biogenic Phosphors?](https://www.cs.tum.de/wp-content/uploads/2020/11/whiteleds_teaser.jpg)
Quo Vadis Biogenic Phosphors?
White light-emitting diodes (WLEDs) consist of a blue-light emitting chip that is covered with yellow-emitting inorganic phosphors based on rare-earth or toxic materials that are regulated by a few countries. Indeed, they are one of the most critical bottlenecks when trying to ensure the sustainable development of WLEDs.