 Carbon dots, CDs, which are composed of sp3 hybridized carbon cores with partially sp2 hybridized carbon atoms, have been shown to emit full spectrum colors when heated. This makes them ideal for use in white-light emitting diodes, LEDs. A new method has been developed to produce these CDs in a single reaction system, allowing for easy control of the reaction conditions. Furthermore, this method allows for the production of CDs with different colors depending on the reaction conditions. This opens up the possibility of creating LEDs with multiple colors. This article was authored by Boyoung Wang, Jinkoo and Yoo, Liji Sway, and others.