The proposal aims to demonstrate and validate in laboratory the feasibility of efficient and stable colloidal carbon dot - based white light-emitting diodes (CD-WLED). The overall goal of the proposed work is to bring our theoretical and experimental advancements in the use of carbon quantum dots (CDs) with crystalline core and surface functional ligands as electro-active layer in LED devices (starting from TRL-2), to the device-level confirmation of this novel technology (conclude at TRL-4).