Rationally Designed Carbon Nanodots towards Pure White‐Light Emission

We report a rational synthesis of carbon nanodots (CNDs) aimed at tailoring their emission, starting from a reasoned choice of organic precursors. To showcase the potential of this approach in a field such as optoelectronics, we designed experiments aimed at preparing materials that emit across the entire visible spectrum. Specifically, using precursors such as arginine, ethylenediamine, naphthalene dianhydride, and 2,6‐dibromonaphtalene dianhydride, in appropriate ratios, it was possible to obtain pure white‐light (0.33, 0.33; CIE coordinates) emitting carbon nanodots (WCNDs) through a one‐step microwave‐assisted synthesis and facile purification. The characterization and properties of this novel nanomaterial is discussed. White light to lighten up my dots: A rational bottom‐up synthesis of carbon nanodots with tunable emission is reported. By an appropriate choice and ratio of organic chromophores, carbon dots that emit across the entire visible spectrum and, thus, give white light are obtained. The approach to fabricating this novel material, as well as its characterization, is discussed.