Intermediate aminophenol enables hectogram-scale synthesis of highly bright red carbon quantum dots under ambient conditions
Xiangyong Meng, Maorong Wang, Jishuai Lin, Lihua Wang, Jin Liu, Song Yang, Qiang Jing, Haiguang Zhao
Abstract
-PDA in an acid environment to form R-C-dots. The obtained R-C-dots had a photoluminescence quantum yield of up to 33.26% and excellent two-photon fluorescence properties. A white light-emitting diode (WLED) based on R-C-dots as the red phosphor exhibited standard white light CIE color coordinates of (0.33, 0.33) with a correlated color temperature of 5342 K and a high color rendering index (CRI) of 94.5. The obtained rendering index is the highest value among WLEDs with color coordinates of (0.33, 0.33) based on C-dots. This work provides a new perspective for the controllable large-scale synthesis of red C-dots.
Topics & Concepts
Quantum dotCarbon fibersYield (engineering)Carbon quantum dotsNanotechnologyQuantum yieldMaterials scienceScale (ratio)ChemistryChemical engineeringPhotochemistryPhysicsOpticsQuantum mechanicsMetallurgyEngineeringComposite materialFluorescenceComposite numberCarbon and Quantum Dots ApplicationsNanocluster Synthesis and ApplicationsQuantum Dots Synthesis And Properties