Multicolor Emitting N-Doped Carbon Dots Derived from Ascorbic Acid and Phenylenediamine Precursors
Linlin Wang, Won Mook Choi, Jin Suk Chung, Seung Hyun Hur
Abstract
In this research, we report the green, blue, and orange color emitting N-doped carbon dots (CDs), which are being synthesized from ascorbic acid and o-/m-/p-phenylenediamine (o-PDA, m-PDA, and p-PDA, respectively). The effects of the solvent polarity and solution pH on the PL emission properties of the as-synthesized CDs have been systematically investigated. It has been observed that the PL emission of the as-synthesized CDs decreases with the increase in solvent polarity due to the greater agglomeration. The surface charge of CDs also shows prominent effects on the pH-dependent PL emission properties.
Topics & Concepts
NanochemistryAscorbic acidMaterials scienceSolventDopingPolarity (international relations)Aggregation-induced emissionCarbon fibersPhotochemistryChemical engineeringNanotechnologyFluorescenceChemistryOrganic chemistryComposite numberOptoelectronicsOpticsBiochemistryComposite materialCellEngineeringPhysicsFood scienceCarbon and Quantum Dots ApplicationsNanocluster Synthesis and ApplicationsLuminescence and Fluorescent Materials