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Quantum-Sized Carbon Dots for Bright and Colorful Photoluminescence

Journal of the American Chemical Society · 2006 · Vol. 128(24) · pp. 7756–7757

Ya‐Ping Sun✉(Clemson University)Bing Zhou(Clemson University)Yi Lin(Clemson University)Wei Wang(Clemson University)K. A. Shiral Fernando(Clemson University)Pankaj Pathak(Clemson University)Mohammed J. Meziani(Clemson University)Barbara A. Harruff(Clemson University)Xin Wang(Clemson University)Haifang Wang(Clemson University)Pengju G. Luo(Clemson University)Hua Yang(Clemson University)Muhammet E. Köse(Clemson University)Bailin Chen(Clemson University)L. Monica Veca(Clemson University)Su‐Yuan Xie(Clemson University)

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Abstract

We report that nanoscale carbon particles (carbon dots) upon simple surface passivation are strongly photoluminescent in both solution and the solid state. The luminescence emission of the carbon dots is stable against photobleaching, and there is no blinking effect. These strongly emissive carbon dots may find applications similar to or beyond those of their widely pursued silicon counterparts.

Carbon and Quantum Dots Applications Quantum Dots Synthesis And Properties Advanced biosensing and bioanalysis techniquesPhotoluminescenceQuantum dotPhotobleachingChemistryCarbon fibersPassivationLuminescenceNanotechnologySiliconNanoscopic scale

MeSH terms

CarbonFluorescent DyesPhotochemistryPolyethylene GlycolsSemiconductorsSpectrum AnalysisMicroscopy, Atomic ForceNanotechnologyNanotubes, CarbonQuantum DotsLuminescence

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