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Concentration-tuned Multicolor Carbon Dots: Microwave-assisted Synthesis, Characterization, Mechanism and Applications

Abstract

A new multicolor carbon dots made from D- fructose and NH4HCO3, which we call it as F-CDs, has been synthesized via a time-saving and energy-saving microwave-assisted method. By just adjusting the concentration, the optimal emission wavelength of F-CDs can be tuned from 404 nm to 583 nm. Further, the sp2 carbon core and abundant functional groups provided the foundation for the concentration-dependent photoluminescent properties. Besides, the relationship between the aggregation process and the concentration-induced photoluminescence mechanism was first fully discussed. And the maintaining of F-CDs’ PL intensity with the increasing of concentration was related to the mechanism similar to the crosslinked enhanced emission (CEE) effect. Finally, the highly stable and biocompatible multicolor F-CDs was successfully applied in fluorescence ink and multicolor bioimaging.

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Supplementary files

Publication details

The article was received on 09 Mar 2019, accepted on 09 May 2019 and first published on 10 May 2019


Article type: Paper
DOI: 10.1039/C9NJ01233H
New J. Chem., 2019, Accepted Manuscript

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    Concentration-tuned Multicolor Carbon Dots: Microwave-assisted Synthesis, Characterization, Mechanism and Applications

    X. Wang, X. Xu, M. Yang, P. Jiang, J. Zhao, F. Jiang and Y. Liu, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ01233H

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