4.7 Article

Full-colour carbon dots: from energy-efficient synthesis to concentration-dependent photoluminescence properties

Journal

CHEMICAL COMMUNICATIONS
Volume 53, Issue 21, Pages 3074-3077

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc00461c

Keywords

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Funding

  1. National Natural Science Foundation of China [U1510125, 51272301, 51502270]
  2. Shanxi Province Science Foundation for Youths [2014021008]
  3. Specialized Research Fund for Sanjin Scholars Program of Shanxi Province
  4. North University of China Fund for Distinguished Young Scholars

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We present a facile approach, without the need for external heating and any additional energy input, to produce fluorescent carbon dots (CDs) inexpensively and on a large scale. Fluorescence emission wavelengths from the obtained CDs shift gradually from 630 to 400 nm with reduction in their concentration in solution. This work offers a novel avenue for tuning band gaps in CDs and endowing them with potential for various applications.

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