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

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 concent...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017-03, Vol.53 (21), p.3074-3077
Main Authors: Meng, Xun, Chang, Qing, Xue, Chaorui, Yang, Jinlong, Hu, Shengliang
Format: Article
Language:English
Subjects:
Carbon
Energy gaps (solid state)
Fluorescence
Heating
Nanoparticles
Synthesis
Tuning
Wavelengths
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Summary: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.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc00461c