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Issue 44, 2013
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Multicolour light emission from chlorine-doped graphene quantum dots

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Abstract

Multicolour emission is realized in chlorine-doped GQDs (Cl-GQDs) prepared by a facile hydrothermal method using fructose and hydrochloric acid as source materials. The average diameter of a Cl-GQD is about 5.4 nm with 2 at.% Cl. The emission colour of the Cl-GQDs can be tuned successively from blue to white, orange, green and red simply by varying the excitation wavelength between 300 and 600 nm. The multicolour emission from the Cl-GQDs can be attributed to Cl doping, which introduces additional energy levels between C π and C π*. The multicolour Cl-GQDs should find applications in bioimaging and optoelectronic devices.

Graphical abstract: Multicolour light emission from chlorine-doped graphene quantum dots

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Publication details

The article was received on 29 Jul 2013, accepted on 09 Sep 2013 and first published on 10 Sep 2013


Article type: Communication
DOI: 10.1039/C3TC31473A
Citation: J. Mater. Chem. C, 2013,1, 7308-7313
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    Multicolour light emission from chlorine-doped graphene quantum dots

    X. Li, S. P. Lau, L. Tang, R. Ji and P. Yang, J. Mater. Chem. C, 2013, 1, 7308
    DOI: 10.1039/C3TC31473A

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