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Issue 42, 2016
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Synthesis of amphiphilic carbon quantum dots with phosphorescence properties and their multifunctional applications

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Abstract

Carbon quantum dots (CQDs) have been widely studied; however, nearly all CQDs can only be used either in aqueous phase or oil phase. There is much less attention on amphiphilic CQDs (ACDs) and their potential applications. In this work, ACDs were successfully prepared by a one-pot hydrothermal treatment of oil soluble N-doped CQDs. The obtained ACDs exhibit favorable aqueous solubility, high photoluminescence (PL) quantum yields, and excellent photostability, showing great potential in Fe3+ ion detection. Interestingly, up-conversion PL of the ACDs is also observed and successfully applied in two-photon cell imaging. In addition, the obtained ACDs can be homogeneously dispersed into polyvinyl alcohol (PVA) and polyurethane matrices. Importantly, a room temperature phosphorescence phenomenon can be detected in these ACD-based composites and the ACD/PVA composite films show an ultralong phosphorescence lifetime (450 ms), which expands the scope of research and applications of CQDs.

Graphical abstract: Synthesis of amphiphilic carbon quantum dots with phosphorescence properties and their multifunctional applications

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Publication details

The article was received on 18 Jul 2016, accepted on 03 Oct 2016 and first published on 03 Oct 2016


Article type: Paper
DOI: 10.1039/C6TC03027K
Citation: J. Mater. Chem. C, 2016,4, 10146-10153
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    Synthesis of amphiphilic carbon quantum dots with phosphorescence properties and their multifunctional applications

    J. Tan, J. Zhang, W. Li, L. Zhang and D. Yue, J. Mater. Chem. C, 2016, 4, 10146
    DOI: 10.1039/C6TC03027K

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