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Electrochemical Tuning of Luminescent Carbon Nanodots: From Preparation to Luminescence Mechanism

Authors

  • Lei Bao,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Zhi-Ling Zhang,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Zhi-Quan Tian,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Li Zhang,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Cui Liu,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Yi Lin,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Baoping Qi,

    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
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  • Dai-Wen Pang

    Corresponding author
    1. Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China
    • Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Research Center for Nanobiology and Nanomedicine (MOE 985 Innovative Platform), State Key Laboratory of Virology and Wuhan Institute of Biotechnology, Wuhan University, Wuhan, 430072, P.R.China.
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Abstract

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The size of C-nanodots can be electrochemically tuned by changing the applied potential during their preparation. The higher the applied potential, the smaller the resulting C-nanodots. Moreover, the surface oxidation degree of the C-nanodots can also be electrochemically tuned. The red-shift of emission independent of the size provides an insight into the luminescence mechanism of C-nanodots.

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