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        One-step hydrothermal synthesis of fluorescence carbon quantum dots with high product yield and quantum yield

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        Chen_Accepted_Version_YC.pdf (PDF, 1Mb)
        Author
        Yanting Xie, Yanting
        Zheng, Jingxia
        Wang, Yaling
        Wang, Junli
        Yang, Yongzhen
        Liu, Xuguang
        Chen, Yong
        Attention
        2299/20926
        Abstract
        A one-step hydrothermal synthesis of nitrogen and silicon co-doped fluorescence carbon quantum dots (N,Si-CQDs), from citric acid monohydrate and silane coupling agent KH-792 with a high product yield (PY) of 52.56% and high quantum yield (QY) of 97.32%, was developed. This greatly improves both the PY and QY of CQDs and provides a new approach for a large-scale production of high-quality CQDs. Furthermore, N,Si-CQDs were employed as phosphors without dispersants to fabricate white light-emitting diodes (WLEDs) with the color coordinates at (0.29, 0.32). It is suggested that N,Si-CQDs have great potential as promising fluorescent materials to be applied in WLEDs.
        Publication date
        2019-01-02
        Published in
        Nanotechnology
        Published version
        https://doi.org/10.1088/1361-6528/aaf3fb
        Other links
        http://hdl.handle.net/2299/20926
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