Understanding and manipulating luminescence in carbon nanodots
Understanding and manipulating luminescence in carbon nanodots
复制标题
理解和操纵碳纳米点的发光
DOI:
10.1016/j.carbon.2017.10.013
复制
发表时间:
2018
期刊:
影响因子:
10.9
通讯作者:
S.J. Xu
中科院分区:
文献类型:
--
作者:
Z.C. Su;H.G. Ye;Z. Xiong;Q. Lou;Z. Zhang;F. Tang;J.Y. Tang;J.Y. Dai;C.X. Shan;S.J. Xu
Carbon nanodots (CDs), a new star in the carbon nanomaterials family, have been demonstrated to show strong luminescence, and can meet the needs of large-scale production for biological and medical applications due to their low toxicity and biocompatibility. However, their luminescence mechanisms, such as color tuning and strong excitation-dependent luminescence, are still unclear. Herein, we present a state-of-the-art understanding and manipulating luminescence in CDs by changing their environmental states and using multiple spectroscopic methods as well as the first-principles theoretical calculations. Our study reveals that the edge-carbon atoms and incorporated nitrogen atoms play critical roles in the luminescence mechanisms of CDs, and thus paves the way for manipulation of luminescence in CDs.
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