Red Emissive Carbon Dots: Photoluminescence Mechanism, Modulation and Application Research

被引：0
作者：
Wang H. [1 ]
Xu J. [2 ]
Huang Y.-Q. [1 ]
Zhou H.-L. [1 ]
Fang X.-L. [1 ]
Li H.-J. [1 ]
Wang X.-Y. [1 ]
Yang J.-H. [1 ]
机构：
[1] Material Science and Engineering School, University of Shanghai for Science and Technology, Shanghai
[2] Polymer Chemistry Department, Chemistry Invention Examination Department, Jiangsu Center for Patent Examination Cooperation of The Patent Office of The State Intellectual Property Office, Suzhou
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2020年 / 41卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Carbon dots; Photoluminescence mechanism; Red emission; Synthetic method;
D O I：
10.37188/CJL.20200276
中图分类号：
学科分类号：
摘要：
Due to the advantages of excellent imaging contrast and high spatial resolution, red emissive carbon dots(R-CDs) have attracted intensive attention. However, most of the reported R-CDs exhibited low photoluminescence quantum yield(PL QY), wide half peak-width(FWMH), and excitation-dependence property(excited mainly by blue or green light), which limits practical applications. Therefore, it is of great importance to furtherly elucidate the PL mechanism of R-CDs and achieve excitation-independent PL property as well as high PL QY. In this paper, the PL influencing factors of red emission including the quantum confinement effect, surface states and aggregation behaviors have been explained. Then, the regulatory mechanism of different reaction conditions such as the precursor and reaction reagent is investigated in details. Besides, we have briefly introduced the current applications of R-CDs in the fields of light emitting diodes and bio-imaging. Finally, attempts to realize the state-of-the-art performance of R-CDs is prospected. © 2020, Science Press. All right reserved.
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页码：1579 / 1597
页数：18
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