Abstract
Solid-state carbon dots (SCDs) have been widely investigated by scholars owing to their stability, environmental friendliness, and their good optical properties. The current studies on carbon dots (CDs) are mainly focused on the solutions of CDs, while the researches on SCDs are relatively few in comparison. Nowadays, the fabrication and design of high-performance SCDs have attracted much interest. However, due to resonance energy transfer and π-π interactions, CDs undergo aggregation-induced quenching (ACQ) phenomena. This poses an obstacle to the acquisition of SCDs and affects their luminescence performance. Publications of the past 5 years are reviewed on how to suppress the ACQ phenomenon and improve the fluorescence and phosphorescence emission of CDs (Ref. 87) and about the mechanism of achieving the luminescence of SCDs. Then, the applications of SCDs in the fields of luminescent devices, anti-counterfeiting, and detection are outlined. The concluding section analyzes the current challenges faced by SCDs and provides an outlook.
Graphical abstract
Mechanism of photoluminescence from solid state carbon dots
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Funding
The work was supported by the National Natural Science Foundation of China (51678409, 51638011 and 51578375), Tianjin Research Program of Application Foundation and Advanced Technology of China (19JCYBJC19800, 18JCYBJC87500, 15ZCZDSF00880, 18JCYBJC89100) and State Key Laboratory of Separation Membranes and Membrane Processes (Z1-201507).
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Yan, F., Yi, C., Sun, J. et al. Self-quenching-resistant solid-state carbon dots for mechanism and applications. Microchim Acta 188, 412 (2021). https://doi.org/10.1007/s00604-021-05068-6
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DOI: https://doi.org/10.1007/s00604-021-05068-6