The dependences of the photoluminescence of two types of carbon dots synthesized by the hydrothermal method and the Hummers method on the characteristics of various solvents were achieved. As a result of the analysis of the obtained photoluminescence spectra of suspensions of both types of carbon dots in all used solvents, a significant effect of the acidity, basicity, and relative polarity of the solvent on the intensity and Stokes shift of the photoluminescence of carbon dots was revealed. The results obtained are explained by the processes of change in the chemical and electrical properties of carbon dots when interacting with media with different physicochemical characteristics.
$^1$Department of Quantum Electronics, Faculty of Physics, Lomonosov Moscow State University
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