The synthesized single- and few-layer graphene oxide quantum dots (GOQDs) with an average size of 3 nm can be dissolved in many solvents. Good photoluminescence (PL) properties based on one- and two-photon absorption can be observed. The treatment with acid and alkali can cause blue- and red-shift phenomena in the PL. The solvent and the excitation wavelength can also affect the PL.
H. Zhao, Y. Wang, L. Zhang and M. Wang, New J. Chem., 2015, 39, 98 DOI: 10.1039/C4NJ01104J
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