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UV-vis-NIR absorption (a), photoluminescence (b), and Raman (c) spectra of FGO, GO suspensions and RGO film.
Transient differential transmission spectra of the FGO and GO suspensions and RGO film as a function of probe delay in degenerate pump-probe experiments at 800 nm: (a) FGO in DMF, (b) RGO film, and (c) GO in DMF. The solid lines are fittings to mono-exponentially decaying functions (FGO and RGO) and tri-exponential response function (GO) convoluted with the cross correlation of the pump and probe pulses.
Open-aperture Z-scan curves of FGO (filled circles) and GO (open circles). The solid lines are theoretical fittings.
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