When looking at longer delay times (up to 100 ps, Figure ), a clear trend in the magnitude of the negative signal is observed: G displays negligible signal at 80 ps, while for the AG films, the quasi-stationary signal increases as O/C increases from 0.3 to 0.75.
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Impact of Morphology and Composition of Graphene Aerosol-Gel Particles in Thin Films on Ultrafast Carrier Dynamics Studied via Transient Absorption Spectroscopy.
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