Figure 3: Ultrafast spectral changes during reduction.
From: Revealing the ultrafast process behind the photoreduction of graphene oxide
Transient differential absorption spectroscopy of a 2 mg ml−1 graphene oxide dispersion in water with a 266 nm pump and white light probe (590–760 nm). Time delays up to (a) 10 ps and (b) 1 ns shown. (c) Sketch of the processes resulting in the transient differential absorption spectra. The contribution of reduction overlaps with the rising transient absorption signal of (W) water with contributions from (rGO) reduced graphene oxide.
