Extended Data Fig. 6: Electric-field-dependent SFG spectra of the graphene–D2O interface.
From: Asymmetric response of interfacial water to applied electric fields
a–c, Spectra are shown for the graphene–D2O interface (a), and its decomposition into the \({\chi }_{{\rm{s}}}^{(2)}\) (surface; b) and \({\chi }_{{\rm{S}},{\rm{DL}}}^{(2)}\,\) (bulk; c) contributions. With the bulk contribution known from the literature, the surface contribution is found through a spectral fitting procedure.
