Optical Nonlinear Refractive Index of Laser-Ablated Gold Nanoparticles Graphene Oxide Composite

Table 1

The FT-IR peaks for GO and Au-NPs/GO nanocomposite.

GO	Au-NPs/GO	Definition of peaks
—	455	Au-NPs
771	772	Aromatic C–H
—	1163	Vibration band of COOH
1219	1221	C–O–C stretching
1368	1374	C–OH stretching
—	1458	OH deformation vibration of C–O stretching
2856	2856	C–H stretching vibration
2925	2925	C–H stretching vibration