Nonlinear optical and optical limiting properties of graphene hybrids covalently functionalized by phthalocyanine

- The nonlinear optical properties of three graphene hybrid materials are studied.
- In nanosecond regime, RGO-ZnPc shows better optical limiting properties.
- In femtosecond regime, GO-ZnPc shows better nonlinear optical properties.
- The interaction between graphene and ZnPc causes optical nonlinearity enhancement.