Surfactant effects on optical absorption spectra of iron phthalocyanine nanoparticles in water

Iron phthalocyanine (FePc) nanoparticles aqueous colloidal solutions were prepared by laser ablation in water, including surfactants. The Q band of FePc can be shifted to the longer or shorter wavelength widely by adjusting the concentration of surfactants on the basis of critical micelle concentration (CMC) with laser irradiation. The change in micelle structure of the surfactants surrounding the FePc nanoparticles may be the main reason for the shifting of the Q band.