Optical properties of fullerite C60 nanostructures in water

Abstract

The colloidal solution of fullerene C60 in water has been investigated by UV-VIS spectroscopy. It is shown that the peculiarities of colloidal solution spectrum are similar to UV-VIS spectrum for solid state C60. The direct and indirect optical transitions were found for this colloidal solution of fullerene. The existence of indirect transitions proves the presence of solid state C60 in water. The influence of IR laser irradiation on the colloidal solution of fullerene in water was also investigated. It is shown that under action of high power laser radiation the red shift of the optical line corresponding to hu↔t1u (HOMO-LUMO) transitions arises. Other transitions are not affected by IR laser.