The laser ablation in liquid of carbon-based solid targets is of particular interest thanks to the possibilityof obtaining different carbon allotropes by varying the experimental parameters employed.The ablation of a fullerite target in water using a frequency-doubled Nd:glass laser source with a pulseduration of 250 fs and a frequency repetition rate of 10 Hz is presented. The obtained products have beencharacterized by transmission electron and atomic force microscopies and by X-ray photoelectron andmicro-Raman spectroscopies.During the femtosecond laser ablation, the collapse of fullerene cages has been considered with theconsequent formation of graphene oxide (GO) and its successive hydrogenation. The process of self-assembling in microtube structures of the formed reduced graphene oxide-fullerene composites hasthen been reported
Fullerene-reduced graphene oxide composites obtained by ultrashortlaser ablation of fullerite in water.
DE BONIS, ANGELA;Mariangela Curcio;TEGHIL, Roberto
2015-01-01
Abstract
The laser ablation in liquid of carbon-based solid targets is of particular interest thanks to the possibilityof obtaining different carbon allotropes by varying the experimental parameters employed.The ablation of a fullerite target in water using a frequency-doubled Nd:glass laser source with a pulseduration of 250 fs and a frequency repetition rate of 10 Hz is presented. The obtained products have beencharacterized by transmission electron and atomic force microscopies and by X-ray photoelectron andmicro-Raman spectroscopies.During the femtosecond laser ablation, the collapse of fullerene cages has been considered with theconsequent formation of graphene oxide (GO) and its successive hydrogenation. The process of self-assembling in microtube structures of the formed reduced graphene oxide-fullerene composites hasthen been reportedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
