Abstract

We report a detailed study on the dissociation of isolated silicon nanoparticles under high energy ion irradiation. Ultra-small (1-10 nm) colloidal silicon nanoparticles (Si NPs) have been synthesized by ablating porous silicon (pSi) in acetone using femtosecond laser pulses. Porous silicon was ablated, considering the fact that it contains a large number of light emitting silicon nanoparticles. The shape and size distribution of Si NPs was investigated by Transmission Electron Microscopy (TEM). The crystallinity of spherical Si NPs was confirmed by Selective Area Electron Diffraction (SAED).

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