Nanocomposite synthesis and photoluminescence properties of MeV Au-ion beam modified Ni thin films

- Nanocomposite can be controllably synthesized from Ni thin films on silica by simply adding required fluence of MeV energy Au ions into the matrix.
- Energy transfer to Ni thin films causes local melting and diffusion into silica matrix and formation of nanocomposites.
- Ion implantation can lead to metal incorporation and nucleation of nanoparticles in silica, which gives rise to photoluminescence bands in visible wavelength region.
- The intensity of the photoluminescence peak can be tuned by creating specific amount of Ni and Au incorporation via ion implantation, which might be useful for optoelectronic applications.