Sorry, you need to enable JavaScript to visit this website.

On the structural and optical properties of ZnO nanoparticles formed in silica by ion implantation

TitleOn the structural and optical properties of ZnO nanoparticles formed in silica by ion implantation
Publication TypePresentazione a Congresso
Year of Publication2006
AuthorsTagliente, M.A., Massaro M., Mattei G., Mazzoldi P., Pellegrini G., Bello V., and Carbone Daniela
Conference NameMaterials Research Society Symposium Proceedings
Conference LocationSan Francisco, CA
ISBN Number1558998993; 9781558998995
KeywordsAnnealing, Crystalline nanoclusters, Exciton emission, Ion implantation, Nanoparticles, Optical properties, Photo luminescence spectrum, Silica, Thermooxidation, Transmission electron microscopy, X ray diffraction, Zinc oxide
Abstract

Zinc-oxide nanoparticles embedded in silica glass were fabricated by ion implantation of Zn+ ions of 130 keV and up to a dose of 2×1017 ions/cm2, followed by thermal annealing in O2 atmosphere at 800°C and for 1h. Glancing-incidence x-ray diffraction and transmission electron microscopy results show zinc crystalline nanoclusters with an average diameter of 13nm and placed around a R p=70nm, in the as-implanted sample. The thermal oxidation promotes the diffusion of the Zn atoms preferentially towards the surface of the silica where ZnO particles of 65nm in diameter where found and a small diffusion toward the bulk where ZnO clusters of 5nm in diameter were observed. A relatively strong exciton emission peak from the ZnO particles was observed in the photo-luminescence spectrum at 380nm. © 2006 Materials Research Society.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-33947689282&partnerID=40&md5=0fe657e23f81a60bdefea0e0b155cb19
Citation KeyTagliente200645