Growth mechanism of chemically prepared ZnO-SiO sub(2) nanostructures grown on glass and silicon substrates

Different surface morphology of ZnO-SiO sub(2) has been successfully grown on glass and silicon substrates using chemical bath deposition method. The dependence on the substrates used on the morphology of ZnO-SiO sub(2) was investigated. The morphology of ZnO- SiO sub(2) on glass substrate was flake-like in form and changes to protruding hemispherical structures when grown on silicon substrate. Elemental composition analysis verified the presence of ZnO and SiO sub(2). Infrared characteristics showed an absorption band for the binding of ZnO and SiO sub(2) and revealed the presence of zinc complexes. We proposed a mechanism on the growth of ZnO-SiO sub(2) on glass and silicon substrate using low temperature deposition technique.