Nanostructured Pt-doped Tin Oxide Films

Nanostructured Pt-doped SnO2 thin films are obtained by a sol-gel route using tetra(tert-butoxy)tin(IV) and bis(acetylacetonato)platinum(II) as precursors. Acetylacetone was added as a chelating agent to control the hydrolysis and condensation of tin alkoxide and, consequently, the gelation rate. This procedure allows obtaining a sol phase viscosity suitable for the spin-coating process.