Ink-jet printing of a TiO2–10%ZrO2 thin film for oxygen detection using a solution of metal alkoxoacetylacetonates

Highlights: • Zirconium and titanium alkoxyacetylacetonates solution was obtained. • The obtained solution was used as a functional ink for inkjet-printing of TiO₂-ZrO₂ • TiO₂-ZrO₂ thin films were applied, the anatase particle size was 10–11 nm (SEM). • Thin film show high selective response on O2 at operating temperature 350–450 °C -- Abstract: A solution of metal alkoxoacetylacetonates in isoamyl alcohol was used as a functional ink for ink-jet printing of TiO₂–10%ZrO₂ thin nanostructured films. It is shown that the anatase crystal lattice is formed during heat treatment of xerogel thin films in air at a temperature of 500 °C. According to the scanning electron microscopy, the particle size of the resulting films was 10–11 nm. The effect of the number of TiO₂-ZrO₂ deposited layers on resulting 2D-nanomaterial sensitivity to oxygen and other analyte gases (H₂, CH₄ and CO) at temperatures of 400 and 450 °C is shown.