Characterization of ZnO-SnO2 thin film composites prepared by pulsed laser deposition

► ZnO-SnO2 composite oxide films with various concentrations of ZnO (1-50 wt%) have been synthesized by pulsed laser deposition. ► Addition of ZnO (above 10 wt%) converts the composite films from crystalline to amorphous. ► The film with 1 wt% ZnO content shows much better optical transparency (∼90%) compared to others. ► The combined TCO property of the composite films improved (marginally) as compared to the pure ones (ZnO or SnO2).