Pd-doped ZnO nanostructured films for multifunctional applications

Abstract

In this work Pd-doped ZnO (ZnO:Pd) nanostructured films were deposited on pre-cleaned glass substrates via a synthesis from chemical solutions (SCS) approach from aqueous baths. The post-rowth thermal annealing, namely thermal annealing (TA) and rapid thermal annealing (RTA) were applied in order to tune the sensing properties of such nanostructured films. The UV sensing investigations showed decreased performances compared to undoped films. However, the gas sensing measurements showed excellent H2 response at near-room temperature for gas concentration of 1000 ppm.