Enhanced humidity sensing properties of TaO and ITO doped rutile-TiO porous ceramics.

In this study, we investigated the humidity sensing properties of TiO-based ceramics doped with tantalum pentoxide (TaO) and indium tin oxide (ITO). Pure TiO, 1%Ta-doped TiO (1%TTO), 1%ITO-doped TiO (1%ISTO), and 1%(TaO + ITO) co-doped TiO (1%ISTTO) ceramic samples were obtained by sintering at 1200 °C for 3 h. The rutile phase was observed in all samples.