A highly sensitive oxygen sensor operating at room temperature based on platinum-doped In(2)O(3) nanocrystals

Semiconducting In(2)O(3) nanocrystals, synthesised via a nonaqueous sol-gel method and doped with 1 wt% of platinum, have shown to possess a unique high sensitivity to oxygen at room temperature (RT). Consequently, a Pt/In(2)O(3)-based oxygen sensor for room temperature operation has been developed showing higher performance compared to the state-of-the-art devices.