Plate-like p-n heterogeneous NiO/WO3 nanocomposites for high performance room temperature NO2 sensors

Plate-like heterogeneous NiO/WO3 nanocomposites have been successfully prepared by annealing Ni(OH)(2) and H2WO4 in air. These NiO/WO3 nanocomposites have shown excellent sensitivity towards NO2 and ultrafast response at room temperature due to their p-n heterogeneous characteristics.