Tungsten Trioxide Nanowire Gas Sensor
Tungsten trioxide is one transition metal oxide among a lot of metal oxide, belonging to the n-type semiconductor with its very widespread application. As a semiconductor gas sensor, tungsten trioxide has been considered one of the most promising new oxide sensitive materials to detect NO x , SO x , NH 3 , H 2 S, etc.. Since carbon nanotubes have been discovered in 1991, the more innovative electrical, magnetic, optical, thermal and other physical and chemical properties of one-dimensional nano-materials rendered have caused more and more attention, and showing its value and broad application prospects. While, compared to the traditional tungsten oxide material, tungsten trioxide nanowire because of its greater surface area has broad application prospects on the fields of gas sensors, electroluminescence, photoluminescence, conductivity electrode and photocatalysis. In addition, the tungsten oxide nanowires also have a higher surface activity and stronger adsorption capacity, th...