Enhanced response characteristics of SnO2 thin film based NO2 gas sensor integrated with nanoscaled metal oxide clusters

From Nanotechnology to Nanoengineering

“…As an example, the electrical resistivity of single-wall nanotubes has been found to change sensitively on exposure to gaseous ambient containing NO 2 , NH 3 and O 2 . Nanosensors' response is at least an order of magnitude faster than those currently available, and they could be operated at room temperature or at higher temperatures for sensing applications (Lupan et al 2010;Chow et al 2013;Sharma et al 2013).…”

Portable Electrochemical Gas Sensing System with a Paper-Based Enzyme Electrode

“…These sensors often read a change in electrical resistance of a semiconductor film by gas adsorption and have features to enable repeated measuremens with high sensitivity. The semiconductor-based detection principle, however, tends to provide a false result due to a poor selectivity, and have an adverse effect on detection accuracy because of repeated measurements [4][5][6][7].…”

Synthesis of novel RuO2/NaBi(MoO4)2 nanosheets composite and its gas sensing performances towards ethanol

“…Kim et al have given a detailed review about the nanostructure materials and their sensing properties [19]. It is well known that the gas-sensing performances of metal oxides can be improved by reducing grain size, increasing specific surface area and porosity as well as decorating nanocatalysts such as noble metals [28,29], transition metal oxides [30,31] carbon, fullerenes, carbon nanotube [32][33][34], graphene [14,35], and reduced graphene oxide (RGO) [36,37]. Besides of nanostructures and decoration effects, gas sensing properties can also be tuned significantly by the chemical components of the material [38,39].…”