Metal oxide semiconductor gas sensors operating under UV irradiation have been validated
for detection of variety of chemicals in wide ranges of concentrations at room temperature …

Nanoscale inorganic materials such as quantum dots (0-dimensional) and one-dimensional
(1D) structures, such as nanowires, nanobelts and nanotubes, have gained tremendous …

Ionosorbed oxygen is the key player in reactions on metal-oxide surfaces. This is particularly
evident for chemiresistive gas sensors, which operate by modulating the conductivity of …

The room-temperature detection of NO 2 by metal oxide nanostructures has been a long-
term hot topic. The utilization of UV illumination and introducing surface oxygen vacancies …

Metal ions are commonly used as activators to improve the anionic collector flotation of
oxide minerals with an accepted activation mechanism that the prior addition of metal ions …

Recently, special attention has been paid to the syntheses of micro/nanostructured
crystallites with high‐energy crystal facets, because high‐energy crystal surfaces usually …

We demonstrate that illuminating metal oxide gas sensors with ultra-violet light is a viable
alternative not only to activate but also to modulate their response towards oxidizing gases …

SnO2 is a semiconducting metal oxide that is broadly employed as the active sensing
material in chemiresitive gas sensors. Recent studies demonstrated the capability of SnO2 …

SnO2 nanocrystals were prepared by injecting a hydrolyzed methanol solution of SnCl4 into
a tetradecene solution of dodecylamine. The resulting materials were annealed at 500° C …

Dissipated power in metal oxide nanowires (r NW< 45 nm) often causes important self-
heating effects and as a result, undesired aging and failure of the devices. Nevertheless, this …