Characterization of metal oxide gas sensors via optical techniques

Metal Oxide Nanowire Gas Sensors

Monocrystalline metal oxide nanowires have emerged as new building blocks for a wide range of devices and applications owing to their unique properties directly derived from their size, crystalline structure and well-defi ned geometry. In particular, these nanomaterials have been successfully integrated in proof-of-concept gas sensors with high sensitivity and stable characteristics, giving ris...

Nano - crystalline metal oxide gas sensors

The research and development of solid state gas sensors with low cost and reduced size for the monitoring of the gaseous species is rapidly increasing in the last years [1]. Many technological approaches have been proposed regarding the different materials and the detecting principles. The currently available sensors use several transduction principles: thermal, mass, potentiometric, amperometr...

Metal-Oxide Nanowires for Gas Sensors

In past decades, gas sensors based on the metal oxide semiconductors (MOSs) have been studied in diverse field for wide applications. A gas sensor is a device that can be used to detect various gas such as ethanol, LPG, CO2 and CO gases etc. The gas sensors based on MOSs such as SnO2, TiO2, WO3, ZnO, Fe2O3, and In2O3 have an important role in environmental monitor‐ ing, chemical process control...

Simulation and fabrication of microhotplates for metal oxide gas sensors

Semiconducting Metal Oxide Based Sensors for Selective Gas Pollutant Detection

A review of some papers published in the last fifty years that focus on the semiconducting metal oxide (SMO) based sensors for the selective and sensitive detection of various environmental pollutants is presented.