AUTHOR=Saruhan Bilge , Lontio Fomekong Roussin , Nahirniak Svitlana 

TITLE=Review: Influences of Semiconductor Metal Oxide Properties on Gas Sensing Characteristics

JOURNAL=Frontiers in Sensors

VOLUME=2

YEAR=2021

URL=https://www.frontiersin.org/journals/sensors/articles/10.3389/fsens.2021.657931

DOI=10.3389/fsens.2021.657931

ISSN=2673-5067

ABSTRACT=<p>Semiconductor metal oxides (SMOxs) are widely used in gas sensors due to their excellent sensing properties, abundance, and ease of manufacture. The best examples of these sensing materials are SnO<sub>2</sub> and TiO<sub>2</sub> that have wide band gap and offer unique set of functional properties; the most important of which are electrical conductivity and high surface reactivity. There has been a constant development of SMOx sensor materials in the literature that has been accompanied by the improvement of their gas-sensitive properties for the gas detection. This review is dedicated to compiling of these efforts in order to mark the achievements in this area. The main material-specific aspects that strongly affect the gas sensing properties and can be controlled by the synthesis method are morphology/nanostructuring and dopants to vary crystallographic structure of MOx sensing material.</p>