Gas-sensing characteristics of one-electrode gas sensors based on doped In2O3 ceramics

In2O3:Ga and In2O3:P-based one-electrode gas sensors: Comparative study

“…The possibility of the InPO 4 formation in the In 2 O 3 :P system during the thermal treatment at temperatures of 850 1C has been demonstrated experimentally in [10] on the basis of the Raman scattering spectra analysis. Selevich et al [26] [27][28][29].…”

“…Therefore, the increase of a sensor response and the selectivity improvement are the goals, which many researches try to attain. Usually, to resolve such problems the doping by various additives is being used [1,[8][9][10]. It was found that the addition of active components in the gas sensitive metal oxide results in the alteration of parameters such as surface Fermi level, bonding energy of metal-oxygen on the oxide surface, and amount of adsorption centers.…”

“…One should note that there are only a few references which describe synthesis and study of In 2 O 3 :Ga and In 2 O 3 :P-based ceramics [10][11][12][13][14][15]. It was indicated there that additives such as gallium and phosphorus might be useful for optimization of gas sensing properties of In 2 O 3 -based ceramics.…”

A Novel Mesoporous CaO‐Loaded In2O3 Material for CO2 Sensing

“…Recent research has shown that indium oxide is a promising material for gas-sensor applications, [8][9][10][11] since it displays high sensitivity to both oxidizing and reducing gases: NO 2 , O 3 , Cl 2 , [12] CO, CH 4 , H 2 , and C 2 H 4 . [13] While sensing of the aforementioned gases has been the object of several investigations, the use of In 2 O 3 for CO 2 detection has not been thoroughly investigated. [14] A great attention has been recently paid to the development of new material "architectures" at the nano-scale.…”

Facile synthesis of single crystalline SnO2 nanowires

“…It was found that the charge carrier concentration on the surface of metal-oxide semiconductors changes in accordance with the composition of the surrounding atmosphere [4]. Metal-oxide semiconductors such as SnO 2 , TiO 2 , ZnO, In 2 O 3 and WO 3 are popular materials for solid state sensors because of their high response value, fast response, quick recovery, excellent stability and simplicity in fabrication [5][6][7][8][9]. Design and fabrication of metal-oxide semiconductor sensor materials have become one of the most active research fields in recent years.…”