Study of the CO and humidity interference in La doped tin oxide CO2 gas sensor

Metal oxide semiconductor gas sensors in environmental monitoring

“…The percentage of lanthanum in the films was found to be critical in optimising the gas response (Figure 15). Marsal et al [60] also reported a sensor based on LaOCl that showed an ability to detect CO 2 . screen-printing produced a film that showed a response of 3.4 to 2,000 ppm CO 2 .…”

Structural and optoelectronic properties of antimony incorporated tin oxide thin films

“…The Sb doped tin oxide (ATO) thin films are considered as an alternative to ITO and FTO due to its excellent heat resistivity [4]. Many dopants, such as W [5], Al [6], In [7], F [8], Si [9], La [10], Ni [11], Pt [12], Vd [13], Pd [14], Fe [15] and Sb [16] have been used to improve the electrical properties of tin oxide thin films. But in case of Sb doping, antimony presents a real challenge to electronic structure calculation in order to explain its optoelectronic properties [17].…”

A Novel Mesoporous CaO‐Loaded In2O3 Material for CO2 Sensing

“…The most common type of CO 2 sensor so far reported is a potentiometric device combining a solid electrolyte with an auxiliary phase of carbonates (Li 2 CO 3 -BaCO 3 or CaCO 3 ). [1,2] However, chemoresistive gas sensors (e.g., indium tin oxide (ITO), [3] SnO 2 , [4,5] LaOCl [6] and BaTiO 3 [7] ) are also applicable, since they offer interesting advantages such as low-cost, easy implementation and high-reliability. 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 .…”