Screen-Printed Tin-Doped Indium Oxide Films for Low Temperature and Fast Response Methanol Gas Sensing

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

“…The use of ITO as a sensitive layer for gas sensor applications was demonstrated in many works [6][7][8].…”

“…The greater part of these studies was made in DC measurements. While direct current DC measurements give information on the global sensor response, AC impedance study is a powerful tool to understand the nature of the conduction processes and the mechanism of gas/solid interactions, as the processes of different time constants can be distinguished by varying the frequency [8,16]. Consequently, the objective of this work is to study the effect of temperature and NO 2 adsorption on the dielectric properties of ITO.…”

Screen printed In2O3-SnO2nanocomposite: Structural and morphological properties and application for NO2detection

“…The In 2 O 3 -SnO 2 (35 wt% Sn) nanocomposite has spherical-like grains with an average size of about 14 -18 nm ( Fig. 2(b)), whereas an average size of about 12 nm was observed for In 2 O 3 -SnO 2 (10 wt% Sn) [6]. Inter-planar spacing of about 0.29 nm and 0.25 nm are found, which corresponds to the (222) and (400) plans of In 2 O 3 , respectively; hence, no evidence crystalline SnO 2 phase was detected.…”

Aluminum-mesoporous silicon coplanar type structure for methanol gas sensing

“…Eq. (5) was solved by considering values of different parameters summarized in Table 1 and by considering values of refractive index of silicon from [13] and refractive index of MeOH from [14]. A quantitative model applying the EMT may take into account the effective refractive index change of the meso-PSL.…”