Electrophoretically deposited zinc oxidethick film gas sensor

EPD-deposited ZnO thin films: a review

“…In this sense, the first report on the fabrication of a resistive ZnO gas sensor prepared by EPD was published by HosseinBabaei et al [85]. In it they used AI-Cr-Fe alloy substrates, which were fired at 1000 °C after EPD, forming a native aluminium oxide insulating layer between the ZnO later and the metallic substrate.…”

YBa2Cu3O7−x dispersion in iodine acetone for electrophoretic deposition: Surface charging mechanism in a halogenated organic media

“…Oxides such as ZrO 2 show a zero surface charge in acetone [52,53,61], while other oxides, i.e. ZnO, MgO, SbO, etc., behave as positive particles depositing in the cathode [62][63][64][65][66][67]. In later cases, electron transfer occurs from solid to liquid, having the solvent a lower donicity character than considered oxides.…”

Utilizing the response patterns of a temperature modulated chemoresistive gas sensor for gas diagnosis

“…where SSR i means the Steady-State Response level related to the segment i ( i=1, 2,3,4,5), and SSR 0 means the steady-state level before the application of the staircase waveform. SSR values were calculated by averaging 100 samples at the end of each step.…”

“…The number of the training vectors employed for the construction of the feature matrix (X) is 44 = . The feature matrix had the following structure: (3) in which the superscripts m, e, b and a stand for methanol, ethanol, 1-buthanol and acetone, respectively. The subscripts ci, (i=1, 2,…, 11) relate the feature vectors to the 11 concentration levels examined.…”

“…Although chemoresistive gas sensors (CRGSs) [1][2][3] are commonly used for the detection of different contaminations in air due to their high sensitivity, low cost and small size, they generally suffer from the lack of selectivity and response drift [4][5][6]. Among its shortcomings, selectivity can be improved by different techniques.…”