Copper-doped SnO2 thin films for PH3 detection

Development of detection methods for the diagnosis and analysis of highly toxic metal phosphides: A comprehensive and critical review

“…The Eu 3+ ions can produce a red emission at 590-750 nm and blue emission presented around 320-500 nm. 106 The fluorescence changes in the presence of Pi can be observed by the naked eye under UV light lamp illumination at 302 nm (Figure 2(A)). The introduced MOF with oxygenated and nitrous functional groups was a potent hydrogen-binding receptor for Pi anion.…”

“…In design of this kind of sensors, a heater is incorporated because of the need to impressive temperature for increase in the reactions rate. 105 Ratcheva et al 106 designed a gas sensor element by spraying ethyl alcohol solutions of CuCl 2 and SnCl 4 (molar ratio 1: 4) onto the hollow quartz cylinders as substrate being heated at 480°C. After deposition process, the sample was treated thermally at 950 • C and then cooled at room temperature.…”

“…Ratcheva et al 106 . designed a gas sensor element by spraying ethyl alcohol solutions of CuCl 2 and SnCl 4 (molar ratio 1: 4) onto the hollow quartz cylinders as substrate being heated at 480℃.…”

“…Schematic illustration of resistive (A‐C) and electrochemical (D,E) gas sensors designed for detection of PH 3 using: (A) Cu‐doped SnO 2 film: (1) silver electrode, (2) gas sensitivity layer, (3) quartz cylinder, (4) sealed stopper, (5) heater. “Reprinted from Thin Solid Films, Vol 217, Ratcheva et al, Copper‐doped SnO 2 thin films for PH 3 detection, Pages 187–192, Copyright 1992, with permission from Elsevier” 106 ; (B) Zr‐Pd‐doped SnO 2 film. “Reprinted from Sensors and Actuators B, Vol 21, Ratcheva, PH 3 detection by SnO 2 ‐ZrO 2 thin films, Pages 199–204, Copyright 1994, with permission from Elsevier” 108 ; (C) Au x O‐deposited on silicon microporous layer.…”

Growth, Characterization and Technological Applications of Semiconductor SnO<SUB>2</SUB> Nanotubes and In<SUB>2</SUB>O<SUB>3</SUB> Nanowires

“…Due to the small surface areas of crystalline powders and thin film, those conventional sensors have limited sensitivity. [9][10][11] Recently nanostructured materials have been widely developed for sensor applications. [12][13][14][15] Here, we report the preparation of tin (IV) oxide (SnO 2 ) nanotubes and indium oxide nanowires for gas sensor applications.…”