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Synthesis and Sensor Characteristics of Nanoscale Thin Films in the In 2 O 3 –SnO 2 and Y 2 O 3 –TbO x (CeO x ) Systems
Inorganic Materials: Applied Research Pub Date : 2020-04-13 , DOI: 10.1134/s2075113320020033 M. Yu. Arsent’ev , M. V. Kalinina , N. Yu. Koval’ko , T. L. Simonenko , L. V. Morozova , P. A. Tikhonov , O. A. Shilova
中文翻译:
In 2 O 3 –SnO 2和Y 2 O 3 –TbO x(CeO x)系统中纳米薄膜的合成及传感器特性
更新日期:2020-04-13
Inorganic Materials: Applied Research Pub Date : 2020-04-13 , DOI: 10.1134/s2075113320020033 M. Yu. Arsent’ev , M. V. Kalinina , N. Yu. Koval’ko , T. L. Simonenko , L. V. Morozova , P. A. Tikhonov , O. A. Shilova
Abstract
(In2O3)0.95(SnO2)0.05, (TbOх)0.50(Y2O3)0.50, and (CeO2)0.80(Y2O3)0.20 single-phase cubic solid solution xerogels and nanocrystalline powders have been synthesized via coprecipitation of hydroxides. Using these powders as precursors, nanoscale film electroconductive materials on a corundum substrate have been produced by screen printing. The highest speed of sensor response to ozone is attributed to In0.95Sn0.05O1.5 films, reaching 8–10 s at a temperature of 473 K. (TbOх)0.50(Y2O3)0.50 thin film is found to be sensitive to changes in the concentrations of (CO + CO2) (the sensitivity coefficient S = 25.11) and ozone (S = 3.16–7.94). (CeO2)0.80(Y2O3)0.20 film exhibits a sensor response to (CO + CO2) (S = 3.10). This study opens up the prospects of using the obtained nanopowders and relevant thin films as materials for resistive gas sensors operating at oxygen pressures of 103–104 Pa.中文翻译:
In 2 O 3 –SnO 2和Y 2 O 3 –TbO x(CeO x)系统中纳米薄膜的合成及传感器特性