期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 84, 期 1, 页码 26-32出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(02)00006-0
关键词
TiO2; TiO; WO3; gas sensors
We present some recent trends about research on gas sensors based on semiconducting thin films based on Ti, W, and Mo mixed oxides. The structural, electrical and gas-sensing proper-ties of these films, deposited by rf reactive sputtering from composite targets of W-Mo, Ti-W and Ti-Mo at different abundance, were investigated through electron microscopy and volt-amperometric techniques. All of these layers showed sensing capability toward CO, NO2 ethanol. The thin films obtained were able to detect CO, NO2 and ethanol below the concentration limit for environmental-monitoring and breath-analysis application. (C) 2002 Elsevier Science B.V All rights reserved.
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