Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 156, Issue 2, Pages 954-960Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.03.013
Keywords
CdIn(2)O(4); Thin films; Spray pyrolysis; Sensor; LPG sensor
Funding
- Department of Science and Technology, New Delhi [SR/S2/CMP-82/2006]
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Nanocrystalline cadmium indium oxide (CdIn(2)O(4)) thin films of different thicknesses were deposited by chemical spray pyrolysis technique and utilized as a liquefied petroleum gas (LPG) sensors. These CdIn(2)O(4) films were characterized for their structural and morphological properties by means of X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The dependence of the LPG response on the operating temperature, LPG concentration and CdIn(2)O(4) film thickness were investigated. The results showed that the phase structure and the LPG sensing properties changes with the different thicknesses. The maximum LPG response of 46% at the operation temperature of 673 K was achieved for the CdIn(2)O(4) film of thickness of 695 nm. The CdIn(2)O(4) thin films exhibited good response and rapid response/recovery characteristics to LPG. (C) 2011 Elsevier B.V. All rights reserved.
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