Abstract
Nanocrystalline cadmium oxide (CdO) thin films were deposited onto glass substrates by a chemical spray pyrolysis method using an aqueous solution of cadmium acetate. These films were characterized for their structural and morphological properties by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The CdO films are oriented along (1 1 1) plane with the cubic crystal structure. These films were utilized in liquefied petroleum gas (LPG) sensors. The dependence of the LPG response on the operating temperature, LPG concentration and CdO film thickness was investigated. The CdO film showed selectivity for LPG over N 2 compared to CO 2 ( S LPG / S N 2 = 11.3 and S LPG / S C O 2 = 1.88 ) . The maximum LPG response of 34.11% for the film of thickness 0.97 μm at gas concentration of 0.16 vol.% at 698 K was achieved. Additionally, the stability of films has been studied.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
