Abstract

Transparent conducting fluorine-doped tin oxide (FTO) thin films were prepared onto glass at low substrate temperature by an advanced spray pyrolysis technique, with stannic chloride and ammonium fluoride as precursors. The films were grown at different substrate temperatures varied in the range of 250–340°C. The effect of the substrate temperature on the structural, morphological, and hydrogen sulphide (H 2 S) gas sensing properties of the films has been investigated. XRD studies confirm tetragonal crystal structure of the films and all the films are found to be polycrystalline in nature. The FTO film prepared at 250°C exhibits the maximum sensitivity (∼ 10 %) at 250°C operating temperature. Further, the effect of palladium sensitization on the H2S sensing properties of the 250°C sample has been studied and an enhanced sensing response was obtained.

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 call

Disclaimer: 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.