کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5369672 | 1388447 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrostatic spray deposited zinc oxide films for gas sensor applications Electrostatic spray deposited zinc oxide films for gas sensor applications](/preview/png/5369672.png)
In this work, thin films of zinc oxide (ZnO) for gas-sensor applications were deposited on platinum coated alumina substrate, using electrostatic spray deposition (ESD) technique. As precursor solution zinc acetate in ethanol was used. Scanning electron microscopy (SEM) evaluation showed a porous and homogeneous film morphology and the energy dispersive X-ray analysis (EDX) confirmed the composition of the films with no presence of other impurities. The microstructure studied with X-ray diffraction (XRD) and Raman spectroscopy indicated that the ZnO oxide films are crystallized in a hexagonal wurtzite phase. The films showed good sensitivity to 1 ppm nitrogen dioxide (NO2) at 300 °C while a much lower sensitivity to 12 ppm hydrogen sulphide (H2S).
Journal: Applied Surface Science - Volume 253, Issue 18, 15 July 2007, Pages 7483-7489