| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1613114 | Journal of Alloys and Compounds | 2014 | 6 Pages |
Abstract
Nanostructured pure and copper doped zinc oxide thin films were deposited using spray pyrolysis technique and their structural, morphological, optical and ammonia vapour sensing properties were investigated. XRD and FESEM data confirmed the decrease in crystallite size with increase in Cu-dopant concentration. UV-vis spectra revealed the decrease in band gap and transmittance when Cu concentration increased. The Cu-doped films we report have much better performance than those reported so far with a faster response and recovery times of 30 and 14Â s respectively towards sensing 50Â ppm of NH3.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Ganesh Kumar Mani, John Bosco Balaguru Rayappan,