M. Sathya, G. Selvan
A room temperature gas sensor with excellent stability and high response has garnered significant interest due to its importance in life-saving, environmental safety, and medical applications. This research aimed to fabricate zinc oxide (ZnO) and zirconium-doped zinc oxide (Zr:ZnO) thin films using a simple and cost-effective Successive Ionic Layer Adsorption and Reaction (SILAR) approach on glass substrates with varying doping concentrations. The study investigated the morphologies, structures, optical, and gas sensing properties of both ZnO and Zr:ZnO films. Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Raman analyses confirmed the successful incorporation of zirconium onto the surface of ZnO. UV-Vis spectroscopy indicated that the films maintained high transparency in the visible region with varying zirconium content. Notably, Zr:ZnO films exhibited improved sensor response, with a quicker response–recovery time of 48 s and 6 s when sensing ammonia at 3 wt. %. The findings demonstrate that zirconium doping significantly enhances the ammonia gas sensing activity of ZnO films, suggesting the potential for practical applications in gas sensing technologies.
@article{59f7a6e9-8d70-4a37-82aa-52fe16d1b23a,
title={Effect of zirconium doping on ZnO nanost},
author={M. Sathya and G. Selvan},
year={2026},
language={en}
}TY - JOUR TI - Effect of zirconium doping on ZnO nanost AU - M. Sathya AU - G. Selvan PY - 2026 LA - en ER -
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