What is it about?
Titanium dioxide (TO) is a promising material for gas sensing application. Laser ablation of Titanium dioxide in bulk into nano-particles for gas sensing application has not been explored. Titanium dioxide in bulk powder form was ablated using Nd:YAG nanosecond pulsed laser (1064 nm, 600 mJ, 30 min) in ethanol solution. Nanocrystalline Titanium dioxide (NTO) was synthesized and used for room temperature clad-modified fiber optic gas sensing studies. The synthesized NTO was characterized and compared the results with bulk TO. Its phase purity, crystalline structure were confirmed with X-ray diffraction (XRD), morphology and size were determined using Transmission electron microscopy (HR-TEM), UV-Vis spectroscopy was done for optical absorption analysis. The gas sensing property of NTO was investigated using fiber optic gas sensor and found to show good sensitivity and selectivity towards ethanol gas.
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Why is it important?
Titanium dioxide (TO) is a promising material for gas sensing applications. Laser ablation of Titanium dioxide in bulk into nano-particles for gas sensing application has not been explored. Interesting nano- structured and gas sensing property of NTO was investigated using fiber optic gas sensor.
Perspectives
Writing this article was a great pleasure as it has co-authors with whom I have had long-standing collaborations.
Kalai Priya A
National Institute of Technology Tiruchirappalli
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This page is a summary of: Nano-second pulsed laser ablation and transformation of bulk titanium dioxide (TiO2) into nano-particles for fiber optic gas sensor, January 2020, American Institute of Physics,
DOI: 10.1063/5.0017169.
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