Abstract
Silicon dioxide was formed by oxidizing porous silicon film and annealed, in a next step, at 920 °C with lithium nitrate embedded in its structure. These operations have produced the two lithium silicates, Li 2Si 2O 5 and Li 2SiO 3, as it has been confirmed by the X-ray diffraction measurements. At relative high temperature (230 °C), the experimental ionic conductivity of this achieved sample has doubled in presence of ozone flow. A comparison with other samples, prepared with varieties of metallic nitrates and by following the same experimental procedures as for the former one, has proved that the sample prepared with zirconium was also good for ozone detection.
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