The contribution focuses on humidity gas-sensing device formation of metal oxide materials such as BaTiO3 nanorods and TiO2-BaTiO3 nanotubes. Processing of humidity sensors based on BaTiO3 nanostructured materials, that can operate under severe environmental conditions is of great relevance due to their small size and small weight. As a result, these sensors possess high stability, fast response times and reproducibility. Furthermore, gas sensor properties are not only interesting in terms of device applications, but also pave the way to study in deep ionic and electronic conduction mechanisms in individual nano-based devices.
B.04 Guest lecture
COBISS.SI-ID: 30623271Humidity and oxygen nanosensors have a significant impact on the quality of life, due to their miniaturization and economy and last but not least the use of environmentally user-friendly materials (reducing the pollution by a small amount of waste material and use of ecologically-friendly materials). Processing of humidity and oxygen nanosize sensors that can operate under severe environmental conditions is of great relevance due to their small size and small weight. These sensors also possess high stability, fast response times and reproducibility.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 28968999Titanium dioxide (TiO2) in the form of nanostructures/nanoparticles exhibits interesting physical properties that are a consequence of a large surface/volume ratio, large specific surface area, crystal structure and/or modified chemical composition. This is what enables TiO2 to be used in many technological applications potentially oriented to clean environment as well. In our contribution we describe the following three applications (TRL4 level) based on TiO2 nanotubes: photocatalytic reactor, COD measuring device and flexible DSPEC solar cells.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 28969255Titanates are suitable for many applications such as oxygen sensing and tunable HTS (high temperature superconducting) microwave filters. The potential advantages of the nanostructured forms have been however scarcely explored compared to other oxides. In this work, the structural and electrical properties of individual iron-doped strontium titanate nanotubes (Fe:SrTiO3) grown by electrophoretic deposition (EPD) were assessed for the first time, showing high stability and reproducibility. This result paves the way to further development of more complex titanate-based devices, as for instance nanostructured oxygen STFO sensors. From experimental data, it was concluded that the polycrystalline form of Fe:SrTiO3 nanotubes is the major limitation to attain high photoconductivity gains when exposed to UV-light.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 28022055The innovation fits in the scope of the photocatalytic reactor that can be used as waste water purification, synthesis of organic molecules, or the determination of the chemical oxygen demand. A patent application consists of two different designs of photocatalytic reactors and the main advantages of them is high efficiency, low cost and ease of manufacture. Both solutions have a large ratio between the surface of the photocatalyst and the volume of the reactor and allow exploitation electro-photocatalysis, which further improves their efficiency.
F.33 Slovenian patent
COBISS.SI-ID: 30350119