Presentation
Summary
Objectives
Project achievement plan
Obtained results
Papers & Conferences
Budget
Equipment
Research team
PhD Students contributions
Patent application
|
|
The aim of the project is the realization of an „electronic nose” for detection of very low concentration of pollutants and explosive gases.
To obtain such a device, a microsensor array will be fabricated using integrated and miniaturized silicon based microtransducers.
The microtransducers containing a microheater and interdigitated electrodes on top are built on a thin Si3N4 membrane suspended on four arms.
The microsensor array will contain metallic-oxide based sensors, namely TiO2 and ZnO nanostructured materials with special morphologies, with large surface areas, patterned on top of the interdigitated electrodes. These are one order of magnitude more sensitive than „normal materials” and able to detect very small quantity of gases.
The novelty of the project consists:
a) the significant improvement of properties of the proposed materials by controlling the nanometer-level architecture oxide (nanostructures) by forming ordered nanoporous structures, nanorods, nanotubes, spheres, and thin films with controlled morphology and porosity;
b) new technology for microsensors fabrication with very low power consumption;
The microsensor array based on TiO2 and ZnO nanostructured materials will be tested as sensors for 5 gases: CO, propane, NOx, CH4, H2O.
The microsensor arrays will be encapsulated and coupled with an electronic module which will allow interfacing with a computer.
A laboratory platform and a mobile apparatus for gas detection will be elaborated and tested especially for interior microclimates. The use of the microsensors together with information technology will improve these microclimates and will reduce their energy consumption.
|
|
