The metal oxide nanowires will be deposited using bottom-up approach combined with innovative lift-off technique that introduces a clear technological breakthrough. The as prepared nanowires will be detached from the growth substrate and aligned between electrodes.
The arrays of parallel aligned nanowires possess features and superiorities of singe nanowire, but facilitate the overall manipulation and guarantees higher reproducibility and industrial scalability of the products. Due to almost monocrystalline perfection and atomically sharp terminations, nanowires exhibit excellent chemical and thermal stability that make them superior to conventionally used polycrystalline thin-film sensors.
Modelling activity: quantum chemical modelling helps to tune sensors against the specific hazardous agents by functionalization of the nanowires with specific end-functional groups and photoactive receptors.
The project work-plan
The research plan is divided into three work packages (WP) which present different sides of the multidisciplinary approach and rest on the individual expertise of the involved partners, e.g. nanofabrication, synthesis of NWs and
their functional characterization (CNR), organic synthesis, nanopositioning and photochemical characterization (TUT), nanopattering, functionalization and theoretical modelling (SUU).
WP 1 – Fabrication of NW-based sensing elements
Tasks: 1. Synthesis of the nanowire structures
2. Self-assembling of the aligned nanowire arrays
3. Computer DFT modeling of the hybrid structures
WP 2 – Functional sensing with NW-based structures
Tasks: 1. Modification of NWs with functional compounds
2. Photophysics/photochemistry of the hybridized NWs
3. Sensing CBRN agents with composite NWs-based arrays
WP 3 – Implementation of the sensors at SACMI and STS end-users
Tasks: 1. Integration of the sensing elements into EOS platform
2. Evaluation of the pattern recognition algorithms
3. Validation and field testing in custom applications