PhD candidate: Natacha KINADJIAN

Date and place of defence: April 8, 2014 - University of Bordeaux, France.

This research project will take as a starting point, a new preparation of lamellar nanoparticles of polypyrrole (PPy), a well-known conductive polymer. This electroless process uses Swollen Liquid Crystals as a reaction host that shapes the final material into nanosheets that can be easily recovered and stored as an aqueous colloidal suspension. The first step of this research will span the combination of this polymer, used as a continuous matrix that will embed anisotropic nanomaterials, which will provide additional properties - photocatalytic (TiO2), piezoelectric (ZnO), sensing or electroactive (V2O5) or conducting (CNT) - to the resulting nanocomposite. Integration of a conducting continuous matrix with anisotropic nanoparticles will lead to the integration of multifunctional nanomaterials into systems and devices relevant to microelectronic and microsensing.

Materials will be integrated at another level by the development of specific processes including (i) development of rapid prototyping of 2D complex arrays with ink-jet printing technique in order to allow their integration in microelectronic circuits, and (ii) development of fibers by micro-extrusion in order to provide active materials that could be incorporated in other devices. This work will be carried out in relation with the industrial partner (CMC Microsystems) who wants to explore innovative ways to insert active materials into Microsystems.

This research project will address several issues:
- Develop techniques for deposition of conductive polymers and insulators on conductive substrates using ink-jet technology;
- Develop techniques for embedding and patterning nano particles in conductive polymer materials deposited by ink-jet technology;
- Use the technology developed above to fabricate a range of application-oriented functional system elements, including: (a) Antenna; (b) Resistor, capacitor and inductor structures; (c) Patterned circuits that can be used as an electronic interface to sensors based on nanotechnology.

Project Partners

UW - Chemistry Dept, Waterloo

UB1 - CRPP, Bordeaux

ULG - LCIS-GreenMAT, Li├Ęge

CMC Microsystems, Canada