Electro-active polymers

Electro-active polymers

Materials
Electroactive polymers and polymer-based microsystems

Synthesis
Spin coating, insolation, etching, evaporation – millimeter size – near room temperature – collective fabrication

Mastering
Complete/exploratory

Applications
Polymer-based sensors and actuators, biomedicine, defense

Characterisation
Deformation measurements, µforces and electrical characterization

Partnership
OTICON, Robeauté

Nanoparticles

Nanoparticles

Materials
Polymer-based nanoparticles

Synthesis
Grinding – several grams – 50-400 nm size – room temperature and atmosphericpressure

Mastering
Complete

Applications
Nano medicine, aquaculture, agriculture

Characterisation
DLS, SEM, TEM, FTIR, Raman, DRX, XPS

Partnership
SATT, forthcoming startup

Organic materials

Organic materials

Materials
Organic semiconductors (mainly pentacene) – organic polymer (parylene)

Synthesis

  • Organic SC : PVD chamber (10-7 mbar) with 3 crucibles for organic materials and 2 for metals installed within a glove box (H2O and O2 < 5 ppm) – up to 3 inch wafers – deposited thickness < 200 nm
  • Organic polymer : CVD Comelec system – room temperature – 10-3 mbar – conformal deposition from 30 nm to 20 µm

Mastering
Complete

Applications
Organic semiconductor based devices
Encapsulation, mechanical reinforcement

Characterisation
AFM, STM, FTIR, XPS, SEM, ellipsometry, profilometry

Self-assembled monolayers (SAMs)

Self-assembled monolayers (SAMs)

Materials
Self assembled organic monolayers, surface functionalization by chemisorption

Synthesis
Liquid or gas phase chemistry with solvents – glove box – up to 4 icnh wafers – mainlyroom temperature and ambiant pressure

Mastering
Complete

Applications
Sensors, switchs, memories, substrate encapsulation, active surfaces for chemical, optical or electrical stimulation

Characterisation
Contact angle, ellipsometry, AFM, STM, FTIR, UV, XPS, voltammetry

Partnership
Angers, Orsay and Jussieu universities

Composite materials

Composite materials

Materials
Derived from
– hybrid organic/inorganic precursors : SiCxOy, GeCxOy, SiC/SiO2/Si, hybrid polymers, organic polymers
– Algae and rice husk

Synthesis

  • Si/Ge/O/C based materials : Sol-gel process – 1×1 cm2 samples – atmospheric pressure – 25 to 1450°C
  • Algae and rice husk : High temperature reactor under various atmospheres (Wet/dry O2, H2, Ar, He, CO2)

Mastering
Complete/exploratory

Applications
Broadband THz and µwave absorbers, materials for harsh atmosphere
Renewable fuels and energy at lower cost, porous materials, thermomechanical composite materials

Characterisation
TG/MS, Raman, ATR-IR, SEM, electrical and thermal properties

Partnership
Sorbonne University, IETR Rennes