Goal:

This course will provide background on critical issues on the main pi-conjugated and conducting polymers used as the active materials for the electronics applications. The different methods of chemical, electrochemical synthesis and recent synthetic methodologies will be reviewed. We will discuss the underlying scientific principles that guide the study of structure-property relationships and the supramolecular effects on the modulation of electronic properties. Applications of these polymers in their undoped (organic light emitting diodes, organic solar cells, antistatic layers…) doped state (corrosion, actuators, electrochromic, sensors ...) will be described.

Content:
  • Introduction.
  • Electronic conduction and mobility. Doping / dedoping process
  • Electrochemical and spectroscopic evaluation of HOMO/LUMO levels and the electronic bandgap.
  • Supramolecular effects on the modulation of polymers electronic properties.
  • Chemical and electrochemical synthesis of doped and undoped polymers
  • Influence of macromolecular characteristics (molecular weight and index of polydispersity Ip) on the optoelectronic properties.
  • Electrochemical and chemical n-type and p-type doping process
  • Applications of these polymers in their doped state and operating the process of doping/dedoping (batteries, supercapacitors, electrochromic devices, artificial muscles, sensors, biosensors, DNA biochips.
  • Applications of these polymers in their undoped state
  • Introduction to the field of plastic electronics
  • Measurement of energy levels (electrochemistry, photoemission spectroscopy)
  • Absorption and emission properties
  • Near-field microscopy techniques (STM, AFM ...)
  • Electron microscopy techniques (SEM, TEM, Tomography...)
  • Exciton and electronic transport properties
  • Charge transport in pi-conjugated polymers (OFET)
  • Influence of nanostructure organization on transport properties
  • Deposition method and printing techniques
  • Implementation of pi-conjugated polymers, examples of applications (organic light emitting diodes, photovoltaic thin films, thermoelectric generators)
 
Websites:

http://www.symmes.fr/Pages/Renaud-Demadrille.aspx
http://www.spram-solar.fr/