There is tremendous interest in one-dimensional nanostructures, since they permit enhanced properties as well as new paradigms for electronic, optical, optoelectronic, and photonic devices. Besides inorganic systems, polymeric nanowires and
nanotubes are being intensively investigated. Indeed, they allow to design complex architectures by combining different materials at the scale of the characteristic physical lengths in order to control optoelectronic properties, to get enhanced
behaviors and ultimately to promote new paradigms for devices. Moreover, the 1D geometry promotes sub-wavelength optical propagation and cavity effects suitable for integrated nanophotonic devices (for a review, see 1).
In this seminar, an insight in the design of pi-conjugated and non pi-conjugated polymeric nanostructures for tackling some challenges of light-engineering and propagation at a sub-micrometric scale will be proposed. It will concern :
- the fabrication by template strategy of nanowires, nanotubes and nanocomposites
- the study of their electrical, optical, plasmonic and photonic properties.
Pure polymer systems made of photoresist or conjugated polymer, as well as hybrid nanostructures combining a polymer matrix with carbon nanotubes, or metallic nanoparticles, or phosphorescent clusters have been exploited,
depending on the targeted functionalities. A focus on the nanostructuration effects on these properties will be proposed.
[1] A. Garreau, J.L. Duvail Advanced Optical Materials 2, 1122-1140 (2014)
Speaker biography
Jean-Luc Duvail received a B.S. in physics in 1991 and a PhD in Materials Physics under supervision of professor A. Fert (Nobel Prize in Physics, 2007) from University of Orsay Paris-XI, France. He did postdoctoral research with
professor L. Piraux at UCL, Belgium, before joining the Faculty at the University of Nantes in 1998.
He is currently professor and Nanowire group leader at the Institut des Matériaux Jean Rouxel in Nantes, France. His research is focused on (multi)functional 1D nanostructures made of (conjugated) polymers, metals,
nanocarbons, and hybrids in relation with electronics, optoelectronics, plasmonics and nanophotonics applications.
