Electrospinning of active organic materials, functional polymers, and nanocomposites for photonics and energy harvesting

22-03-2018, ore 15:00
Dipartimento di Fisica e Astronomia "G. Galilei" - Aula "A. Rostagni" (Via Marzolo)

Relatore: Prof. Dario Pisignano - Dipartimento di Fisica, Università di Pisa and CNR-Istituto Nanoscienze

Active materials and building blocks involving organics or nanoparticles as well as electrospun polymer nanofibers are appealing for a variety of scientific fields, including photonics, nanoelectronics, and microelectromechanical systems.
Electrospinning technologies are especially interesting in this respect, since potentially up-scaled to industrial level.
Demonstrated devices and applications comprise various sub-wavelength optical components and nanofiber lasers, chemical sensors, and accelerometers and wearables made of piezoelectric polymer nanofibers.
Next-generation electrospun nanosystems are being designed and developed, which couple opto-mechanical properties through properly interlocked molecular components.
Here the electrospinning methods developed in our group will be presented as well as recent results on active polymer nanofibers. Investigated properties include light-confinement, optical losses and anisotropy, stimulated emission, and random lasing from complex materials obtained by biomimetic routes. The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. 306357 (ERC Starting Grant “NANO-JETS”, www.nanojets.eu).