Nanomaterials can be fabricated using two different approaches, i.e. top-down and bottom-up. Top-down nanofabrication makes nano-structures by repeated use of additive (film deposition) and subtractive steps that take parts of them away, while the bottom-up approach exploits the self-assembling properties of matter to obtain precisely defined nanosystems.

At FIM, the top-down approach is used to fabricate devices and systems for nanomagnetism, nanophotonics, diffractive optics and electron optics, tribology and more. Example in the field are:

  • Nanofabrication and characterization of hybrid nanodevices for (spin/opto) electronics.
  • Nanofabrication of electron-optical devices for electron beam shaping and detection.
  • Surface patterning for tribological studies.

Moreover, examples of bottom-up nanofabrication at FIM are:

  • Physical deposition of metal and oxide nanoparticles (2-10 nm diameter) with applications in photocatalysts, solid state fuel cells and photovoltaic devices.
  • on surface synthesis of atomically-precise, ultranarrow graphene nanoribbons.

Image adapted from J. Phys. Chem. C 121, 10620 (2017)


People: Prof. M. Affronte, Dr. R. Biagi, Prof. S. D’Addato, Prof. V. De Renzi, Prof .S. Frabboni, Dr. C. Menozzi, Dr. R. Tonini; Dr A. di Bona (CNR), Dr. G. Gazzadi (CNR)

[Ultimo aggiornamento: 04/02/2021 10:29:33]