laser annealing as pathway for the metal free synthesis of tailored nanographenes.

Tailored synthesis of nanographenes, and especially graphene nanoribbons (GNR), has been achieved on metal substrates a bottom-up approach from organic precursors, which paves the way to their application in nanoelectronics and optoelectronics. Since quantum confinement in nanographenes leads to the creation of peculiar band structures, strongly influenced by their topological characteristics, it is important to be able to exactly engineer them in order to precisely tune their electronic, optical and magnetic properties. However practical application of these materials requires post-synthesis transfer to insulating substrates.